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Concept drill

cidr

GATE CSE & IT · Network Layer · 2012-2026

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elite explanations
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Forouzan — Data Communications and Networking

Layered models, IP, routing, TCP, data link protocols

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2026 PYQ

An ISP having an address block 202.16.0.0/15 assigns a block of 6000 IP addresses to a client, using the classless internet domain routing (CIDR) super-netting approach. Which of t...

mediumanswer keybasic explanation
2025 Q40

A packet with the destination IP address 145.36.109.70 arrives at a router whose routing table is shown. Which interface will the packet be forwarded to? Subnet Address Subnet Mask...

mediumanswer key
2025 PYQ

A packet with the destination IP address 145.36.109.70 arrives at a router whose routing table is shown. Which interface will the packet be forwarded to? Subnet Address Subnet Mask...

easyanswer keybasic explanation
2024 Q38

Which one of the following CIDR prefixes exactly represents the range of IP addresses 10.12.2.0 to 10.12.3.255?

mediumanswer key
2024 PYQ

Consider the entries shown below in the forwarding table of an IP router. Each entry consists of an IP prefix and the corresponding next hop router for packets whose destination IP...

mediumbasic explanation
2024 PYQ

Which one of the following CIDR prefixes exactly represents the range of IP addresses 10.12.2.0 to 10.12.3.255?

easyanswer keybasic explanation
2022 PYQ

Consider routing table of an organization's router shown below : Subnet number Subnet mask Next hop 12.20.164.0 255.255.252.0 R1 12.20.170.0 255.255.254.0 R2 12.20.168.0 255.255.25...

mediumanswer keybasic explanation
2020 PYQ

An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached an Internet Service Provider (ISP) for this task. The...

mediumanswer keybasic explanation
2015 PYQ

In the network 200.20.11.144/27, the fourth octet (in decimal) of the last IP address of the network which can be assigned to a host is ________.

easy
2012 PYQ

An Internet Service Provider (ISP) has the following chunk of CIDR-based IP addresses available with it: 245.248.128.0/20. The ISP wants to give half of this chunk of addresses to...

mediumanswer key