200-301: Cisco Certified Network AssociateDemo

Question

Refer to the exhibit. If R1 receives a packet with destination 172.16.1.1, to which IP address will it forward the packet?

Question Image

A 192.168.14.4
B 192.168.12.2
C 192.168.13.3
D 192.168.15.5

Explanation

Routers forward packets using the most specific matching route in the routing table. The table includes 172.16.1.128/25 as a directly connected network, but that subnet does not include 172.16.1.1; it only covers addresses from 172.16.1.128 through 172.16.1.255. Because no more specific route matches 172.16.1.1, R1 uses the gateway of last resort, which is the default route 0.0.0.0/0 via 192.168.14.4.

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Cisco: Administrative Distance & route selection

200-301: Cisco Certified Network AssociateDemo

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