Exam 300-410 topic 1 question 493 discussion

Actual exam question from Cisco's 300-410

Question #: 493
Topic #: 1

[All 300-410 Questions]

Refer to the exhibit.

R1 cannot establish a neighbor relationship with R2. Which action resolves the issue?

A. Configure the mtu ignore command on the interfaces of R1 and R2.
B. Configure the ip ospf network point-to-point command on the interfaces of R1 and R2.
C. Configure the neighbor 2.2.2.2 command on R1 under the OSPF process.
D. Configure the ip ospf network broadcast command on the interfaces of R1 and R2.

Show Suggested Answer

Suggested Answer: A 🗳️

by seal2 at Sept. 11, 2023, 3:13 p.m.

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bk989

10 months ago

C. We don't need a neighbor statement on P2P networks. D. We don't need broadcast on P2P network. A. If we had a timer mismatch (a network mismatch) we woudln't get to the exstart/exchange state. Normally exstart/exchange state problems are due to: Corrupted DBD packets, link congestion, or MTU issues.

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bk989

9 months, 3 weeks ago

looked at the diagram again and realized this is a multiaccess ethernet topology. Still: C:Misconfigured neighbor statement means we won't be sending out DBD's, but Hello's to establish adjacency D: It is assuming a timer mismatch. If timers are mismatched we wouldn't get to the Exstart state The Exstart/Exchange issue is caused bu MTU or corrupted DBD packets or even DBD packets that are out of sequence. Our answer is A.

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