Networking 3DX5X Vol 2 Ure

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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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OSI Model Quizzes & Trivia
About This Quiz

This quiz, titled 'Networking 3DX5X Vol 2 URE', assesses knowledge on the OSI model, focusing on layers, functions, and protocols. It is designed to enhance understanding of network structures and operations, crucial for IT and networking professionals.

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  • 2. 

    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 it can have a combination of bus, ring, star, or any other topology. It allows for more flexibility and scalability in the network design, as different topologies can be used in different parts of the network based on their specific requirements. This type of topology is commonly used in larger networks where different sections may have different connectivity needs.

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  • 3. 

    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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  • 4. 

    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 network topology, including the available routes and their associated metrics or costs. By consulting the routing table, the algorithm can determine the best path for forwarding packets from the source to the destination. This allows routers to efficiently and accurately route network traffic, ensuring that data reaches its intended destination in the most optimal way possible.

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  • 5. 

    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 located on the computer's motherboard. It allows the operating system to communicate with and control these external hardware components, such as printers, scanners, or graphics cards. Without a driver, the operating system would not be able to access or utilize these devices effectively. Therefore, a driver is necessary to establish a connection and enable proper functioning between the operating system and external hardware.

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  • 6. 

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

    • Bus

    • Ring

    • Star

    • Hybrid

    Correct Answer
    A. Bus
    Explanation
    Bus topology consists of devices connected to a common, shared cable. In this topology, all devices are connected to a single cable known as the bus. Each device on the network can transmit data onto the bus, and all other devices on the network can receive that data. This type of topology is relatively simple and inexpensive to implement, making it suitable for small networks. However, if the bus cable fails, the entire network can be affected, and the performance of the network can be impacted as more devices are added.

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  • 7. 

    What application within Transmission Control Protocol/Internet Protocol is used to send and receive files via TCP?

    • File Transfer Protocol

    • Trivial File Transfer Protocol

    • Simple Mail Transfer Protocol

    • HyperText Transfer Protocol

    Correct Answer
    A. File Transfer Protocol
    Explanation
    File Transfer Protocol (FTP) is the correct answer because it is the application within TCP/IP that is specifically designed for sending and receiving files over a network. FTP allows users to transfer files between a client and a server using TCP as the underlying protocol. It provides a reliable and efficient method for file transfer, making it a widely used protocol for tasks such as uploading website files or transferring large files between computers.

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  • 8. 

    Using a range of 1–126 in the first octet of an IPv4 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 values in the first octet. Class A addresses have a range of 1-126 in the first octet, which means that the given IPv4 address belongs to Class A. Class A addresses are used for large networks as they can accommodate a large number of hosts.

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  • 9. 

    What notation is expressed in zero compression for IPv6?

    • 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 given answer "10AB::3:0:1234:5678" is an example of zero compression notation for IPv6. In this notation, consecutive blocks of zeros can be represented by "::". This allows for a shorter representation of the IPv6 address. In the given answer, "::" is used to represent the consecutive blocks of zeros between "10AB" and "3", and between "3" and "1234".

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  • 10. 

    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 due to concerns regarding both security and reliability. Security is a crucial factor for the military as they need to ensure that their wireless networks are protected from unauthorized access and potential cyber threats. Additionally, reliability is essential for the military to ensure uninterrupted communication and data transmission. Therefore, these concerns regarding security and reliability played a significant role in slowing down the military's adoption of wireless network technology.

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  • 11. 

    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 an IP address configured and needs to obtain one dynamically. The RARP server will then respond with the appropriate IP address for the requesting device.

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  • 12. 

    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 a type of network that connects networks that are typically separated by geographical distances. It is used to connect networks between cities, states, countries, or even across the world. Unlike a Local Area Network (LAN) which is limited to a specific area, a WAN allows for long-distance communication and enables organizations to connect their remote offices or branches. A Virtual Private Network (VPN) is a secure connection that uses public networks to create a private network, while a Metropolitan Area Network (MAN) connects networks within a specific metropolitan area.

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  • 13. 

    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 correct answer is microprocessor because it is the component of a computer that performs most of the processing inside the computer. It is responsible for executing instructions, performing calculations, and managing data flow between different parts of the computer. The microprocessor is often referred to as the "brain" of the computer as it controls and coordinates all the activities of the computer system.

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  • 14. 

    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 reliable and cost-effective transmission medium. It consists of two insulated copper wires twisted together, which helps to minimize interference and crosstalk. Twisted pair cables are widely used in telephone networks and are capable of transmitting voice signals over long distances without significant degradation in quality. Additionally, they are easy to install and maintain, making them a popular choice for voice communication systems.

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  • 15. 

    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
    Safety is not one of the three advantages to using wireless technology. Wireless technology offers ease of installation, lower cost, and mobility as its advantages. Safety may not be considered as an advantage because wireless technology can have potential security risks such as unauthorized access, data breaches, and interference. While wireless technology provides convenience and flexibility, it may not guarantee the same level of safety as wired connections.

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  • 16. 

    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. Mobility refers to the ability to move freely without being restricted by wires in wireless technology. It allows users to access and use devices or services from different locations without the need for physical connections. This feature is essential in various applications such as mobile phones, laptops, and wireless networks, enabling convenience and flexibility for users.

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  • 17. 

    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. They can either unintentionally assist attackers by clicking on malicious links or sharing confidential information, or intentionally collaborate with external parties to compromise the network's security.

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  • 18. 

    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 establishes that 80% of the data should be local to a segment, meaning it stays within that segment, while 20% of the data should traverse a bridge to the other segment. This rule helps determine the balance between local and remote data transfer, ensuring efficient data distribution and communication between segments.

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  • 19. 

    What layer of the Open System Interconnect model defines the electrical, mechanical, procedural, and functional specifications for links between communicating network systems?

    • Physical

    • Data Link

    • Network

    • Transport

    Correct Answer
    A. Physical
    Explanation
    The Physical layer of the Open System Interconnect model is responsible for defining the electrical, mechanical, procedural, and functional specifications for links between communicating network systems. This layer deals with the physical transmission of data, including the physical media, signal encoding, and electrical voltages used for communication. It ensures that the data is transmitted reliably and accurately over the network.

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  • 20. 

    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 the flow control, error checking, and framing of data packets. It also provides services to the Network Layer. The Media Access Control (MAC) sublayer is responsible for controlling access to the network media and managing the physical addressing of data packets. These two sublayers work together to ensure reliable and efficient communication between network devices.

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  • 21. 

    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

    • Internetwork 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 set of protocols that allows for reliable and secure communication over networks, and it is widely used in the internet and other computer networks. It provides a standardized framework for addressing, routing, and transmitting data packets, making it an ideal choice for the Department of Defense to ensure efficient and secure communication within its network infrastructure.

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  • 22. 

    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 Internet Control Message Protocol (ICMP) is a network layer protocol that provides messaging capabilities to assist in troubleshooting. ICMP is primarily used for error reporting, network diagnostics, and troubleshooting network connectivity issues. It allows network devices to send error messages to the source IP address when a problem occurs during packet transmission. These error messages can provide valuable information about network issues, such as unreachable hosts, network congestion, or incorrect routing configurations. ICMP is an essential component of the TCP/IP protocol suite and is widely used by network administrators to diagnose and resolve network problems.

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  • 23. 

    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 sections, each representing one byte of the address. Each section is separated by a dot, making it easier for users to read and understand the address. This format is widely used and is familiar to most users, making it more convenient for communication and configuration purposes.

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  • 24. 

    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 IPv4 reserved address used for loop back is 127.0.0.1. This address is commonly referred to as the loopback address and is used to test network connectivity on a local machine. When a packet is sent to this address, it is immediately routed back to the sender without leaving the network interface, allowing the machine to communicate with itself.

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  • 25. 

    What is the type of memory that retains data after power is removed or lost?

    • Volatile

    • Nonvolatile

    • Secured

    • Unsecured

    Correct Answer
    A. Nonvolatile
    Explanation
    Nonvolatile memory is the type of memory that retains data even after power is removed or lost. Unlike volatile memory, which requires a constant power supply to retain data, nonvolatile memory can store information without the need for power. This type of memory is commonly used in devices such as hard drives, solid-state drives, and flash memory, where data needs to be stored even when the device is powered off.

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  • 26. 

    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. Unlike general software programs, which can perform a wide range of functions, applications are focused on a particular purpose or set of tasks. They are developed to meet the specific needs of users and provide targeted functionality. This specificity allows applications to be more efficient and effective in performing their intended tasks.

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  • 27. 

    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 created in the 1960s and was designed to be portable, allowing it to run on different hardware platforms. UNIX introduced many innovative features such as multitasking, file system organization, and a command-line interface. Its portability and flexibility made it popular among universities, research institutions, and eventually commercial enterprises. Today, UNIX and its derivatives continue to be widely used in various industries, including telecommunications, finance, and scientific research.

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  • 28. 

    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) is a type of network that utilizes tunneling and security protocols to enable a group of computer systems to communicate over the public Internet. It creates a secure and encrypted connection between the systems, allowing them to exchange data and information privately. This is particularly useful for remote workers or organizations that need to connect multiple locations securely over the internet. A VPN ensures that the communication remains private and protected from unauthorized access or interception.

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  • 29. 

    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 belongs to the network and which part belongs to the host. By using a subnet mask, a network device can identify the network that a particular IP address belongs to and route the data accordingly. This helps in efficient communication and management of IP addresses within a network.

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  • 30. 

    What organization developed several wireless standards to meet the demands of security, speed, and flexibility of today’s wireless networks?

    • Institute of Electrical Electronics Engineers

    • International Organization for Standardization

    • Internet assigned numbers authority

    • National Science Foundation network

    Correct Answer
    A. Institute of Electrical Electronics Engineers
    Explanation
    The Institute of Electrical Electronics Engineers (IEEE) developed several wireless standards to meet the demands of security, speed, and flexibility of today's wireless networks. These standards include IEEE 802.11 for Wi-Fi, IEEE 802.15 for Bluetooth, IEEE 802.16 for WiMAX, and many others. The IEEE is a globally recognized organization that focuses on advancing technology and innovation in various fields, including wireless communications. Their standards ensure interoperability, reliability, and performance in wireless networks, making them crucial for the development and implementation of wireless technologies.

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  • 31. 

    Which of these is an example of an Exterior Gateway Protocol?

    • Open Shortest Path First

    • Border Gateway Protocol

    • Routing Information Protocol

    • Enhanced Gateway Routing Protocol

    Correct Answer
    A. Border Gateway Protocol
    Explanation
    Border Gateway Protocol (BGP) is an example of an Exterior Gateway Protocol (EGP). BGP is used to exchange routing information between different autonomous systems (AS) on the internet. It is responsible for determining the best path for data packets to travel from one AS to another. BGP is widely used by internet service providers and large networks to ensure efficient and reliable routing of internet traffic.

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  • 32. 

    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 correct answer because it is responsible for managing the computer system's core operating functions. It acts as a bridge between the hardware and software, handling tasks such as memory management, process scheduling, and device driver management. The kernel is essential for the proper functioning of the operating system and ensures that all other components, including the shell, device manager, and processor manager, can interact effectively with the hardware and perform their respective functions.

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  • 33. 

    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 represents an intermediate level of readiness and signifies an increased risk of attack. During INFOCON 2, non-essential networks can be taken offline and replaced with alternate communication methods to mitigate the risk and protect critical systems from potential attacks. This level of readiness allows for proactive measures to be taken, ensuring the security and functionality of essential networks.

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  • 34. 

    At what Open System Interconnect layer do routers operate?

    • Network

    • Physical

    • Data Link

    • Transport

    Correct Answer
    A. Network
    Explanation
    Routers operate at the Network layer of the Open System Interconnect (OSI) model. The Network layer is responsible for routing packets across different networks and determining the best path for data transmission. Routers use IP addresses and routing tables to make decisions about forwarding packets to their intended destinations. They also perform functions such as packet filtering, network address translation (NAT), and network segmentation. By operating at the Network layer, routers play a crucial role in connecting different networks and enabling communication between devices.

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  • 35. 

    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 provides services directly to the user, such as email, web browsing, and file transfer. It interacts with software applications and allows users to access network resources. The Application layer is responsible for formatting, encrypting, and compressing data before sending it to the Presentation layer for further processing.

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  • 36. 

    What is a formal set of rules 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. Protocols ensure that different devices and systems can communicate effectively and understand each other's messages. They provide a standardized way for computers to interact and enable the reliable transfer of data across networks.

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  • 37. 

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

    • Bus

    • Ring

    • Star

    • Hybrid

    Correct Answer
    A. Star
    Explanation
    The star topology consists of cable segments from each computer connected to a centralized component, usually a switch or hub. In this topology, all the computers are connected directly to the central component, allowing for easy management and troubleshooting. If one computer fails or has an issue, it will not affect the rest of the network. Additionally, the star topology provides better performance and scalability compared to other topologies like bus or ring.

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  • 38. 

    How many devices can connect to a FireWire bus?

    • 63

    • 64

    • 65

    • 66

    Correct Answer
    A. 63
    Explanation
    A FireWire bus can connect up to 63 devices. This is because the FireWire standard allows for a maximum of 63 devices to be connected in a daisy-chain configuration, where each device is connected to the previous one. This limit is imposed by the addressing scheme used by FireWire, which assigns a unique identifier to each device on the bus. Therefore, the correct answer is 63.

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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 stored in the buffer. It then performs an error check to ensure the integrity of the frame. Once the error check is completed, the frame is sent to the appropriate port for delivery. This method ensures that the frame is error-free before forwarding it, making it a reliable method for data transmission.

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  • 40. 

    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
    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. This means that the classification of the fill device is determined by the key that is loaded into it. Once a key is loaded, the fill device takes on the classification of that key. This ensures that the information stored or processed by the fill device is protected at the appropriate level of classification.

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  • 41. 

    What directory is always identified by the slash symbol (/) 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 system.

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  • 42. 

    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
    INFOCON 3 is the condition that requires all unclassified dial-up connections to be disconnected when a risk of a network system attack has been identified. This means that when the threat level is at INFOCON 3, it is considered to be high enough that all unclassified dial-up connections should be terminated to minimize the risk of a potential attack.

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  • 43. 

    What Transmission Control Protocol/Internet Protocol network layer protocol provides the service of matching a known IP 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 Address Resolution Protocol (ARP) is the 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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  • 44. 

    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. Each bit can be either a 0 or a 1, resulting in a total of 2^32 possible combinations. This allows for approximately 4.3 billion unique addresses, which are used to identify devices on a network. IPv4 addresses are commonly written in decimal format with four sets of numbers separated by periods, with each set representing 8 bits.

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  • 45. 

    What two main components make up the central processing unit?

    • Control unit and read-only memory

    • Control unit and arithmetic logic unit

    • Arithmetic logic unit and read-only memory

    • Arithmetic logic unit and random access memory

    Correct Answer
    A. Control unit and arithmetic logic unit
    Explanation
    The central processing unit (CPU) is made up of two main components: the control unit and the arithmetic logic unit (ALU). The control unit is responsible for coordinating and controlling the operations of the CPU, while the ALU performs arithmetic and logical operations. Together, these two components work together to execute instructions, process data, and perform calculations within a computer system.

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  • 46. 

    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 threats to the security of a wireless network. Rogue Access Points refer to unauthorized access points that are set up by attackers to gain access to the network. War Drivers are individuals who drive around with a wireless device to detect and exploit vulnerabilities in wireless networks. Hackers are individuals who attempt to gain unauthorized access to the network to steal data or disrupt operations. However, Direct Connections do not pose a direct security threat to a wireless network as they are typically used for legitimate purposes such as connecting a device directly to a router or modem.

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  • 47. 

    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. The physical topology refers to the actual physical layout of devices and media in a network. It defines how the devices are connected and the physical arrangement of cables, switches, routers, and other networking equipment. This includes the placement of devices such as computers, servers, printers, and the physical connections between them. The physical topology is important for understanding how data flows within a network and for troubleshooting 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. These addresses are used within a specific site or organization and are not meant to be globally unique. They provide a way for devices within the same site to communicate with each other without the need for external routing. Site-local addresses have been deprecated in favor of Unique Local Addresses (ULA) as per the IPv6 addressing architecture.

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  • 49. 

    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
    Voltage is applied across Liquid Crystal Display (LCD) material to change the alignment and light polarizing property. This is because the liquid crystals in an LCD are sensitive to electric fields. By applying a voltage, the electric field causes the liquid crystals to align in a specific direction, which in turn affects the polarization of light passing through the LCD. This allows for the manipulation of light transmission and the creation of images on the display.

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Quiz Review Timeline (Updated): Mar 16, 2023 +

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  • Current Version
  • Mar 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 15, 2012
    Quiz Created by
    Huroku

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