ISRO Computer Science (CSE) 2015 - Question 57

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A router uses the following routing table... Packet bearing a destination address 144.16.68.117 arrives. On which interface will it be forwarded?

  • A. eth0
  • B. eth2
  • C. eth1
  • D. eth3

Answer: B. eth2

Explanation: Longest prefix match. 144.16.68.0/24 matches 24 bits. /27 (mask 224) does NOT match (64 vs 96).

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