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Computer Network: Network Layer
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Computer Network: Network Layer
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25 Questions

1. Dijkstra's Algorithm is used to solve _____________ problems.
2. The running time of Bellmann Ford algorithm is lower than that of Dijkstra's Algorithm.
3. ICMP is primarily used for __________
4. Which of the following field in IPv4 datagram is not related to fragmentation?
5. The first address in a block is used as network address that represents the ________
6. The network layer is concerned with __________ of data.
7. ICMP error message will not be generated for a datagram having a special address such as _______
8. What is running time of Dijkstra's algorithm using Binary min- heap method?
9. The network layer protocol for internet is __________
10. Which of the following demerits does Fragmentation have?
11. In classful addressing, a large part of available addresses are ________
12. In case of time exceeded error, when the datagram visits a router, the value of time to live field is _________
13. Which one of the following is not a function of the network layer?
14. What should be the flag value to indicate the last fragment?
15. The maximum number of times the decrease key operation performed in Dijkstra's algorithm will be equal to ___________
16. Network addresses are a very important concept of ________
17. How many times the insert and extract min operations are invoked per vertex?
18. Which of the following is not applicable for IP?
19. Which field helps to check rearrangement of the fragments?
20. In classless addressing, there are no classes but addresses are still granted in ______
21. What happens when while loop in line 4 is changed to while Q>1?
22. What is running time of Dijkstra's algorithm using Binary min- heap method?
23. A 4 byte IP address consists of __________
24. When a router cannot route a datagram or host cannot deliver a datagram, the datagram is discarded and the router or the host sends a ____________ message back to the source host that initiated the datagram.
25. Which of the following is not correct in relation to multi-destination routing?

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