Exam 200-301 topic 1 question 473 discussion

Actual exam question from Cisco's 200-301

Question #: 473
Topic #: 1

Refer to the exhibit. R1 learns all routes via OSPF. Which command configures a backup static route on R1 to reach the 192.168.20 0/24 network via R3?

A. R1(config)#ip route 192.168.20.0 255.255.255.0 192.168.30.2 111
B. R1(config)#ip route 192.168.20.0 255.255.255.0 192.168.30.2 90
C. R1(config)#ip route 192.168.20.0 255.255.0.0 192.168.30.2
D. R1(config)#ip route 192.168.20.0 255.255.255.0 192.168.30.2

Show Suggested Answer

Suggested Answer: A 🗳️

by Bl1024 at Sept. 7, 2022, 7:55 p.m.

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1Abel1

1 month, 2 weeks ago

Selected Answer: A

A backup static route is also known as a floating static route, the default AD of OSPF is 110, so to make a backup static route, we need to assign an AD that is higher than 110. In this scenario, 111 is preferred.

upvoted 2 times

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Bl1024

1 year, 11 months ago

B is correct as well. Why choose A and not B?

upvoted 2 times

MinSun600

4 months ago

no it's not b incorrect while OSPF 110 so should be higher than that AD wich is 111 is good

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Paullll

1 year, 11 months ago

I think it's because of the "back-up static route", if everything is learned via OSPF (110), it needs a bigger AD for a back-up one, so 111. This is the way I think, at least.

upvoted 30 times

FALARASTA

1 year, 3 months ago

thats true

upvoted 3 times

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nicombe

1 year, 10 months ago

This is the way

upvoted 6 times

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shumps

1 year, 3 months ago

You spot on!!

upvoted 2 times

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