Huawei H12-821_V1.0 Exam - Topic 4 Question 96 Discussion

Actual exam question for Huawei's H12-821_V1.0 exam

Question #: 96
Topic #: 4

On an OSPF network, routers learn routing information on the entire network by exchanging LSAs. Which of the following values is the LS Age in the LSA header when an LSA is deleted?

A1800s

B3600s

C1200s

D600s

Show Suggested Answer

Suggested Answer: B

LSA Lifetime and Deletion

The LS Age field in the LSA header tracks the age of an LSA. When the LS Age reaches its maximum value (3600 seconds), the LSA is marked for deletion. This ensures old or stale LSAs are removed from the network to maintain accurate routing information.

HCIP-Datacom-Core Reference

Detailed explanation of LS Age behavior and LSA deletion processes can be found in the OSPF LSDB and LSA sections.

by Loreta at May 02, 2026, 02:46 AM

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Lai

6 hours ago

Definitely 600s, that's what I remember!

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Glory

5 days ago

I thought it was 1800s, but I guess I was wrong.

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Ruthann

11 days ago

It's 3600s when an LSA is deleted.

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Coletta

16 days ago

I’m pretty confident that the LS Age when an LSA is deleted is 600 seconds, but I should double-check that.

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Jospeh

2 months ago

I feel like 1800 seconds sounds familiar for some reason, but I might be mixing it up with another concept.

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Casey

2 months ago

I remember practicing a question about LSAs, and I think the age value was related to the time before it gets removed, but I can't recall the exact number.

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Jess

2 months ago

I think the LS Age for a deleted LSA is supposed to be 3600 seconds, but I'm not entirely sure.

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