GATE CS 2019 Set 1 — Question 38
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Computer Networks → Network Layer: Addressing → IPv4 Addressing
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Question
Consider three machines M, N, and P with IP addresses 100.10.5.2, 100.10.5.5, and 100.10.5.6 respectively. The subnet mask is set to 255.255.255.252 for all the three machines. Which one of the following is true?
Correct answer
(C) Only N and P belong to the same subnet
Solution
Given IP addresses:
- M: 100.10.5.2
- N: 100.10.5.5
- P: 100.10.5.6
- 100.10.5.0 to 100.10.5.3 (Subnet ID: 100.10.5.0)
- 100.10.5.4 to 100.10.5.7 (Subnet ID: 100.10.5.4)
- 100.10.5.8 to 100.10.5.11 (Subnet ID: 100.10.5.8)
- M (100.10.5.2) falls in the range 100.10.5.0 - 100.10.5.3. It belongs to subnet 100.10.5.0.
- N (100.10.5.5) falls in the range 100.10.5.4 - 100.10.5.7. It belongs to subnet 100.10.5.4.
- P (100.10.5.6) falls in the range 100.10.5.4 - 100.10.5.7. It belongs to subnet 100.10.5.4.
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