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Computer-Networks
October 7, 2023
2016 July NTA UGC NET Paper 1
October 7, 2023
Computer-Networks
October 7, 2023
2016 July NTA UGC NET Paper 1
October 7, 2023

Subnetting

Question 2
Consider routing table of an organization’s router shown below:

Which of the following prefixes in CIDR notation can be collectively used to correctly aggregate all of the subnets in the routing table?
A
12.20.164.0/20
B
12.20.164.0/22
C
12.20.164.0/21
D
12.20.168.0/22
Question 2 Explanation: 
Do bit wise and with the given subnet and subnets mask then compare to given choices IP address range.
Correct Answer: D
Question 2 Explanation: 
Do bit wise and with the given subnet and subnets mask then compare to given choices IP address range.
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