Computer Networks Multiple Choice Questions and Answers for Practice

16. Which of the following is correct regarding Class B Address of IP address

1. Network bit – 14, Host bit – 16
2. Network bit – 16, Host bit – 14
3. Network bit – 18, Host bit – 16
4. Network bit – 12, Host bit – 14

17. The last address of IP address represents

1. Unicast address
2. Network address
3. Broadcast address
4. None of above

18. How many bits are there in the Ethernet address?

1. 64 bits
2. 48 bits
3. 32 bits
4. 16 bits

19. How many layers are in the TCP/IP model?

1. 4 layers
2. 5 layers
3. 6 layers
4. 7 layers

20. Which of the following layer of OSI model also called end-to-end layer?

1. Presentation layer
2. Network layer
3. Session layer
4. Transport layer

21. Why IP Protocol is considered as unreliable?

1. A packet may be lost
2. Packets may arrive out of order
3. Duplicate packets may be generated
4. All of the above

22. What is the minimum header size of an IP packet?

1. 16 bytes
2. 10 bytes
3. 20 bytes
4. 32 bytes

23. Which of following provides reliable communication?

1. TCP
2. IP
3. UDP
4. All of the above

24. What is the address size of IPv6 ?

1. 32 bit
2. 64 bit
3. 128 bit
4. 256 bit