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Practice over 1000+ GATE-level questions from this topic!

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Q#1 Basic Concept And IPv4 Addressing MSQ +2 marks -0 marks

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

Subnet Number

Subnet Mask

NextHop

12.20.164.0

255.255.252.0

R1

12.20.170.0

255.255.254.0

R2

12.20.168.0

255.255.254.0

Interface0

12.20.166.0

255.255.254.0

Interface1

default

R3

 Which of the following prefixes in CIDR notation can be collectively used to correctly aggregate all of the subnets in the routing table?

12.20.164.0/20

12.20.164.0/22

12.20.164.0/21

12.20.168.0/22

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