Exam 352-001 topic 1 question 172 discussion

Actual exam question from Cisco's 352-001

Question #: 172
Topic #: 1

Refer to the exhibit. The design is being proposed for use within the network. The CE devices are
OSPF graceful restart-capable, and the core devices are OSPF graceful restart-aware. The WAN advertisements received from BGP are redistributed into OSPF.
A forwarding supervisor failure event takes place on CE A. During this event, how will the routes learned from the WAN be seen on the core devices?

A. via CE A and CE B
B. via CE A
C. via CE B
D. no WAN routes will be accessible

Show Suggested Answer

Suggested Answer: C 🗳️

by joshuat at Dec. 26, 2020, 1:37 a.m.

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JCGO

2 years, 11 months ago

Another "turkish kebab" question. Btw, cisco interprets graceful restart and nsf equally. But, actually, they are not the same. the question is, will the redistributed BGP route stay in RIB/FIB during failure or not. i dont know and can not find 2sup equipment for tests. but would vote for C.

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A_Wolf

4 years, 3 months ago

A would be okay if it is only the OSPF process that reloads in that case indeed forwarding is maintained and the routing table stays, Hoewever the question mentions a supervisor FORWARDING failure. --> C is correct.

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joshuat

4 years, 4 months ago

A - NSF with a graceful restart aware - the neighbour will keep the route

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Exam 352-001 topic 1 question 172 discussion

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JCGO

A_Wolf

joshuat

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