Consider the routing table of an organization's router. | Network address | Subnet mask | Forward to | | --- | --- | --- | | 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 | Interface 0 | | 12.20.166.0 | 255.255.254.0 | Interface 1 | | 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?

B. 12.20.164.0/22; D. 12.20.168.0/22

TCP, UDP and IP GATE 2022 Question #590 with Solution

GATE 2022

Computer NetworksTCP, UDP and IPhardMSQ2 marks

Consider the routing table of an organization's router.

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

A12.20.164.0/20B12.20.164.0/22C12.20.164.0/21D12.20.168.0/22

Select every correct option.

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