200-301: Cisco Certified Network AssociateDemo

Question

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Refer to the exhibit.

Router R1 is currently configured to use R3 as the primary route to the internet, and that route uses the default administrative distance settings. A network engineer must configure R1 so that it uses R2 as a backup, but only if R3 goes down.

Which command must the engineer configure on R1 so that it correctly uses R2 as a backup route, without changing the administrative distance configuration on the link to R3?

A ip route 0.0.0.0 0.0.0.0 209.165.201.5.10
B ip route 0.0.0.0 0.0.0.0 g0/1 1
C ip route 0.0.0.0 0.0.0.0 209.165.200.226 1
D ip route 0.0.0.0 0.0.0.0 g0/1 6

Explanation

A backup static route must be configured as a floating static route, which means its administrative distance must be higher than the primary static route's default administrative distance of 1. Because R2 is connected to R1 on interface g0/1, a default route using g0/1 with an administrative distance greater than 1 will remain inactive while the primary route through R3 is available and will be installed only if that primary route fails. ip route 0.0.0.0 0.0.0.0 g0/1 6 satisfies that requirement.

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Implementing Static Routes (Floating Static Routes) - Cisco

200-301: Cisco Certified Network AssociateDemo

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