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AllInfoHub – MCQ Practice

Computer Networks – Multiple Choice Questions (MCQs)

  1. 49. What is a switch?

    • A. A networking device that forwards data packets based on MAC addresses within a local network
    • B. A device that routes packets between networks
    • C. A device that modulates and demodulates signals
    • D. A type of network software
  2. 50. What is a hub?

    • A. A networking device that forwards all received data to all connected devices
    • B. A device that intelligently forwards packets
    • C. A device that filters network traffic
    • D. A type of network connector
  3. 51. What is a firewall?

    • A. A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules
    • B. A device that amplifies network signals
    • C. A type of network cable
    • D. A protocol for secure communication
  4. 52. What is a VPN?

    • A. Virtual Private Network
    • B. Very Public Network
    • C. Video Processing Network
    • D. Voice Protocol Network
  5. 53. What is network congestion?

    • A. A condition in a network where data packets face delays due to network saturation
    • B. A physical damage to network cables
    • C. A software error in network devices
    • D. A security breach in the network
  6. 54. What is Quality of Service (QoS)?

    • A. The overall performance of a network
    • B. Mechanisms to prioritize certain types of network traffic
    • C. The physical layout of the network
    • D. The security protocols used
  7. 55. What is subnetting?

    • A. The process of dividing a network into smaller subnetworks
    • B. The process of combining multiple networks into one
    • C. The process of assigning IP addresses
    • D. The process of routing network traffic
  8. 56. What is a subnet mask?

    • A. A numerical label assigned to each device in a TCP/IP network that distinguishes the network prefix and the host suffix
    • B. A type of network cable
    • C. A network security protocol
    • D. A routing table entry
  9. 57. What is routing?

    • A. The process of selecting paths for traffic in a network or across multiple networks
    • B. The process of connecting devices within a local network
    • C. The process of detecting network errors
    • D. The process of encrypting network data
  10. 58. What is a routing protocol?

    • A. A set of rules that routers use to communicate with each other and determine the best paths for data packets
    • B. A type of network hardware
    • C. A network security standard
    • D. A data transmission medium
  11. 59. Which of the following is a routing protocol?

    • A. OSPF
    • B. HTTP
    • C. FTP
    • D. SMTP
  12. 60. What is network latency?

    • A. The delay in data transfer across a network
    • B. The speed of data transmission
    • C. The number of devices on a network
    • D. The physical distance between devices