NPTEL Computer Networks And Internet Protocol Week 8 Assignment Answers 2025
1. What is the network address of the following?
IP address: 5.6.7.212
Subnet Mask: 255.255.252.0
a) 5.6.4.0
b) 5.6.7.0
c) 5.6.7.255
d) 5.6.255.255
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2. Consider the following CIDR blocks: 192.168.0.0/24 and 192.168.3.0/24. Identify the possible
aggregated prefix (route summarization/supernetting) among the following.
a) 192.168.0.0/22
b) 192.168.0.0/23
d) 192.168.0.023
192.168.0.0/25.
Answer :-
3. Which of the following statements are true for Autonomous Systems (AS)?
a) The internet is composed of interconnected Autonomous Systems.
b) It is administered by multiple authorities.
c) BGP protocol is primarily used for communication between different Autonomous Systems (ASs).
d) An Area in an Autonomous System (AS) is a collection of routers, networks, and hosts within
an AS.
Answer :-
4. How many bits are used to identify the Autonomous Systems (AS)?
a) 1
b) 32
c) 64
d) 8
Answer :-
5. Which transport layer protocol does BGP use for communication between peers?
a) TCP
b) UDP
c) QUIC
d) ICMP
Answer :-
6.
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7. The Link State Routing Algorithm is/are NOT concerned with-
a) It shares the routing table rather than sending the information about its neighborhood only.
b) Each router computes the shortest paths to all independently using Dijkstra’s algorithm.
c) Each router does not have a complete view of the network topology.
d) Once a router has detected a local link failure, it generates and floods a new LSP that no longer
contains the failed link and the new LSP replaces the previous LSP in the network.
Answer :-
8.
Answer :-
9. An ISP is assigned the CIDR block 192.168.0.0/16. Identify the valid subnets) among the following that can be allocated to its customers.
a) 192.169.0.0/16
b) 192.168.0.0/17
c) 192.168.128.0/17
d) 192.168.0.0/18
Answer :-
10. What is the default value of TTL field in BGP packets in eBGP?
a) 255
b) 1
c) 128
d) 641
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