Computer Networks – Multiple Choice Questions (MCQs)

1. 73. What is a network topology?

   • A. The physical or logical arrangement of nodes and connections in a network
   • B. The speed of data transmission
   • C. The type of cables used
   • D. The network protocols in use

2. 74. Which of the following is a common network topology?

   • A. Bus
   • B. Star
   • C. Ring
   • D. Mesh

3. 75. In a bus topology, how are devices connected?

   • A. Each device is connected to a central hub
   • B. Each device is connected in a closed loop
   • C. All devices are connected to a single central cable
   • D. Devices are connected in a hierarchical tree-like structure

4. 76. In a star topology, how are devices connected?

   • A. Each device is connected to a central hub or switch
   • B. Devices are connected in a linear fashion
   • C. Devices are connected in a circular fashion
   • D. Each device is directly connected to every other device

5. 77. In a mesh topology, how are devices connected?

   • A. Each device is connected to a central hub
   • B. Devices are connected in a linear sequence
   • C. Each device is connected to every other device
   • D. Devices are connected in a ring

6. 78. What is a protocol in computer networking?

   • A. A set of rules that govern communication between network devices
   • B. A type of network hardware
   • C. A network topology
   • D. A data transmission medium

7. 79. What is the OSI model?

   • A. A conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system
   • B. A type of network cable
   • C. A specific network protocol
   • D. A network security standard

8. 80. How many layers are there in the OSI model?

   • A. 4
   • B. 5
   • C. 6
   • D. 7

9. 81. Which layer of the OSI model is responsible for physical transmission of data?

   • A. Physical layer
   • B. Data link layer
   • C. Network layer
   • D. Transport layer

10. 82. Which layer of the OSI model is responsible for error detection and correction within a local network?

    • A. Physical layer
    • B. Data link layer
    • C. Network layer
    • D. Transport layer

11. 83. Which layer of the OSI model is responsible for logical addressing and routing of packets?

    • A. Physical layer
    • B. Data link layer
    • C. Network layer
    • D. Transport layer

12. 84. Which layer of the OSI model is responsible for reliable end-to-end data transfer?

    • A. Physical layer
    • B. Data link layer
    • C. Network layer
    • D. Transport layer