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Cisco Exam 300-410 Topic 14 Question 94 Discussion

Actual exam question for Cisco's 300-410 exam
Question #: 94
Topic #: 14
[All 300-410 Questions]

Refer to the exhibit.

An engineer is troubleshooting BGP on a device but discovers that the clock on the device does not correspond to the time stamp of the log entries. Which action ensures consistency between the two times?

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Suggested Answer: A

In OSPF (Open Shortest Path First), the MTU (Maximum Transmission Unit) size must match on both sides of a link for OSPF neighbors to form an adjacency12.If the MTU sizes do not match, the OSPF adjacency will not form, and the routers will not become neighbors12.

In this case, R1 cannot establish a neighbor relationship with R2.One possible reason for this could be a mismatch in the MTU size on the interfaces of R1 and R212.

To resolve this issue, you can configure themtu ignorecommand on the interfaces of R1 and R2 (Option A).This command allows OSPF to ignore the MTU size when determining if it can form an adjacency with a neighbor12.This means that even if the MTU sizes do not match, OSPF will still form an adjacency, and R1 and R2 will become neighbors12.


OSPF MTU Mismatch - NetworkLessons.com

Understanding OSPF MTU Mismatch Conditions and Solutions - Cisco

by Hui at Jul 14, 2024, 08:52 PM

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Vincenza
16 days ago
Wait, the device has a clock? I thought we were just supposed to wing it and hope the logs make sense!
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Xuan
19 days ago
Ah, the good old 'is the clock right?' troubleshooting step. Can't go wrong with a trusty NTP server!
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Denise
23 days ago
This question is a real head-scratcher! I'm just going to guess and hope for the best. *rolls dice*
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Viola
24 days ago
I'm not sure why the other options wouldn't work. Doesn't the service timestamps log command also help with time consistency?
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Annette
2 months ago
Option D is the right choice. Synchronizing the device clock with an NTP server ensures that the log entries match the actual time on the device.
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Lenita
26 days ago
D) Make sure that the clock on the device is synchronized with an NTP server.
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Kiley
1 months ago
A) Configure the service timestamps log uptime command in global configuration mode.
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Jillian
2 months ago
I'm not sure, but configuring the service timestamps log datetime localtime command also sounds like a good option.
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Alonso
2 months ago
I agree with Corinne, syncing the clock with an NTP server should fix the issue.
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Corinne
2 months ago
I think the answer is D.
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