3d0x1 CDC Vol 2

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  • 1/124 Questions

    What topology defines the way in which devices communicate, and data is transmitted, throughout the network?

    • Physical.
    • Logical.
    • Star.
    • Hybrid.
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About This Quiz

This quiz, titled '3d0x1 CDC vol 2,' assesses knowledge of the OSI Model, focusing on layers, their functions, and the devices operating at each layer. It is crucial for understanding network structure and enhancing communication systems skills.

3d0x1 CDC Vol 2 - Quiz

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  • 2. 

    Which network protocol has the Department of Defense chosen as its standard to govern the flow of information?

    • AppleTalk.

    • NetBios Extended User Interface.

    • Transport Control Protocol/Internet Protocol.

    • Intemetwork Packet Exchange! Sequenced Packet Exchange.

    Correct Answer
    A. Transport Control Protocol/Internet Protocol.
    Explanation
    The Department of Defense has chosen the Transport Control Protocol/Internet Protocol (TCP/IP) as its standard network protocol to govern the flow of information. TCP/IP is a widely used protocol suite that enables communication between devices on the internet. It provides reliable and secure transmission of data, ensuring that information flows efficiently and securely within the Department of Defense network.

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  • 3. 

    What rule establishes the percent of data that should be local to a segment and the percentage of data that should be destined to traverse a bridge to the other segment?

    • 90/10 rule

    • 80/20 rule

    • 70/30 rule

    • 60/40 rule

    Correct Answer
    A. 80/20 rule
    Explanation
    The 80/20 rule is a principle that states that 80% of the data should be local to a segment, while 20% of the data should be destined to traverse a bridge to the other segment. This rule helps in determining the optimal distribution of data within a network, ensuring that a majority of the data stays within a segment for efficient and fast communication, while allowing a smaller portion to be transmitted across segments when necessary.

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  • 4. 

    The path between the operating system and virtually all hardware not on the computer’s motherboard goes through a special program called a

    • Director.

    • Deliver.

    • Driver.

    • Sender.

    Correct Answer
    A. Driver.
    Explanation
    A driver is a special program that acts as a bridge between the operating system and hardware devices that are not on the computer's motherboard. It allows the operating system to communicate with and control these external hardware devices by providing the necessary instructions and protocols. Without a driver, the operating system would not be able to interact with or utilize these hardware devices effectively.

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  • 5. 

    Which condition permits non-essential networks to be taken offline and substituted with alternate methods of communication?

    • INFOCON 2.

    • INFOCON 3.

    • INFOCON 4.

    • INFOCON 5.

    Correct Answer
    A. INFOCON 2.
    Explanation
    INFOCON 2 is the correct answer because it signifies a moderate level of readiness and indicates that there is a significant risk of attack or compromise. In this condition, non-essential networks can be taken offline and replaced with alternative methods of communication in order to minimize the risk and protect critical systems. This allows for a proactive approach to security and ensures that essential communication channels remain operational in the event of a threat.

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  • 6. 

    What was the first disk operating system developed to operate on a wide range of computer systems?

    • C- Plus.

    • UNIX.

    • Fortran.

    • Windows.

    Correct Answer
    A. UNIX.
    Explanation
    UNIX was the first disk operating system developed to operate on a wide range of computer systems. It was designed to be portable and compatible with different hardware architectures, which allowed it to be used on various computer systems. This made UNIX a versatile and widely adopted operating system in the early days of computing.

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  • 7. 

    What concerns slowed the military’s adoption of wireless network technology?

    • Speed and reliability.

    • Security and reliability.

    • Reliability and maintenance.

    • Certification and interoperability.

    Correct Answer
    A. Security and reliability.
    Explanation
    The military's adoption of wireless network technology was slowed by concerns regarding both security and reliability. Security is a major concern for the military as they need to ensure that their wireless networks are protected from unauthorized access and potential cyber attacks. Reliability is also crucial as the military heavily relies on communication systems for their operations, and any disruptions or failures in the wireless networks could have serious consequences. Therefore, the military had to address these concerns before fully adopting wireless network technology.

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  • 8. 

    When a risk of a network system attack has been identified, which condition requires all unclassified dial- up connections be disconnected?

    • INFOCON 2.

    • INFOCON 3.

    • INFOCON 4.

    • INFOCON 5.

    Correct Answer
    A. INFOCON 3.
    Explanation
    When a risk of a network system attack has been identified, INFOCON 3 requires all unclassified dial-up connections to be disconnected. INFOCON is a system used by the military to assess and communicate the current risk level of potential network attacks. INFOCON 3 signifies an increased risk level where there is a significant threat to the network system, and as a precautionary measure, all unclassified dial-up connections need to be disconnected to mitigate the potential risk and protect the network from further attacks.

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  • 9. 

    What is a formal set ofrules and conventions that govern how computers exchange information over a network medium?

    • Specification.

    • Standard.

    • Etiquette.

    • Protocol.

    Correct Answer
    A. Protocol.
    Explanation
    A protocol is a formal set of rules and conventions that govern how computers exchange information over a network medium. It defines the format, timing, sequencing, and error control of data transmission. It ensures that devices can communicate with each other effectively and efficiently by establishing a common language and set of procedures. A specification refers to a detailed description of how a particular system should be implemented, while a standard is a set of guidelines or criteria that define a certain level of quality or compatibility. Etiquette refers to polite behavior or customs, which is not directly related to computer network communication.

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  • 10. 

    What topology consists of devices connected to a common, shared cable?

    • Bus.

    • Ring.

    • Star.

    • Hybrid.

    Correct Answer
    A. Bus.
    Explanation
    The correct answer is "Bus". In a bus topology, devices are connected to a common cable called the bus. This cable acts as a communication medium, allowing devices to transmit and receive data. Each device on the bus can access the data transmitted by other devices on the same cable. This topology is relatively simple and inexpensive to implement, but it can be prone to single point failures if the main cable is damaged or disconnected.

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  • 11. 

    What topology consists of cable segments from each computer connected to a centralized component?

    • Bus

    • Ring.

    • Star.

    • Hybrid.

    Correct Answer
    A. Star.
    Explanation
    A star topology consists of cable segments from each computer connected to a centralized component, usually a switch or hub. In this topology, all communication between computers is routed through this central component, which helps to manage and control the network traffic. This type of topology provides better performance and reliability compared to bus or ring topologies, as it allows for easier troubleshooting and isolation of network issues.

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  • 12. 

    What topology combines two or more different physical topologies in a single network?

    • Bus

    • Ring

    • Star

    • Hybrid

    Correct Answer
    A. Hybrid
    Explanation
    A hybrid topology combines two or more different physical topologies in a single network. This means that a network using a hybrid topology can have a combination of bus, ring, star, or other topologies. This allows for more flexibility and scalability in designing the network, as different topologies can be used to suit different needs or requirements.

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  • 13. 

    What topology defines the layout of a network’s devices and media?

    • Physical.

    • Logical.

    • Star.

    • Hybrid.

    Correct Answer
    A. Physical.
    Explanation
    The correct answer is physical because the physical topology refers to the actual layout of devices and media in a network. It describes how devices are physically connected to each other and to the network media, such as cables or wireless connections. This includes the arrangement of devices, the types of cables used, and the location of devices within the network. In contrast, the logical topology refers to how data flows within the network and is independent of the physical layout. The star and hybrid topologies are examples of physical topologies.

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  • 14. 

    Using a range of 1—126 in the first octet of an lPv4 address, what class does it belong to?

    • Class A.

    • Class B.

    • Class C.

    • Class D.

    Correct Answer
    A. Class A.
    Explanation
    An IPv4 address is divided into different classes based on the range of the first octet. Class A addresses have a range of 1-126 in the first octet, which means that any IP address starting with a number between 1 and 126 belongs to Class A.

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  • 15. 

    The ability to move about without being tethered by wires in wireless technology is called

    • Mobility.

    • Ease of installations.

    • War driving.

    • Motion capture technology.

    Correct Answer
    A. Mobility.
    Explanation
    The correct answer is mobility because wireless technology allows for freedom of movement without the need for physical connections or wires. This enables users to move around and access devices or networks without being tethered to a specific location.

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  • 16. 

    What encryption device may you rarely see due to its lower maximum data rate?

    • TSEC/KIV—7.

    • TSEC/KIV—19.

    • TSEC/KG—84.

    • TSEC/KG—194.

    Correct Answer
    A. TSEC/KIV—7.
    Explanation
    The TSEC/KIV-7 is a encryption device that is rarely seen due to its lower maximum data rate. This suggests that the device is not commonly used because it is not capable of handling high volumes of data quickly. The other options, TSEC/KIV-19, TSEC/KG-84, and TSEC/KG-194, are not mentioned as being limited by their data rate, so they are more likely to be used in situations where higher data rates are required.

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  • 17. 

    The classification of a fill device is

    • Classified when taken out of a safe.

    • Classified as SECRET when the key has been unloaded.

    • Unclassified when put back in the safe after a key has been loaded into it.

    • Classified as soon as a key is loaded, and holds the classification of the loaded key.

    Correct Answer
    A. Classified as soon as a key is loaded, and holds the classification of the loaded key.
    Explanation
    When a fill device is loaded with a key, it becomes classified. The classification of the fill device is determined by the classification of the loaded key. This means that if a fill device is loaded with a key that is classified as SECRET, the fill device will also be classified as SECRET. The classification of the fill device remains the same until the key is unloaded. Therefore, the correct answer is that a fill device is classified as soon as a key is loaded, and it holds the classification of the loaded key.

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  • 18. 

    What are two anti-virus programs that the Air Force uses?

    • Norton and Horton.

    • Horton and McAfee.

    • Norton and McAfee.

    • McAfee and Lotus Pro.

    Correct Answer
    A. Norton and McAfee.
    Explanation
    The Air Force uses Norton and McAfee as their two anti-virus programs.

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  • 19. 

    The Institute of Electrical and Electronics Engineers divide the Open System Interconnect Data Link Layers into what two sublayers?

    • High Level Data Link Control and Synchronous Data Link Control.

    • Logical Link Control and Media Access Control.

    • Distance Vector and Link State.

    • RS—232 and RS—530

    Correct Answer
    A. Logical Link Control and Media Access Control.
    Explanation
    The correct answer is Logical Link Control and Media Access Control. The Open System Interconnect (OSI) Data Link Layer is divided into these two sublayers. The Logical Link Control (LLC) sublayer handles error control and flow control, ensuring reliable data transmission. The Media Access Control (MAC) sublayer is responsible for managing access to the physical media, such as Ethernet or Wi-Fi, and handles addressing and data transmission between devices on the network. These two sublayers work together to provide a reliable and efficient data link between network devices.

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  • 20. 

    What type of network connects networks that are typically separated by geographical distances between cities, states, countries, or around the world?

    • Local Area Network.

    • Wide Area Network.

    • Virtual Private Network.

    • Metropolitan Area Network.

    Correct Answer
    A. Wide Area Network.
    Explanation
    A Wide Area Network (WAN) is the correct answer because it connects networks that are typically separated by geographical distances. WANs are used to connect networks across cities, states, countries, or even globally, allowing for communication and data transfer between different locations. In contrast, a Local Area Network (LAN) connects devices within a limited area, such as a home, office, or building. A Virtual Private Network (VPN) is a secure network connection that allows remote users to access a private network over the internet. A Metropolitan Area Network (MAN) connects networks within a specific geographic area, such as a city or town.

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  • 21. 

    What type of network makes use of tunneling and security protocols to enables a group of two or more computer systems to communicate over the public Internet?

    • Local Area Network.

    • Wide Area Network.

    • Virtual Private Network.

    • Metropolitan Area Network.

    Correct Answer
    A. Virtual Private Network.
    Explanation
    A Virtual Private Network (VPN) makes use of tunneling and security protocols to enable a group of two or more computer systems to communicate over the public Internet. VPNs create a secure and encrypted connection between the computers, allowing them to send and receive data as if they were directly connected to a private network. This ensures that the communication remains private and protected from unauthorized access or interception.

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  • 22. 

    How many bits are in an IPv4 address?

    • 16 bits.

    • 32 bits.

    • 64 bits.

    • 128 bits.

    Correct Answer
    A. 32 bits.
    Explanation
    An IPv4 address is made up of 32 bits. This means that it consists of a sequence of 32 binary digits (0s and 1s). Each bit represents a binary value and together they form the unique address for a device on a network. The use of 32 bits allows for a total of 4,294,967,296 unique addresses in the IPv4 addressing system.

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  • 23. 

    What IPv4 reserved address is used for loop back?

    • 0.0.0.0.

    • 127.0.0.1.

    • 207.55.157.255.

    • 255.255.255.255.

    Correct Answer
    A. 127.0.0.1.
    Explanation
    The loopback address is a reserved IPv4 address used to test network connectivity on a local machine. It allows a device to send and receive data to itself. The loopback address is represented by the IP address 127.0.0.1, which is the correct answer in this case. The other options are not loopback addresses.

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  • 24. 

    What is a mechanism that allows a network device to divide an IP address into a network and host number?

    • Subnet mask.

    • Broadcast.

    • Multicast.

    • Subnet.

    Correct Answer
    A. Subnet mask.
    Explanation
    A subnet mask is a mechanism that allows a network device to divide an IP address into a network and host number. It is used to determine which part of the IP address represents the network and which part represents the host. The subnet mask is applied to the IP address using a bitwise AND operation, which effectively separates the network and host portions of the address. This allows the device to route packets correctly within the network and identify the appropriate destination for each packet.

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  • 25. 

    The computing part of the computer is the central processing unit, also called the

    • Control unit.

    • Minicomputer.

    • Microprocessor.

    • Arithmetic logic unit.

    Correct Answer
    A. Microprocessor.
    Explanation
    The computing part of the computer is referred to as the microprocessor. The microprocessor is responsible for executing instructions and performing calculations. It is often considered the brain of the computer, as it controls and coordinates all the activities of the computer's hardware and software components. The control unit, arithmetic logic unit, and minicomputer are not the correct answers as they do not accurately describe the computing part of the computer.

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  • 26. 

    Which of the following is not one the four security threats to Wireless Local Area Network?

    • Rogue Access Points.

    • Direct Connections.

    • War Drivers.

    • Hackers.

    Correct Answer
    A. Direct Connections.
    Explanation
    Direct Connections is not one of the four security threats to Wireless Local Area Network. Rogue Access Points, War Drivers, and Hackers are all potential security threats to WLANs. Direct Connections refers to devices that are physically connected to the network, rather than accessing it wirelessly. While direct connections can still pose security risks, they are not specifically categorized as a threat to WLANs.

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  • 27. 

    Who is an authorized client that may unknowingly or maliciously help outside parties gain access to a network?

    • Auditor.

    • Employee.

    • War Driver.

    • Hacker.

    Correct Answer
    A. Employee.
    Explanation
    An employee is an authorized client who may unknowingly or maliciously help outside parties gain access to a network. As an insider, an employee has access to sensitive information and network resources, making them a potential threat if they misuse their privileges or fall victim to social engineering tactics. Whether intentionally or unintentionally, an employee can compromise the security of a network by sharing login credentials, downloading malware, or falling for phishing scams, allowing unauthorized individuals to gain access. Hence, employees need to be educated and trained on cybersecurity best practices to minimize the risk of such incidents.

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  • 28. 

    What do you apply across Liquid Crystal Display material to change the alignment and light polarizing property?

    • Current.

    • Voltage.

    • Resistance.

    • Inductance.

    Correct Answer
    A. Voltage.
    Explanation
    To change the alignment and light polarizing property of Liquid Crystal Display (LCD) material, voltage is applied across it. The application of voltage causes the liquid crystal molecules to reorient themselves, which in turn changes the alignment of the material. This change in alignment affects the polarization of light passing through the LCD, allowing for the control of the display's brightness and color.

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  • 29. 

    What do routing algorithms initialize and maintain to aid the process of path determination?

    • Routing times.

    • Routing tables.

    • Longest routes.

    • Shortest routes.

    Correct Answer
    A. Routing tables.
    Explanation
    Routing algorithms initialize and maintain routing tables to aid the process of path determination. Routing tables contain information about the available paths, such as the next hop and the cost associated with each path. By referencing these tables, routing algorithms can determine the best path for forwarding packets to their destination. Routing tables are continuously updated and maintained to adapt to changes in network topology and ensure efficient routing.

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  • 30. 

    What encryption device is certified to secure all classification levels and categories and is able to encrypt trunk-level high-speed circuits?

    • TSEC/KIV-7.

    • TSEC/KIV—7HS.

    • TSEC/KIV-7HSA.

    • TSEC/KIV—19.

    Correct Answer
    A. TSEC/KIV—19.
    Explanation
    The TSEC/KIV-19 encryption device is certified to secure all classification levels and categories and is capable of encrypting trunk-level high-speed circuits. This device is specifically designed for high-speed encryption and is suitable for securing sensitive information across various levels and categories of classification.

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  • 31. 

    Applications are software programs designed to perform what type of tasks?

    • Specific.

    • General.

    • Special.

    • Broad.

    Correct Answer
    A. Specific.
    Explanation
    Applications are software programs that are designed to perform specific tasks. They are created with a particular purpose in mind and are tailored to meet the needs of a specific user or group of users. Unlike general software programs, which are designed to be versatile and perform a wide range of tasks, applications are focused on providing specific functionalities and solving specific problems. Therefore, the correct answer is "specific".

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  • 32. 

    What Open System Interconnect layer is closest to the end user?

    • Application.

    • Session.

    • Presentation.

    • Transport.

    Correct Answer
    A. Application.
    Explanation
    The Open System Interconnect (OSI) model consists of seven layers, with the application layer being the closest to the end user. This layer is responsible for providing services directly to user applications, such as email, web browsers, and file transfer protocols. It interacts with the user and provides a means for accessing network resources. Therefore, the correct answer is Application.

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  • 33. 

    Instead of using binary, how are IPv4 addresses expressed to be more user-friendly?

    • Colon Hexadecimal Format.

    • Dotted Decimal Notation.

    • Hexadecimal.

    • Octal.

    Correct Answer
    A. Dotted Decimal Notation.
    Explanation
    IPv4 addresses are expressed in dotted decimal notation to make them more user-friendly. In this format, the address is divided into four octets, each represented by a decimal number separated by dots. This notation is easier for users to read and understand compared to binary, hexadecimal, or octal formats.

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  • 34. 

    What lPv4 class address is used for networks with about 250 nodes?

    • Class C.

    • Class D.

    • Class E.

    • Class F.

    Correct Answer
    A. Class C.
    Explanation
    Class C is the correct answer because it is designated for networks with approximately 250 nodes. Class C addresses have a range of 192.0.0.0 to 223.255.255.255, allowing for up to 2^24 (16,777,216) unique addresses. This provides enough addresses to accommodate a network with around 250 nodes. Class D is used for multicast addresses, Class E is reserved for experimental purposes, and Class F is currently unassigned.

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  • 35. 

    What LPv4 class address is used for multicast addressing?

    • Class C.

    • Class D.

    • Class E.

    • Class F.

    Correct Answer
    A. Class D.
    Explanation
    Class D is used for multicast addressing in IPv4. Class D addresses range from 224.0.0.0 to 239.255.255.255. Multicast addresses are used to send packets to a group of hosts rather than a single host. This allows for efficient distribution of data to multiple recipients simultaneously. Class C addresses are used for regular IP addressing, while Class E addresses are reserved for future use. Class F does not exist in IPv4.

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  • 36. 

    What notation is expressed in zero compression for lPv6?

    • 1234:1234:0:0:1234:0:0:1234.

    • 10AB::3:0:1234:5678.

    • 255.255.255.255.

    • 127.0.0.1.

    Correct Answer
    A. 10AB::3:0:1234:5678.
    Explanation
    The correct answer is 10AB::3:0:1234:5678.

    This notation represents the zero compression in IPv6. The "::" indicates that a series of consecutive zeros have been compressed. In this case, the zeros between "3" and "1234" have been compressed. This notation helps to shorten the IPv6 address and make it more readable.

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  • 37. 

    Which landline transmission medium is the primary carrier of voice communications?

    • Twisted pair cable.

    • Fiber optic cable.

    • Coaxial cable.

    • Twinax cable.

    Correct Answer
    A. Twisted pair cable.
    Explanation
    Twisted pair cable is the primary carrier of voice communications because it is a widely used and cost-effective transmission medium. It consists of two insulated copper wires twisted together, which helps to reduce electromagnetic interference. Twisted pair cable is capable of transmitting voice signals effectively over short to medium distances, making it suitable for landline telephone systems. Fiber optic cable, coaxial cable, and twinax cable are also used for transmission, but they are more commonly used for data and video communication rather than voice communication.

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  • 38. 

    Which of the following is not one of the three advantages to using wireless technology?

    • Ease of installation.

    • Lower Cost.

    • Safety.

    • Mobility.

    Correct Answer
    A. Safety.
    Explanation
    Wireless technology offers several advantages, including ease of installation, lower cost, and mobility. However, safety is not one of these advantages. While wireless technology provides convenience and flexibility, it may also pose security risks such as unauthorized access, data breaches, and interference. Therefore, safety is not considered an advantage of using wireless technology.

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  • 39. 

    What is the method called when the entire frame is received and placed into the buffer, an error check is performed, and the frame is sent to the proper port for delivery?

    • Store-and-forward.

    • Cross-over.

    • Fragment-free.

    • Adaptive.

    Correct Answer
    A. Store-and-forward.
    Explanation
    Store-and-forward is the method where the entire frame is received and placed into the buffer, an error check is performed, and then the frame is sent to the proper port for delivery. This method ensures that the frame is error-free before forwarding it, making it a reliable method for data transmission. Cross-over, fragment-free, and adaptive are not relevant to this process.

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  • 40. 

    Dynamic routing automatically calculates the best path between how many nodes?

    • 2

    • 3

    • 4

    • 5

    Correct Answer
    A. 2
    Explanation
    Dynamic routing automatically calculates the best path between two nodes.

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  • 41. 

    The main function of the Data Service Unit is to

    • Provide buffering and data flow control.

    • Manage timing errors and signal regeneration.

    • Provide the proper electrical termination for the transmission line.

    • Adapt the digital data stream produced by the customer equipment to the signaling standards of the telephone carrier equipment

    Correct Answer
    A. Adapt the digital data stream produced by the customer equipment to the signaling standards of the telephone carrier equipment
    Explanation
    The correct answer is to adapt the digital data stream produced by the customer equipment to the signaling standards of the telephone carrier equipment. The Data Service Unit acts as an interface between the customer's equipment and the telephone carrier's equipment. It ensures that the digital data stream from the customer's equipment is converted and formatted to meet the signaling standards and protocols used by the telephone carrier. This allows for seamless communication and compatibility between the two systems.

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  • 42. 

    The core operating-system function is the management of the computer system which resides with the

    • Shell.

    • Kernel.

    • Device manager.

    • Processor manager.

    Correct Answer
    A. Kernel.
    Explanation
    The kernel is the core operating system function that manages the computer system. It is responsible for managing the system's resources, such as memory, processes, and hardware devices. The kernel acts as a bridge between the hardware and software, allowing programs to communicate with the hardware and perform various tasks. It is the central component of the operating system and plays a crucial role in ensuring the system's stability, security, and overall performance.

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  • 43. 

    What directory is always identified by the slash symbol (I) and is in the “a” partition?

    • Root.

    • User.

    • Binary.

    • Device.

    Correct Answer
    A. Root.
    Explanation
    The directory that is always identified by the slash symbol and is in the "a" partition is the root directory. The root directory is the top-level directory in a file system hierarchy and serves as the starting point for navigating the file system. It contains all other directories and files in the file system.

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  • 44. 

    An uninvestigated or unevaluated occurrence that potentially jeopardizes the security of COMSEC material or the secure transmission of government information is best described as a

    • Insecurity.

    • Deviation.

    • Incident.

    • Report.

    Correct Answer
    A. Incident.
    Explanation
    An uninvestigated or unevaluated occurrence that potentially jeopardizes the security of COMSEC material or the secure transmission of government information is best described as an incident. This term implies that there has been a specific event or situation that has occurred, but it has not yet been fully investigated or evaluated to determine the extent of the security risk. The term "insecurity" does not accurately convey the idea of a specific occurrence, while "deviation" and "report" do not capture the potential security implications of the situation.

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  • 45. 

    What Transmission Control Protocol/Internet Protocol network layer protocol provides the service of matching a known 1 P address for a destination device to a Media Access Control address?

    • Internet Protocol.

    • Address Resolution Protocol.

    • Reverse Address Resolution Protocol.

    • Internet Control Message Protocol.

    Correct Answer
    A. Address Resolution Protocol.
    Explanation
    The correct answer is Address Resolution Protocol. The Address Resolution Protocol (ARP) is a network layer protocol that provides the service of matching a known IP address for a destination device to a Media Access Control (MAC) address. ARP is used to resolve IP addresses to MAC addresses in order to facilitate communication between devices on a local network.

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  • 46. 

    What Transmission Control Protocol/Internet Protocol network layer protocol provides the IP address for a device that knows its own MAC address?

    • Internet Protocol.

    • Address Resolution Protocol.

    • Reverse Address Resolution Protocol.

    • Internet Control Message Protocol.

    Correct Answer
    A. Reverse Address Resolution Protocol.
    Explanation
    The Reverse Address Resolution Protocol (RARP) is a network layer protocol that provides the IP address for a device that knows its own MAC address. RARP allows a device to send its MAC address to a RARP server and request its corresponding IP address. This is useful in situations where a device does not have a configured IP address and needs to obtain one dynamically.

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  • 47. 

    What Transmission Control Protocol/Internet Protocol network layer protocol provides messaging that can help with troubleshooting?

    • Internet Protocol.

    • Address Resolution Protocol.

    • Reverse Address Resolution Protocol.

    • Internet Control Message Protocol.

    Correct Answer
    A. Internet Control Message Protocol.
    Explanation
    The correct answer is Internet Control Message Protocol. ICMP is a network layer protocol that provides messaging services for troubleshooting and diagnostic purposes. It allows network devices to send error messages and operational information to indicate any issues or errors encountered during communication. ICMP messages can help in troubleshooting network connectivity, identifying network congestion, and diagnosing network problems. It is commonly used by network administrators and diagnostic tools to monitor and troubleshoot network issues.

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  • 48. 

    What Unicast address scope is designed to be private, internally routable addresses that do not route outside the site?

    • Site-local.

    • Link-local.

    • Aggregatable Local.

    • Aggregatable Global.

    Correct Answer
    A. Site-local.
    Explanation
    Site-local addresses are designed to be private, internally routable addresses that do not route outside the site. They are used for communication within a specific site or organization and are not meant to be globally unique or routable on the internet. Site-local addresses were deprecated in 2004 by RFC 4193, which introduced Unique Local Addresses (ULA) as a replacement.

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  • 49. 

    An optical communications system is comprised of a

    • Transmitter, cable, and receiver.

    • Transmitter, cable, and logic analyzer.

    • Transmitter, transmission medium, and logic analyzer.

    • Transmitter, transmission medium, and protocol analyzer.

    Correct Answer
    A. Transmitter, cable, and receiver.
    Explanation
    An optical communications system requires a transmitter to convert electrical signals into optical signals, a cable to transmit the optical signals, and a receiver to convert the optical signals back into electrical signals. This ensures that the information can be transmitted effectively and accurately from one point to another. A logic analyzer or protocol analyzer is not necessary for the basic functioning of an optical communications system.

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Quiz Review Timeline (Updated): Nov 15, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Nov 15, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 07, 2012
    Quiz Created by
    JOHLE21
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