Exam 300-320 topic 1 question 174 discussion

Actual exam question from Cisco's 300-320

Question #: 174
Topic #: 1

Two companies want to merge their OSPF networks, but they run different OSPF domains. Which option must be created to accomplish this requirement?

A. OSPF virtual link to bridge the backboneareas of the two companies together
B. Area on the ASBR of each company with the same area ID to bridge the networks together
C. redistribute routes between domains
D. NSSA on the ASBR of each company

Show Suggested Answer

Suggested Answer: C 🗳️

by malahughes at June 21, 2019, 2:02 p.m.

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Cruxten

5 years, 6 months ago

Redistribution does not "merge" the OSPF networks together. It simply makes each OSPF instance aware of the others as external routes. Using a virtual link does merge the area 0's together. See the attached Cisco guide on "partitioning the backbone". The answer is A. https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/7039-1.html#t15

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Mahbod

5 years, 8 months ago

Trust me. it is A. Because of my English skills, I can't describe it.

upvoted 1 times

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Scheldon

5 years, 9 months ago

There is a lack of detailed information about OSPF configuration on both location so the best and safest answer is C. redistribute routes between domains

upvoted 2 times

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