200-301: Cisco Certified Network AssociateDemo

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QuestionQ184

IP Connectivity

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Refer to the exhibit. A packet is being forwarded through router R1 to host 172.16.3.14. To which destination does the router send the packet?

  • A 207.165.200.246 via Serial0/1/0
  • B 207.165.200.254 via Serial0/0/0
  • C 207.165.200.250 via Serial0/0/0
  • D 207.165.200.254 via Serial0/0/1
Explanation

Routers forward packets using longest-prefix match. Although R1 has a route for 172.16.3.0/24 via 207.165.200.250 on Serial0/0/0, it also has a more specific route for 172.16.3.0/28 via 207.165.200.254 on Serial0/0/1. Because 172.16.3.14 is inside the 172.16.3.0/28 subnet, R1 sends the packet to 207.165.200.254 out Serial0/0/1.

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