Z3d152 Volume 2 Quiz

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1. Which topology has the stations connected in the form of a circle?

Explanation

A ring topology has the stations connected in the form of a circle. In this type of network, each station is connected to two other stations, forming a closed loop. Data travels in one direction around the ring, passing through each station until it reaches its destination. This topology is commonly used in token ring networks, where a token is passed around the ring to control access to the network.

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About This Quiz
Data Communication Quizzes & Trivia

The Z3D152 Volume 2 Quiz assesses knowledge in data communication, focusing on OSI model layers, video compression standards, and communication protocols. It is designed for learners interested in networking and data communication technologies.

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2. Which topology combines two or more different physical topologies in a single network?

Explanation

A hybrid topology combines two or more different physical topologies in a single network. This means that it can have a combination of bus, ring, star, or any other topologies. In a hybrid topology, different sections of the network may use different topologies depending on the requirements of that section. This allows for flexibility and scalability in the network design, as different topologies can be used to optimize different parts of the network.

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3. The three cornerstones of voice network system security are availability,

Explanation

Confidentiality refers to keeping information private and preventing unauthorized access. Integrity refers to ensuring that data is accurate, complete, and unaltered. These two cornerstones are essential for maintaining the security of a voice network system. By ensuring confidentiality, sensitive information such as conversations and user data is protected from unauthorized individuals. Integrity ensures that the data transmitted over the network is not tampered with or modified in any way, ensuring its accuracy and reliability. Together, confidentiality and integrity provide a strong foundation for securing a voice network system.

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4. A Management Information Base (MIB) is a collection of information that is organized

Explanation

A Management Information Base (MIB) is a collection of information that is organized hierarchically. This means that the information is structured in a hierarchical manner, with higher-level categories or groups containing lower-level subcategories or individual objects. This hierarchical organization helps in organizing and managing the information effectively, allowing for easy navigation and retrieval of specific information within the MIB.

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5. Which data communication protocol is based on bits and the position of the bits?

Explanation

Bit-oriented is the correct answer because this data communication protocol is based on bits and the position of the bits. In bit-oriented protocols, the data is transmitted and interpreted bit by bit, with specific bit patterns indicating the start and end of a message. These protocols focus on the individual bits rather than grouping them into characters or packets. This approach allows for more precise control and synchronization in data transmission.

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6. Internet protocol version 6 (IPv6) addresses are represented by

Explanation

IPv6 addresses are represented by 8 groups of hexadecimal numbers. This is because IPv6 uses a 128-bit address space, which is much larger than the 32-bit address space used by IPv4. Hexadecimal notation allows for more compact representation of the large address space, as each group represents 16 bits. Each group is separated by a colon, resulting in a total of 8 groups in an IPv6 address.

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7. Which topology defines the way in which devices communicate and data is transmitted throughout the network?

Explanation

Logical topology defines the way in which devices communicate and data is transmitted throughout the network. It describes how the network appears to the devices that use it, regardless of the physical layout. Logical topology determines how data flows between devices and how they communicate with each other, regardless of the physical connections. This includes protocols, addressing schemes, and the paths that data takes from one device to another.

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8. In what type of digital signal does the signal level move to one of the discrete signal levels, but returns to the zero level after a predetermined time?

Explanation

In a return-to-zero (RZ) digital signal, the signal level moves to one of the discrete signal levels (usually a high or low level) and then returns to the zero level after a predetermined time. This means that the signal alternates between the two levels and includes zero level transitions, which helps in clock synchronization and signal recovery. In contrast, non-return-to-zero (NRZ) signals do not return to the zero level during a bit interval.

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9. In binary-synchronous protocol, which characters establishes and maintains character synchronization prior to the message block and during transmission?

Explanation

In binary-synchronous protocol, the character "SYN" is used to establish and maintain character synchronization prior to the message block and during transmission. This means that the "SYN" character is responsible for ensuring that the sender and receiver are in sync and can properly interpret the transmitted data. It helps in avoiding any errors or misinterpretations that may occur during transmission.

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10. Which network layer protocol matches a known Internet protocol (IP) address for a destination device to a Media Access Control (MAC) address?

Explanation

The correct answer is Address Resolution Protocol (ARP). ARP is a network layer protocol that is used to match a known IP address for a destination device to its corresponding MAC address. This is necessary because IP addresses are used for routing packets across networks, while MAC addresses are used for communication within a local network. ARP allows devices to discover and store the MAC address of a device on the same network, enabling them to communicate directly.

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11. What should security policies encompass to help mitigate the threat of convergence?

Explanation

Security policies should encompass both voice and data networks to help mitigate the threat of convergence. Convergence refers to the integration of different communication technologies, such as voice and data, onto a single network. By including both voice and data networks in security policies, organizations can ensure that measures are in place to protect against potential threats and vulnerabilities that may arise from the convergence of these networks. This can include implementing firewalls, encryption, access controls, and monitoring systems to safeguard against unauthorized access, data breaches, and other security risks.

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12. Which of the following is an example of a video compression standard?

Explanation

Motion Picture Experts Group-4 (MPEG-4) is an example of a video compression standard. It is a widely used format for video compression and is known for its ability to provide high-quality video while maintaining relatively small file sizes. MPEG-4 allows for efficient compression by using various techniques such as motion compensation, transform coding, and entropy coding. It is commonly used for streaming video over the internet, video conferencing, and multimedia applications.

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13. What is most commonly used in data systems to express signaling speed?

Explanation

Bits per second is the most commonly used term in data systems to express signaling speed. Baud rate refers to the number of signal changes per second, while interface speed is a more general term. Baud per second is not a recognized term. Therefore, bits per second is the correct answer as it directly represents the number of bits transmitted or received per second in a data system.

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14. Which device subdivides a network into smaller logical pieces, or segments?

Explanation

A switch is a device that subdivides a network into smaller logical pieces or segments. It operates at the data link layer of the OSI model and uses MAC addresses to forward data packets to the appropriate destination. By creating separate segments, a switch improves network performance and reduces collisions. It allows for efficient communication between devices within the same segment while preventing unnecessary traffic from congesting the entire network. Therefore, a switch is the correct device to subdivide a network into smaller logical pieces.

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15. The time it takes a switch to figure out where to forward a data unit is called its

Explanation

Latency refers to the time it takes for a switch to determine the appropriate destination for a data unit. It is the delay caused by the switch in processing and forwarding the data. The term "lag" refers to a delay or interruption in data transmission, but it does not specifically relate to the switch's decision-making process. "Hop" refers to the number of devices a data unit passes through before reaching its destination, not the time it takes for the switch to make a forwarding decision. "Time zone" is unrelated to the switch's processing time.

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16. Which statement best describes a binary with eight-zero substitution (B8ZS) signal?

Explanation

B8ZS is a line coding technique used in telecommunications to ensure the accuracy of data transmission. It intentionally inserts bipolar violations into a data signal to break up long strings of zeros. This is done to prevent synchronization issues and maintain the integrity of the transmitted data. By inserting these violations, the receiver can easily differentiate between consecutive zeros and ensure reliable decoding of the information being transmitted.

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17. In the Open System Interconnect (OSI) model, a layer will communicate with three other OSI layers. Which one is not one of those layers?

Explanation

The OSI model consists of seven layers, each responsible for a specific set of functions. In this context, the "lowest layer" refers to the Physical layer, which is responsible for the actual transmission and reception of data over a physical medium. The other layers mentioned in the question - layer above, layer below, and peer layer - are all valid layers in the OSI model.

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18. What allows transportation of all active Virtual LANs (VLAN) between switches using a single physical link?

Explanation

VLAN trunks allow the transportation of all active VLANs between switches using a single physical link. A VLAN trunk is a connection that carries multiple VLANs over a single link, allowing for efficient use of network resources. It enables switches to differentiate between different VLANs by adding a VLAN tag to the Ethernet frame, ensuring that the correct VLAN information is maintained throughout the network. This allows for the consolidation of VLAN traffic onto a single link, simplifying network design and management.

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19. What identifier differentiates one wireless local area network (WLAN) from another?

Explanation

The Service Set Identifier (SSID) is the correct answer because it is a unique name that differentiates one wireless local area network (WLAN) from another. The SSID is broadcasted by the wireless access point and is used by devices to identify and connect to a specific WLAN. The hostname is a label assigned to a device on a network, the network name is a general term that refers to the name of a network, and the Virtual LAN Identifier (VLAN ID) is used to differentiate between different virtual LANs within a network.

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20. What are attempts to gain access to a switch system by posing as an authorized user?

Explanation

Masquerades refer to attempts to gain access to a switch system by posing as an authorized user. This involves disguising oneself as someone with legitimate access privileges in order to bypass security measures and gain unauthorized entry. It is a form of social engineering where the attacker impersonates an authorized user to deceive the system and gain access to sensitive information or perform malicious activities.

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21. Which Application layer protocol is used to synchronize the clocks of computers on a network?

Explanation

Network Time Protocol (NTP) is used to synchronize the clocks of computers on a network. It is designed to keep all the devices on a network in sync by exchanging time information between them. NTP uses a hierarchical structure with primary time servers at the top, which are connected to secondary servers, and so on. This protocol ensures that all devices on the network have accurate and synchronized time, which is crucial for various applications and services that rely on time synchronization, such as authentication, logging, and coordination of distributed systems.

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22. What type alarm occurs if the sensor post cover in vertical taut-wire sensor (VTWS) is removed?

Explanation

If the sensor post cover in a vertical taut-wire sensor (VTWS) is removed, it would trigger a tamper alarm. This alarm is designed to alert the system that there has been an unauthorized attempt to tamper with or disable the sensor. Removing the cover of the sensor post would be considered tampering with the equipment, hence the tamper alarm would be activated.

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23. Which router port is used for initial configuration?

Explanation

The correct answer is Console. The console port on a router is used for the initial configuration. It is a physical port that allows direct access to the router's command-line interface (CLI) through a console cable. This port is typically used for initial setup, troubleshooting, and password recovery. The console port provides a direct, physical connection to the router, allowing administrators to configure the router without the need for network connectivity.

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24. Which agency is the preferred transport provider for Internet and commercial satellite connections used for voice, video and/or data services on DOD networks?

Explanation

The preferred transport provider for Internet and commercial satellite connections used for voice, video, and/or data services on DOD networks is the Defense Information Systems Agency (DISA). DISA is responsible for providing secure and reliable communication and information systems to support the military's operations. They work closely with commercial providers to ensure that the DOD networks have the necessary connectivity and services. The National Security Agency (NSA) is primarily responsible for intelligence and cybersecurity, while the Air Force Space Command (AFSPC) focuses on space and cyberspace operations.

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25. Virtual Private Networks (VPNs) allow the AF to extend network resources across a/an

Explanation

Virtual Private Networks (VPNs) allow the Air Force (AF) to extend network resources across a public network. This means that the AF can securely connect to and access its network resources from any location, even when connected to an untrusted or public network such as the internet. VPNs use encryption and other security measures to ensure that data transmitted over the public network remains private and secure. This allows the AF to maintain the confidentiality and integrity of its network communications while still being able to access resources remotely.

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26. In an Intrusion Detection System (IDS) what is the main purpose of a boundary fence?

Explanation

The main purpose of a boundary fence in an Intrusion Detection System (IDS) is to present a physical and psychological deterrent to unauthorized entry. The fence acts as a barrier that makes it difficult for intruders to enter the protected area, and it also serves as a visual indication that the area is secure. By creating a physical obstacle and conveying a sense of security, the fence discourages unauthorized individuals from attempting to breach the perimeter. This helps to prevent potential intrusions and enhances the overall effectiveness of the IDS.

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27. The basic configuration of the entry control facility includes a 

Explanation

The basic configuration of the entry control facility includes a gatehouse, personnel entry gate, inspection equipment, and vehicle entrapment area. This setup ensures that there is a designated area for security personnel to monitor and control access to the facility. The gatehouse serves as a central control point where personnel can verify the identity of individuals entering the facility. The personnel entry gate is where individuals are allowed to enter after their identity has been verified. Inspection equipment is necessary to check for any prohibited items or potential threats. The vehicle entrapment area provides a secure space for vehicles to be inspected before entering the facility.

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28. Which Network layer protocol provides messaging that can help with troubleshooting?

Explanation

ICMP is a network layer protocol that provides messaging for troubleshooting purposes. It is used by network devices to send error messages and operational information, allowing network administrators to identify and resolve issues within the network. ICMP messages include error reporting, network congestion notifications, and network testing tools such as ping. Therefore, ICMP is the correct answer as it facilitates troubleshooting by providing essential information about network connectivity and performance.

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29. Which Transport layer protocol provides reliable data delivery services?

Explanation

Transmission Control Protocol (TCP) is the correct answer because it provides reliable data delivery services. TCP ensures that data is delivered in the correct order and without errors by using acknowledgments, retransmissions, and flow control mechanisms. It establishes a connection between the sender and receiver, breaks the data into packets, and reassembles them at the destination. TCP also implements error detection and correction techniques to ensure reliable delivery of data.

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30. Which routing protocol do internet backbones use?

Explanation

Internet backbones use the Border Gateway Protocol (BGP) as their routing protocol. BGP is specifically designed for large-scale networks and is used to exchange routing information between autonomous systems (AS). It allows internet service providers (ISPs) to determine the most efficient paths for data to travel across the internet, ensuring reliable and efficient routing. BGP is the protocol of choice for internet backbone networks due to its scalability, robustness, and ability to handle complex routing policies.

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31. When configuring a router, you control access to privileged EXEC mode by configuring which password?

Explanation

When configuring a router, access to privileged EXEC mode can be controlled by configuring the "Enable" password. This password is used to secure the router's privileged EXEC mode, which provides access to advanced configuration and management commands. By setting an "Enable" password, only authorized users will be able to enter privileged mode and make changes to the router's configuration.

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32. The primary reason you should measure the voltage across faulty terminal protectors before removing and replacing them is to

Explanation

Measuring the voltage across faulty terminal protectors before removing and replacing them is important to ensure that dangerous voltages are not present on the line. This is crucial for the safety of the person performing the task as well as to prevent any potential damage to the equipment or circuit. By measuring the voltage, one can determine if it is safe to proceed with the replacement without risking electrical shocks or other hazards.

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33. How many voltage levels does a binary signal have?

Explanation

A binary signal has two voltage levels. In digital communication, a binary signal represents information using only two distinct values, typically represented as 0 and 1. These values are usually represented by different voltage levels, where one voltage level represents a logical low (0) and the other represents a logical high (1).

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34. How many bits are in the extended superframe format (ESF) framing sequence?

Explanation

The extended superframe format (ESF) framing sequence consists of 24 bits.

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35. Trend analysis is a program that ensures circuits meet management thresholds on what basis?

Explanation

Trend analysis is a program that ensures circuits meet management thresholds on a monthly basis. This means that the program analyzes data and trends over a monthly period to determine if circuits are meeting the required thresholds set by management. It allows for a more comprehensive and detailed analysis of performance over time, compared to daily, weekly, or annual analysis.

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36. The signal components that occur as bands above and below a carrier are called

Explanation

Sidebands are the signal components that occur as bands above and below a carrier. They are created during the process of modulation, where the modulating frequencies are combined with the carrier signal. These sidebands contain the information that is being transmitted and are essential for the successful demodulation and recovery of the original signal.

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37. Which network Class has the most addresses for hosts?

Explanation

Class A networks have the most addresses for hosts because they use the first octet of the IP address to identify the network, leaving the remaining three octets for host addresses. This allows for a large number of possible host addresses, making Class A networks suitable for large organizations or ISPs that require a large number of hosts on their network.

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38. How many subnet bits are required to support 90 subnets on a Class B network?

Explanation

To support 90 subnets on a Class B network, seven subnet bits are required. This is because with each additional subnet bit, the number of subnets doubles. Starting with a Class B network, which has 16 bits for the network portion, adding seven subnet bits would give us a total of 23 bits for the network portion. This allows for 2^7 (128) subnets, which is more than enough to support 90 subnets.

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39. In an Intrusion Detection System (IDS) what must a line of detection detect?

Explanation

The line of detection in an Intrusion Detection System (IDS) must be able to detect any movement, whether it is walking, running, rolling, crawling, or jumping, through the line of detection. This means that the system should be able to identify any physical intrusion or unauthorized access attempts that occur within the designated area of detection.

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40. Simple Network Management Protocol (SNMP) is a tool used by network administrators to manage network performance, investigate and solve network problems and help plan for

Explanation

SNMP is a tool used by network administrators to manage network performance, investigate and solve network problems, and help plan for future growth. By monitoring network devices and collecting data, SNMP allows administrators to identify areas where the network may need to be expanded or upgraded to accommodate future demands. This helps ensure that the network can handle increased traffic, new devices, and additional users as the organization grows.

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41. In general, you should deny direct dial-in access to a network device by disabling which port?

Explanation

The correct answer is "Auxiliary." The auxiliary port on a network device is typically used for out-of-band management, allowing administrators to remotely access and configure the device. By denying direct dial-in access to the auxiliary port, you can enhance security by preventing unauthorized access to the device. Disabling the console port would prevent local access to the device, disabling the interface would impact network connectivity, and disabling the virtual terminal would prevent remote access via Telnet or SSH.

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42. If the circuit files are lost or destroyed, what document are Technical Control Facilities required to obtain?

Explanation

Technical Control Facilities are required to obtain the latest telecommunications service order (TSO) that reflects the current end-to-end circuit configuration in case the circuit files are lost or destroyed. This document is important as it provides information about the circuit's configuration, allowing the Technical Control Facilities to recreate and restore the circuit accurately. The TSO serves as a reference for understanding the circuit's specifications and requirements. By obtaining the latest TSO, the Technical Control Facilities can ensure that the circuit is reestablished correctly and functions as intended.

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43. Within how many normal duty hours of completion action on the Telecommunications Service Order (TSO) must the circuit control office (CCO) submit an in-effect report?

Explanation

Within 72 normal duty hours of completion action on the Telecommunications Service Order (TSO), the circuit control office (CCO) must submit an in-effect report. This report is necessary to provide an update on the status and effectiveness of the TSO. It ensures that the necessary documentation is completed in a timely manner and allows for proper tracking and monitoring of the telecommunications services.

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44. Combined distribution frames encompass the functions of a main distribution frame and

Explanation

Combined distribution frames encompass the functions of a main distribution frame and an intermediate distribution frame. This means that they serve as a central point for connecting multiple communication lines and distributing them to various locations. The main distribution frame handles the incoming lines, while the intermediate distribution frame handles the distribution of these lines to different areas or departments within a building or facility. Therefore, the correct answer is an intermediate distribution frame.

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45. What do Global Positioning System (GPS) satellites use to provide very precise time to GPS receivers?

Explanation

GPS satellites use atomic clocks to provide very precise time to GPS receivers. Atomic clocks are extremely accurate timekeeping devices that use the vibrations of atoms to measure time. They are based on the principle that certain atoms, such as cesium or rubidium, oscillate at a very specific frequency when exposed to electromagnetic radiation. By measuring these vibrations, atomic clocks can provide highly accurate time measurements. This precision is essential for GPS satellites to accurately calculate the position of GPS receivers on Earth.

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46. Which device has multiport connectivity that directs data between nodes on a network?

Explanation

A router is a device that has multiport connectivity and is responsible for directing data between nodes on a network. It acts as a central hub, receiving data packets from multiple devices and determining the most efficient path for the data to reach its destination. Routers operate at the network layer of the OSI model and use IP addresses to forward data between different networks. Unlike bridges, gateways, and repeaters, routers have the ability to make intelligent decisions based on network protocols and routing tables, making them the correct answer for this question.

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47. In common associated signaling (CAS), what is the seventh bit in frames 6 and 12 used for?

Explanation

The seventh bit in frames 6 and 12 in common associated signaling (CAS) is used for bit robbing. Bit robbing is a technique used to steal one bit from each frame to carry signaling information. This allows for additional signaling information to be transmitted without the need for extra frames, maximizing the efficiency of the signaling system.

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48. Which physical security action can you take to ensure network equipment supports the widest range of security services?

Explanation

By configuring the network equipment with the maximum amount of memory possible, it ensures that the equipment can handle a wide range of security services. Memory plays a crucial role in the performance and functionality of network devices, allowing them to process and store data efficiently. With more memory, the equipment can support various security services simultaneously, such as encryption, authentication, and intrusion detection systems. This enables the network to be more secure by providing a robust defense against potential threats and vulnerabilities.

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49. What is the process, or result of the process, of modifying (varying) one or more characteristics of a carrier signal in accordance with an instantaneous characteristic of an information signal?

Explanation

Modulation is the process of modifying one or more characteristics of a carrier signal in accordance with an instantaneous characteristic of an information signal. It involves altering the amplitude, frequency, or phase of the carrier signal to encode the information signal. This allows the information to be transmitted over a medium such as air or a cable. Modulation is commonly used in various communication systems, including radio, television, and telecommunications, to ensure efficient and accurate transmission of data.

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50. Which interior intrusion detection system (IIDS) sensor uses heat radiation to detect intruders?

Explanation

Passive infrared sensors use heat radiation to detect intruders. These sensors are designed to detect changes in infrared energy patterns in their surroundings. When an intruder enters the area, the sensor detects the heat emitted by their body and triggers an alarm. Unlike ultrasonic and microwave sensors, which use sound waves and radio waves respectively, passive infrared sensors rely solely on heat radiation for detection. Dual-phenomenology sensors, on the other hand, combine multiple detection methods, such as passive infrared and microwave, to enhance accuracy and reduce false alarms.

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51. Which stratum level is a Global Positioning System (GPS) timing source?

Explanation

A Global Positioning System (GPS) timing source is typically found at the stratum level 1. This means that it is a highly accurate and reliable timing source that is directly connected to an atomic clock or a radio clock. Stratum level 1 devices are considered the most accurate and are typically used as a reference for other devices in a network.

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52. Which communications control signal uses a two-frequency dialing combination?

Explanation

Tone is the correct answer because it is the communications control signal that uses a two-frequency dialing combination. In telecommunications, tone dialing, also known as dual-tone multi-frequency (DTMF), is the method used to input digits or send control signals over a telephone line. It uses a combination of two specific frequencies to represent each digit or control signal, allowing for more efficient and reliable communication.

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53. Individual pulses within a digital signal are

Explanation

Individual pulses within a digital signal are referred to as bits. In digital communication, a bit is the basic unit of information that represents either a 0 or a 1. These binary values are used to encode and transmit data in various forms such as text, images, and videos. Each pulse in a digital signal represents a single bit, allowing for the transmission and storage of information in a digital format. Therefore, bits are the correct answer in this context.

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54. Which Institute of Electrical Electronics Engineers (IEEE) specification is least susceptible to interference caused by household appliances and medical devices?

Explanation

The 802.11a specification is least susceptible to interference caused by household appliances and medical devices. This is because it operates on a higher frequency band (5 GHz) compared to 802.11b and 802.11g (2.4 GHz), which is more crowded and prone to interference. Additionally, 802.11a uses a different modulation scheme (OFDM) that provides better resistance to interference. Therefore, 802.11a is the best choice in environments with potential interference from household appliances and medical devices.

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55. Which Digital Multiplex System (DMS)-100 database facility is responsible for creating and maintaining tables of data in a controlled manner?

Explanation

The Table Control facility in the DMS-100 database is responsible for creating and maintaining tables of data in a controlled manner. This facility ensures that the data in the tables is organized and managed effectively, allowing for efficient storage and retrieval of information. It helps in maintaining data integrity and consistency by enforcing rules and constraints on the data stored in the tables.

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56. To prevent frequency modulation (FM) radio stations from interfering with each other, the Federal Communications Commission (FCC) has set limits that allow each station to cause its oscillator frequency to deviate no more than

Explanation

The Federal Communications Commission (FCC) sets limits on the amount of frequency deviation allowed for FM radio stations to prevent interference between stations. In this case, the correct answer is 75kHz, which means that each station is permitted to cause its oscillator frequency to deviate by a maximum of 75kHz. This restriction ensures that the signals from different FM stations do not overlap and cause interference with each other, allowing for clear and uninterrupted reception for listeners.

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57. What provides enterprise wide visibility into telecom resource utilization, phone network usage and incidents of toll fraud?

Explanation

The correct answer is the Enterprise Telephony Management System. This system provides enterprise-wide visibility into telecom resource utilization, phone network usage, and incidents of toll fraud. It allows organizations to monitor and manage their telephony infrastructure, including phone lines, extensions, and call records. By using this system, companies can track and analyze their telecom expenses, optimize resource allocation, and detect and prevent fraud or misuse of phone services.

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58. What web application is used to order telecommunications products and services from the Defense Information Systems Agency (DISA)?

Explanation

DDOE is the correct answer because it is the web application specifically used to order telecommunications products and services from the Defense Information Systems Agency (DISA). The other options mentioned, FaCIT, CIPS, and TCOSS, are not specifically designed for this purpose.

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59. Which of the following will minimize EtherChannel configuration problems?

Explanation

Configuring all interfaces to operate at the same speed and duplex mode will minimize EtherChannel configuration problems. This ensures that all interfaces within the EtherChannel have consistent settings, preventing any potential mismatches or conflicts that could lead to configuration issues. By having uniform speed and duplex mode, the interfaces can effectively communicate and work together as a bundle, improving overall performance and stability.

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60. Teredo has four tunneling components. Which one is not one of them?

Explanation

Teredo is an IPv6 transition technology that allows IPv6 packets to be transmitted over an IPv4 network. It consists of four tunneling components: Host-specific relay, Client, Server, and Agent. The Agent is not one of the tunneling components in Teredo.

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61. Which option is a characteristic of synchronous data operation?

Explanation

The characteristic of synchronous data operation that is being described in the given options is that all data bits are the same length in time. In synchronous data transmission, the sender and receiver must be synchronized in order to transmit and receive data accurately. This synchronization is achieved by dividing the data into fixed-length units, where each unit represents a data bit. By ensuring that all data bits are the same length in time, the sender and receiver can easily synchronize their clocks and accurately interpret the transmitted data.

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62. Which wireless design phase accounts for the amount of users on the network, the training required for the users and the security and integrity requirements of the network data?

Explanation

The correct answer is Planning. During the planning phase of wireless design, various factors are taken into account, including the number of users on the network, the training required for the users, and the security and integrity requirements of the network data. This phase involves determining the goals and objectives of the wireless network, conducting a site survey, and creating a detailed plan for the implementation of the network.

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63. What report must be sent if the circuit does not meet all required parameters and the Telecommunications Service Order (TSO) issuing authority advises that the circuit is accepted for service?

Explanation

If the circuit does not meet all required parameters but is still accepted for service by the TSO issuing authority, a report called "Exception" must be sent. This report is used to document and report any deviations or exceptions from the required parameters of the circuit. It helps to track and address any issues or discrepancies in the circuit's performance or functionality.

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64. What are the two major types of frame structures?

Explanation

The correct answer is CCITT and low speed. CCITT stands for International Telegraph and Telephone Consultative Committee, which is an organization that sets standards for telecommunication systems. Low speed refers to a type of frame structure that operates at a slower data transmission rate. Therefore, CCITT and low speed are the two major types of frame structures mentioned in the question.

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65. Which form of multiplexing is very susceptible to signal deterioration?

Explanation

Frequency-division multiplexing is very susceptible to signal deterioration because it divides the available bandwidth into different frequency channels. Each channel is allocated a specific frequency range, and if there is any interference or noise within that frequency range, it can degrade the quality of the signal. Additionally, frequency-division multiplexing requires precise synchronization between the transmitter and receiver to ensure that the different channels are properly separated, and any timing errors can further degrade the signal quality.

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66. When a telephone network is circuit switched, each call

Explanation

In a circuit-switched telephone network, each call has a dedicated circuit created by the switch. This means that once the circuit is established, it remains dedicated to that particular call for the duration of the conversation. This ensures a continuous and reliable connection between the calling and receiving parties, as no other calls can use the same circuit during that time. This method is commonly used in traditional telephone systems, where the quality of the connection is prioritized over the efficient use of network resources.

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67. At what Open System Interconnection (OSI) layer are virtual circuits established, maintained and terminated?

Explanation

Virtual circuits are established, maintained, and terminated at the Transport layer of the Open System Interconnection (OSI) model. This layer is responsible for end-to-end communication and ensures reliable and error-free delivery of data between network hosts. It establishes connections, manages flow control, and handles error recovery. The Transport layer protocols, such as TCP (Transmission Control Protocol), provide the necessary mechanisms for establishing virtual circuits and ensuring the delivery of data packets in the correct order.

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68. Which DD form is used as the primary source of information when preparing DOD Information Network (DODIN) status reports?

Explanation

The correct answer is 1443. This form is used as the primary source of information when preparing DOD Information Network (DODIN) status reports.

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69. Which interior intrusion detection system is designed to detect intruders attempting to enter a shelter, storage igloo or building?

Explanation

The AN/GSS-39 is the correct answer because it is an interior intrusion detection system specifically designed to detect intruders attempting to enter a shelter, storage igloo, or building. The other options, AN/GSS-42, AN/GSS-41, and AN/GSS-29, do not have the same purpose or functionality as the AN/GSS-39.

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70. In Integrated Services Digital Network (ISDN), the "B" channel carries

Explanation

In Integrated Services Digital Network (ISDN), the "B" channel carries user traffic. This means that the "B" channel is responsible for carrying the actual data transmitted by the user, such as voice, video, or digital information. The "B" channel is one of the two channels in ISDN, the other being the "D" channel which is responsible for carrying signaling and control information.

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71. The method of multiplexing the T1 multiplexer uses is

Explanation

The T1 multiplexer uses the method of time division. This means that it divides the available time slots into smaller intervals and assigns each interval to a different input source. This allows multiple signals to be transmitted simultaneously over a single communication channel by taking turns using the available time slots. Each input source is given a specific time slot during which it can transmit its data, ensuring that all signals are properly multiplexed and demultiplexed at the receiving end. This method is commonly used in telecommunications to efficiently utilize the available bandwidth.

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72. If a circuit fails its management threshold, what test might be performed?

Explanation

If a circuit fails its management threshold, the appropriate test to be performed would be quality control. Quality control involves inspecting and testing the circuit to ensure that it meets the required standards and specifications. By conducting quality control, any issues or failures in the circuit can be identified and addressed, allowing for necessary adjustments or repairs to be made to ensure its proper functioning.

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73. Who is responsible for all circuits within their facility up to the designated demarcation point and provides troubleshooting assistance at the direction of the Global NetOps Support Center (GNSC)?

Explanation

The Node side coordinator is responsible for all circuits within their facility up to the designated demarcation point and provides troubleshooting assistance at the direction of the Global NetOps Support Center (GNSC). They oversee the circuits and ensure their proper functioning, and also assist in troubleshooting any issues that may arise. They act as a point of contact between the facility and the GNSC, coordinating and facilitating communication and actions related to the circuits.

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74. Which is not a component of the voice protection system architecture?

Explanation

The voice protection system architecture is designed to safeguard voice communication. It typically includes components such as servers, firewalls, software, and appliances. However, a firewall is not considered a component of the voice protection system architecture as it is primarily responsible for monitoring and controlling network traffic, rather than specifically protecting voice communication.

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75. A digital signal that contains synchronizing bits within the signal stream describes

Explanation

A digital signal that contains synchronizing bits within the signal stream describes asynchronous operation. Synchronizing bits are used to maintain the timing and synchronization between the sender and receiver in an asynchronous communication system. These bits are inserted at regular intervals within the signal stream to ensure accurate transmission and reception of data. Therefore, the presence of synchronizing bits indicates that the operation is asynchronous, where data is transmitted independently of a clock signal.

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76. What type of signal is sent to the fence protection system (FPS) signal processor when an alarm is detected?

Explanation

When an alarm is detected in the fence protection system (FPS), an analog signal is sent to the signal processor. An analog signal represents continuous data and can have an infinite number of values within a given range. This type of signal is commonly used in security systems as it provides a more accurate representation of the detected alarm, allowing for better analysis and response.

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77. To create a better timing environment in communications networks, external timing distribution occurs through

Explanation

Station clocks are used to create a better timing environment in communications networks by providing accurate and synchronized time to all the devices within the network. These clocks act as a central reference point and distribute the timing signal to ensure that all the devices operate on the same time scale. This helps in maintaining the integrity and reliability of the network by ensuring that data and signals are transmitted and received at the correct time.

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78. What is the maximum number of ports that a Meridian System Logic -100 (MSL-100) supports?

Explanation

The Meridian System Logic -100 (MSL-100) supports a maximum of 30,000 ports.

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79. What Digital Multiplex System (DMS)-100 system contains subsystems for test routing, fault detection, fault analysis and error reporting?

Explanation

The correct answer is "Maintenance and administration position". The DMS-100 system contains subsystems for test routing, fault detection, fault analysis, and error reporting, which are all tasks typically performed by the maintenance and administration position. This position is responsible for monitoring and managing the system, ensuring its proper functioning, and troubleshooting any issues that may arise.

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80. What does the GVG-110 video switcher serial interface allow?

Explanation

The GVG-110 video switcher serial interface allows for remote control of all switcher functions by a personal computer. This means that the switcher can be controlled and operated from a computer, allowing for more convenient and efficient operation.

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81. Which of the following is not a distinct layer of a hierarchical network design?

Explanation

The transport layer is not a distinct layer of a hierarchical network design. In a hierarchical network design, the layers typically include the core layer, distribution layer, and access layer. The transport layer, on the other hand, is a layer in the OSI model that is responsible for end-to-end communication and ensures reliable delivery of data across the network. It is not considered a distinct layer in the hierarchical network design model.

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82. Which type of pulse modulation is least affected by noise?

Explanation

Pulse-code modulation (PCM) is least affected by noise compared to other types of pulse modulation. In PCM, the analog signal is sampled and converted into a digital code, which is then transmitted. The digital code is less susceptible to noise interference as it can be accurately reconstructed at the receiver end. On the other hand, pulse-amplitude modulation (PAM), pulse-duration modulation (PDM), and pulse-position modulation (PPM) are more vulnerable to noise, as they directly modulate the analog signal and any noise can distort the signal. Therefore, PCM is the most robust and reliable form of pulse modulation in noisy environments.

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83. Which wave-division multiplexing technology uses uncooled lasers to reduce cost?

Explanation

Coarse wave division multiplexing (CWDM) is a wave-division multiplexing technology that uses uncooled lasers to reduce cost. Unlike dense wave division multiplexing (DWDM), which requires cooled lasers for precise wavelength control, CWDM allows the use of uncooled lasers, resulting in lower manufacturing and operational costs. By utilizing wider channel spacing, CWDM can multiplex multiple signals onto a single fiber, making it a cost-effective solution for increasing network capacity.

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84. Where are voice protection system servers installed?

Explanation

The voice protection system servers are installed in the Integrated Network and Security Center. This is the most suitable location for these servers as it ensures centralized control and management of the voice protection system. Additionally, the Integrated Network and Security Center is responsible for network security and operations, making it an ideal location for hosting these servers to ensure efficient monitoring and protection of voice communication within the network.

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85. Which common channel signaling (CCS) mode does the transfer of messages relating to signaling between two points occur directly over links interconnecting the signaling points?

Explanation

In the Associated mode of Common Channel Signaling (CCS), the transfer of messages relating to signaling between two points occurs directly over links interconnecting the signaling points. This means that the signaling messages are sent and received without any intermediate nodes or additional signaling points involved. The Associated mode is typically used in scenarios where there is a direct and dedicated link between the signaling points, allowing for efficient and reliable signaling communication.

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86. What link is used to connect the Digital Multiplex System (DMS)-core to the DMS-bus?

Explanation

The link used to connect the Digital Multiplex System (DMS)-core to the DMS-bus is DS-512.

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87. What document is the authority for the operations and maintenance agencies to procure specific devices and ancillary equipment necessary for the installation or operation of the circuit?

Explanation

The authority for operations and maintenance agencies to procure specific devices and ancillary equipment necessary for the installation or operation of the circuit is the Telecommunications Service Order. This document serves as a formal request to the telecommunications service provider to provide the required services and equipment. It outlines the details of the requested services, including the type of devices and ancillary equipment needed. The Telecommunications Service Order ensures that the agencies have the necessary resources to effectively maintain and operate the circuit.

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88. Where do incoming (unswitched) circuits transmitted to ENET enter the NT9X25A cross-point card?

Explanation

Incoming (unswitched) circuits transmitted to ENET enter the NT9X25A cross-point card through the Vertical bus (V-bus).

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89. Which is not a characteristic and capability of a voice protection system?

Explanation

Centralizing yet distributing management is not a characteristic and capability of a voice protection system. A voice protection system typically focuses on securing communications, enabling real-time notifications, and detecting and blocking inbound and outbound modem connections. Centralizing yet distributing management refers to a different capability, possibly related to network or system management, but not specifically related to voice protection.

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90. What is the maximum length of the vertical taut-wire sensor (VTWS)?

Explanation

The maximum length of the vertical taut-wire sensor (VTWS) is 328 feet.

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91. Which office or system confirms a restoration priority?

Explanation

The National Communications System (NCS) is responsible for confirming a restoration priority. The NCS coordinates and prioritizes the restoration of critical telecommunications services during emergencies or disasters. They work closely with various government agencies and service providers to ensure that communication systems are restored in a timely and efficient manner, with priority given to essential services such as emergency response, public safety, and national security.

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92. The vulnerabilities of voice and data converged networks were highlighted in a report released by the

Explanation

The President's National Security Telecommunications Advisory Committee released a report that emphasized the vulnerabilities of voice and data converged networks. This suggests that the committee conducted research and analysis on the subject, identifying potential weaknesses and risks in these types of networks. The report likely provides recommendations and insights on how to address these vulnerabilities to ensure the security of national telecommunications and information systems.

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93. Which publication lists the methods used to identify systems, links, trunks and circuits?

Explanation

The correct answer is DISAC 310-65-1. This publication specifically lists the methods used to identify systems, links, trunks, and circuits. The other options do not pertain to this specific topic.

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94. What is the secondary mode of detection for the microwave fence sensor? 

Explanation

The secondary mode of detection for the microwave fence sensor is multipath reflection. This refers to the phenomenon where the microwave signal emitted by the sensor reflects off objects or surfaces in its path, causing multiple signals to be received at the sensor. By analyzing the characteristics of these reflected signals, the sensor can detect the presence or movement of objects near the fence.

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95. What names are given to the shifted R-Y and B-Y signals, respectively?

Explanation

The shifted R-Y and B-Y signals are commonly referred to as I (in-phase) and Q (quadrature) signals. These signals represent the color information in a video signal, with the I signal carrying the in-phase information and the Q signal carrying the quadrature information.

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96. Which DD form do you use for an official narrative log that is often used to brief unit commanders?

Explanation

not-available-via-ai

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97. Which data communication protocol is a transmission code that supports a variety of link types and topologies?

Explanation

SDLC is a data communication protocol that supports various link types and topologies. It is a synchronous protocol, meaning that data is transmitted in a continuous stream without any gaps or delays. SDLC is widely used in telecommunications and computer networks for its reliability and efficiency. It provides error checking and correction mechanisms, as well as flow control and synchronization capabilities. With its versatility and compatibility with different link types and topologies, SDLC is a suitable choice for data communication in various environments.

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98. What is the maximum detection distance in meters of an Infrared Pulse Intrusion Detection System (IPIDS)

Explanation

An Infrared Pulse Intrusion Detection System (IPIDS) has a maximum detection distance of 80 meters. This means that the system can detect any intrusions within a range of up to 80 meters. Beyond this distance, the system may not be able to accurately detect and alert any potential intrusions.

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99. Which elements make up the control component of the SuperNode central control?

Explanation

The control component of the SuperNode central control is made up of the computing mode (CM) and the system load module (SLM). These elements are responsible for managing and controlling the overall operation of the SuperNode system. The computing mode determines the mode of operation, while the system load module monitors and manages the system's workload to ensure efficient performance.

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100. Which digital broadcast system was adopted by the United States as the standard?

Explanation

The correct answer is Advanced Television Systems Committee. The Advanced Television Systems Committee (ATSC) is the digital broadcast system that was adopted by the United States as the standard. ATSC is responsible for developing and implementing the standards for digital television transmission in the United States, including HDTV.

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101. How many serial data interface ports does the Meridian Option 11C Small System Controller have?

Explanation

The Meridian Option 11C Small System Controller has 3 serial data interface ports.

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102. Which Digital Multiplex System (DMS)-100 database facility provides facilities for preserving data modifications orders (DMO) on tape or disk so that data tables can be restored if the system fails?

Explanation

The correct answer is Journal file. In a Digital Multiplex System (DMS)-100 database facility, the journal file provides facilities for preserving data modifications orders (DMO) on tape or disk. This allows for the restoration of data tables in the event of a system failure. The journal file essentially acts as a record of all changes made to the database, ensuring that no data is lost and providing a means to recover the system if necessary.

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103. Which test results do you record on the reverse/back side of the DD Form 1697–Analog?

Explanation

The correct answer is Frequency response and envelope delay. The DD Form 1697-Analog is used to record test results for analog circuits. Frequency response refers to the measurement of how a circuit or device responds to different frequencies, indicating its ability to accurately reproduce the input signal across the frequency spectrum. Envelope delay measures the time it takes for a signal to pass through a circuit or device, indicating any delays or distortions in the signal. These two parameters are important in assessing the performance and quality of analog circuits, hence they are recorded on the reverse/back side of the DD Form 1697-Analog.

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104. Which agency has responsibility for a circuit end-to-end?

Explanation

The Circuit Control Office (CCO) is responsible for managing a circuit end-to-end. They oversee the entire circuit, ensuring its proper functioning and addressing any issues that may arise. The Defense Information Systems Agency (DISA) is a government agency that provides information technology and communications support to the military. The Network Control Center (NCC) is responsible for monitoring and controlling network operations. The Node Side Coordinator (NSC) is not a recognized agency in the context of circuit management.

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105. Which basic circuit in the video distribution amplifier consists of two transistors that form the upper leg of a totem pole circuit?

Explanation

The output driver is the basic circuit in the video distribution amplifier that consists of two transistors forming the upper leg of a totem pole circuit. It is responsible for driving the output signal and maintaining the desired voltage levels. This circuit helps to amplify and shape the signal before sending it to the output device, ensuring proper signal transmission and quality.

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106. When you must restore user service by rerouting, what is the second type of circuit you preempt?

Explanation

When you need to restore user service by rerouting, the second type of circuit you preempt is the nonactive on-call circuits. This means that you prioritize and take control of circuits that are not currently in use but are reserved for potential future use. By preempting these circuits, you can quickly reroute user service and ensure minimal disruption to their connectivity.

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107. Which form of modulation is insensitive to signal variations?

Explanation

Binary-phase shift keying (BPSK) is a form of modulation that is insensitive to signal variations. BPSK encodes data by shifting the phase of the carrier signal by 180 degrees for a binary 1 and no phase shift for a binary 0. This means that the amplitude and frequency of the carrier signal remain constant, making it less susceptible to variations in the signal. In contrast, delta modulation, frequency shift keying, and pulse-amplitude modulation are all sensitive to signal variations in different ways.

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108. Which Digital Multiplex System (DMS)-100 database facility provides facilities for storing data modifications orders (DMO) and for retrieving them at a specified time for execution?

Explanation

The correct answer is the pending order file. The pending order file is a facility within the DMS-100 database that allows for the storage of data modification orders (DMO) and retrieval of these orders at a specified time for execution. This file is used to keep track of pending orders and ensure that they are executed at the appropriate time.

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109. Digital coding techniques such as binary with eight-zero substitution (B8ZS) are becoming more popular because they are designed to

Explanation

Digital coding techniques such as binary with eight-zero substitution (B8ZS) are designed to maintain ones density standards. Ones density refers to the number of consecutive ones in a digital signal. Maintaining ones density is important in telecommunications because it helps to ensure that the signal is properly synchronized and that data can be accurately transmitted and received. B8ZS is a coding technique that replaces sequences of eight zeros with specific patterns of ones and zeros, which helps to maintain ones density and prevent errors in the transmission of data.

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110. On a router's serial interface connection, what provides the timing signal for the communication link?

Explanation

Data communications equipment provides the timing signal for the communication link on a router's serial interface connection. This equipment is responsible for transmitting and receiving data over the network, and it also ensures that the timing of the data transmission is synchronized between the sender and receiver. By providing the timing signal, the data communications equipment ensures that the data is transmitted and received accurately and in a timely manner, allowing for efficient communication between devices on the network.

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111. What is the maximum length of the Y taut-wire sensor (YTWS)

Explanation

The maximum length of the Y taut-wire sensor (YTWS) is 200 feet. This means that the sensor can measure distances up to 200 feet accurately. It is important to note that any length beyond this limit may result in inaccurate measurements or failure of the sensor to function properly.

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112. What data communication protocol uses characters or "handshaking" to control the link and represent information?

Explanation

Binary synchronous protocol is a data communication protocol that uses characters or "handshaking" to control the link and represent information. This protocol ensures reliable and error-free transmission of data by using start and stop bits to frame data packets and by implementing error checking mechanisms. It also incorporates flow control techniques to regulate the flow of data between the sender and receiver.

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113. During the initial research for voice system security, who recognized that the most common security threats could be addressed by voice protection system?

Explanation

The Air Force Information Warfare Battle Lab recognized that the most common security threats could be addressed by voice protection system.

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114. How many sensors does a taut-wire system in the Y taut-wire sensor (YTWS) configuration contain?

Explanation

A taut-wire system in the Y taut-wire sensor (YTWS) configuration contains 12 sensors.

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115. How many broadcast domains forms a Virtual LAN (VLAN)?

Explanation

A Virtual LAN (VLAN) is a logical grouping of devices on a network, regardless of their physical locations. It allows for the segmentation of a network into multiple broadcast domains. In this case, the correct answer is 2 because a VLAN creates two broadcast domains - one for devices within the VLAN and another for devices outside of the VLAN. This segregation helps to improve network performance, security, and manageability.

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116. How is supervisory signaling information transferred in common channel signaling (CCS)?

Explanation

Supervisory signaling information is transferred in common channel signaling (CCS) through a separate network channel. This means that the signaling information is transmitted separately from the voice or data traffic, ensuring that it does not interfere or disrupt the main communication channel. By using a separate network channel, CCS allows for efficient and reliable transfer of supervisory signaling information, enabling effective control and management of the communication system.

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117. How many vertical taut-wire sensor (VTWS) sectors can be serviced per field distribution box (FDB)?

Explanation

Each field distribution box (FDB) can service 2 vertical taut-wire sensor (VTWS) sectors.

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118. The GVG-110 video switcher effects key fills with

Explanation

The GVG-110 video switcher effects key fills with either the key bus video or an internally-generated color matte signal. This means that the video switcher can use either the video signal from the key bus or a pre-generated color matte signal as the fill for the effects key. The fill is the content that will be displayed in the area defined by the key signal.

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119. The total number of effects storage registers in the GVG-110 video switcher is 

Explanation

The GVG-110 video switcher has 16 effects storage registers. This means that it can store and recall up to 16 different effects, allowing for a wide range of creative possibilities in video editing and production. Having more storage registers provides greater flexibility and convenience for users, as they can easily access and apply different effects without the need for manual adjustments or reconfigurations.

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120. Who determines if Preventative Maintenance Inspections (PMI) are accomplished when commercial manuals or publications are not available?

Explanation

The manufacturer determines if Preventative Maintenance Inspections (PMI) are accomplished when commercial manuals or publications are not available because they have the expertise and knowledge about the specific equipment or system being inspected. They are responsible for designing, manufacturing, and providing instructions for maintenance and inspections of their products. Therefore, they are the most reliable source for determining the procedures and requirements for PMIs in the absence of commercial manuals or publications.

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121. How many selectable frequencies are obtainable with a SD80DC microwave sensor?

Explanation

The SD80DC microwave sensor is capable of providing 10 selectable frequencies.

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122. The form of pulse modulation in which a discrete pulse is varied within a range of positions is known as

Explanation

Pulse-code modulation is a form of pulse modulation where a discrete pulse is varied within a range of positions. This technique is commonly used in digital communication systems to convert analog signals into digital format by assigning a specific code to each amplitude level of the signal. This allows for efficient transmission and storage of the signal, as well as easy decoding at the receiving end.

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123. What does the AN/GSS-39(V) system use to monitor the integrity of all sensor wiring to the control panel?

Explanation

The AN/GSS-39(V) system uses a zone indicator plate to monitor the integrity of all sensor wiring to the control panel. This plate provides visual indication of the status of each zone, allowing the operator to quickly identify any faults or tampering in the sensor wiring. It is a crucial component in ensuring the system's reliability and effectiveness in monitoring and detecting any security breaches.

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124. The signaling equipment has three types of communications signals that functions to

Explanation

The signaling equipment has three types of communication signals that function to process switch addressing. This means that the signals are responsible for handling the addressing of switches, which is crucial for the proper functioning of the equipment. By processing switch addressing, the signaling equipment can ensure that calls are routed correctly and efficiently. This is an essential aspect of the equipment's operation, as it directly affects the overall performance and effectiveness of the communication system.

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Which topology has the stations connected in the form of a circle?
Which topology combines two or more different physical topologies in a...
The three cornerstones of voice network system security are...
A Management Information Base (MIB) is a collection of information...
Which data communication protocol is based on bits and the position of...
Internet protocol version 6 (IPv6) addresses are represented by
Which topology defines the way in which devices communicate and data...
In what type of digital signal does the signal level move to one of...
In binary-synchronous protocol, which characters establishes and...
Which network layer protocol matches a known Internet protocol (IP)...
What should security policies encompass to help mitigate the threat of...
Which of the following is an example of a video compression standard?
What is most commonly used in data systems to express signaling speed?
Which device subdivides a network into smaller logical pieces, or...
The time it takes a switch to figure out where to forward a data unit...
Which statement best describes a binary with eight-zero substitution...
In the Open System Interconnect (OSI) model, a layer will communicate...
What allows transportation of all active Virtual LANs (VLAN) between...
What identifier differentiates one wireless local area network (WLAN)...
What are attempts to gain access to a switch system by posing as an...
Which Application layer protocol is used to synchronize the clocks of...
What type alarm occurs if the sensor post cover in vertical taut-wire...
Which router port is used for initial configuration?
Which agency is the preferred transport provider for Internet and...
Virtual Private Networks (VPNs) allow the AF to extend network...
In an Intrusion Detection System (IDS) what is the main purpose of a...
The basic configuration of the entry control facility includes a 
Which Network layer protocol provides messaging that can help with...
Which Transport layer protocol provides reliable data delivery...
Which routing protocol do internet backbones use?
When configuring a router, you control access to privileged EXEC mode...
The primary reason you should measure the voltage across faulty...
How many voltage levels does a binary signal have?
How many bits are in the extended superframe format (ESF) framing...
Trend analysis is a program that ensures circuits meet management...
The signal components that occur as bands above and below a carrier...
Which network Class has the most addresses for hosts?
How many subnet bits are required to support 90 subnets on a Class B...
In an Intrusion Detection System (IDS) what must a line of detection...
Simple Network Management Protocol (SNMP) is a tool used by network...
In general, you should deny direct dial-in access to a network device...
If the circuit files are lost or destroyed, what document are...
Within how many normal duty hours of completion action on the...
Combined distribution frames encompass the functions of a main...
What do Global Positioning System (GPS) satellites use to provide very...
Which device has multiport connectivity that directs data between...
In common associated signaling (CAS), what is the seventh bit in...
Which physical security action can you take to ensure network...
What is the process, or result of the process, of modifying (varying)...
Which interior intrusion detection system (IIDS) sensor uses heat...
Which stratum level is a Global Positioning System (GPS) timing...
Which communications control signal uses a two-frequency dialing...
Individual pulses within a digital signal are
Which Institute of Electrical Electronics Engineers (IEEE)...
Which Digital Multiplex System (DMS)-100 database facility is...
To prevent frequency modulation (FM) radio stations from interfering...
What provides enterprise wide visibility into telecom resource...
What web application is used to order telecommunications products and...
Which of the following will minimize EtherChannel configuration...
Teredo has four tunneling components. Which one is not one of them?
Which option is a characteristic of synchronous data operation?
Which wireless design phase accounts for the amount of users on the...
What report must be sent if the circuit does not meet all required...
What are the two major types of frame structures?
Which form of multiplexing is very susceptible to signal...
When a telephone network is circuit switched, each call
At what Open System Interconnection (OSI) layer are virtual circuits...
Which DD form is used as the primary source of information when...
Which interior intrusion detection system is designed to detect...
In Integrated Services Digital Network (ISDN), the "B"...
The method of multiplexing the T1 multiplexer uses is
If a circuit fails its management threshold, what test might be...
Who is responsible for all circuits within their facility up to the...
Which is not a component of the voice protection system architecture?
A digital signal that contains synchronizing bits within the signal...
What type of signal is sent to the fence protection system (FPS)...
To create a better timing environment in communications networks,...
What is the maximum number of ports that a Meridian System Logic -100...
What Digital Multiplex System (DMS)-100 system contains subsystems for...
What does the GVG-110 video switcher serial interface allow?
Which of the following is not a distinct layer of a hierarchical...
Which type of pulse modulation is least affected by noise?
Which wave-division multiplexing technology uses uncooled lasers to...
Where are voice protection system servers installed?
Which common channel signaling (CCS) mode does the transfer of...
What link is used to connect the Digital Multiplex System (DMS)-core...
What document is the authority for the operations and maintenance...
Where do incoming (unswitched) circuits transmitted to ENET enter the...
Which is not a characteristic and capability of a voice protection...
What is the maximum length of the vertical taut-wire sensor (VTWS)?
Which office or system confirms a restoration priority?
The vulnerabilities of voice and data converged networks were...
Which publication lists the methods used to identify systems, links,...
What is the secondary mode of detection for the microwave fence...
What names are given to the shifted R-Y and B-Y signals, respectively?
Which DD form do you use for an official narrative log that is often...
Which data communication protocol is a transmission code that supports...
What is the maximum detection distance in meters of an Infrared Pulse...
Which elements make up the control component of the SuperNode central...
Which digital broadcast system was adopted by the United States as the...
How many serial data interface ports does the Meridian Option 11C...
Which Digital Multiplex System (DMS)-100 database facility provides...
Which test results do you record on the reverse/back side of the DD...
Which agency has responsibility for a circuit end-to-end?
Which basic circuit in the video distribution amplifier consists of...
When you must restore user service by rerouting, what is the second...
Which form of modulation is insensitive to signal variations?
Which Digital Multiplex System (DMS)-100 database facility provides...
Digital coding techniques such as binary with eight-zero substitution...
On a router's serial interface connection, what provides the timing...
What is the maximum length of the Y taut-wire sensor (YTWS)
What data communication protocol uses characters or...
During the initial research for voice system security, who recognized...
How many sensors does a taut-wire system in the Y taut-wire sensor...
How many broadcast domains forms a Virtual LAN (VLAN)?
How is supervisory signaling information transferred in common channel...
How many vertical taut-wire sensor (VTWS) sectors can be serviced per...
The GVG-110 video switcher effects key fills with
The total number of effects storage registers in the GVG-110 video...
Who determines if Preventative Maintenance Inspections (PMI) are...
How many selectable frequencies are obtainable with a SD80DC microwave...
The form of pulse modulation in which a discrete pulse is varied...
What does the AN/GSS-39(V) system use to monitor the integrity of all...
The signaling equipment has three types of communications signals that...
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