Computer Networks – Multiple Choice Questions (MCQs)

1. 85. Which layer of the OSI model is responsible for session management?

   • A. Session layer
   • B. Presentation layer
   • C. Application layer
   • D. Transport layer

2. 86. Which layer of the OSI model is responsible for data formatting and encryption?

   • A. Session layer
   • B. Presentation layer
   • C. Application layer
   • D. Network layer

3. 87. Which layer of the OSI model is the closest to the end user?

   • A. Session layer
   • B. Presentation layer
   • C. Application layer
   • D. Physical layer

4. 88. What is the TCP/IP model?

   • A. A practical implementation of the OSI model with fewer layers
   • B. A theoretical model for network communication
   • C. A specific network protocol suite
   • D. A type of network hardware

5. 89. How many layers are there in the TCP/IP model?

   • A. 3
   • B. 4
   • C. 5
   • D. 6

6. 90. Which layer of the TCP/IP model combines the physical and data link layers of the OSI model?

   • A. Network access layer
   • B. Internet layer
   • C. Transport layer
   • D. Application layer

7. 91. Which layer of the TCP/IP model corresponds to the network layer of the OSI model?

   • A. Network access layer
   • B. Internet layer
   • C. Transport layer
   • D. Application layer

8. 92. Which layer of the TCP/IP model provides reliable and unreliable data transfer?

   • A. Network access layer
   • B. Internet layer
   • C. Transport layer
   • D. Application layer

9. 93. Which layer of the TCP/IP model combines the session, presentation, and application layers of the OSI model?

   • A. Network access layer
   • B. Internet layer
   • C. Transport layer
   • D. Application layer

10. 94. What is an IP address?

    • A. A logical address assigned to each device on a TCP/IP network
    • B. A physical address of a network interface card
    • C. A network protocol
    • D. A type of network cable

11. 95. What is IPv4?

    • A. The fourth version of the Internet Protocol
    • B. A type of network hardware
    • C. A network topology
    • D. A data encryption standard

12. 96. How many bits are in an IPv4 address?

    • A. 32
    • B. 64
    • C. 128
    • D. 256