Huawei Exam H12-831_V1.0 Topic 1 Question 44 Discussion

Actual exam question for Huawei's H12-831_V1.0 exam

Question #: 44
Topic #: 1

The router ID of R4 is 10.0.4.4. The LSA shown in the figure is displayed in the LSDB of R4.

Which of the following statements are true about the LSA?

A. The three LSAs belong to area 1. B. Area 1 is a stub area. C. No OSPFv3 neighbor relationship is established on at least one link of R4. D. R4 is the DR on a link.

AThe three LSAs belong to area 1. (True)
The table explicitly shows 'Intra-Area-Prefix-LSA (Area 0.0.0.1)', meaning all LSAs are for Area 1.
The Link State IDs also indicate intra-area advertisements.
Statement A is correct.

BArea 1 is a stub area. (False)
There is no indication that Area 1 is a stub area.
Stub areas do not receive Type 5 (External) LSAs, and the LSDB does not show Type 3 (Inter-Area) LSAs either.
Network-LSAs (Type 2) are not typically seen in stub areas unless explicitly configured.
Statement B is incorrect.

CNo OSPFv3 neighbor relationship is established on at least one link of R4. (True)
One LSA references a Router-LSA, while two reference Network-LSAs.
A Router-LSA alone suggests that R4 has at least one point-to-point or unnumbered link with no OSPFv3 adjacency.
This means R4 has an interface with no neighbor (e.g., a passive interface or down link).
Statement C is correct.

DR4 is the DR on a link. (True)
The presence of Network-LSAs (Type 2) indicates that a multi-access link exists.
Since R4 is the origin of the Network-LSA, it must be the DR (Designated Router) for that link.
Statement D is correct.
Final Conclusion:
A. The three LSAs belong to area 1. (True)
B. Area 1 is a stub area. (False)
C. No OSPFv3 neighbor relationship is established on at least one link of R4. (True)
D. R4 is the DR on a link. (True)
Thus, the correct answers are: A, C, D.

Show Suggested Answer

Suggested Answer: A

by Viola at Apr 27, 2024, 05:18 AM

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Nieves

1 months ago

Designated Router? More like Designated Roofer, amirite?

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Evette

24 days ago

Looks like R4 has some important responsibilities in this network.

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Rikki

26 days ago

Yeah, R4 is the DR on a link according to the LSAs.

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Leah

1 months ago

Haha, Designated Roofer, I like that!

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Deandrea

1 months ago

No OSPFv3 neighbor relationship? I bet someone's router is having a bad day.

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Leana

3 days ago

Hopefully they can troubleshoot and get it resolved quickly.

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Truman

26 days ago

It could be a configuration problem or a physical issue with the link.

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Galen

30 days ago

That's right, no OSPFv3 neighbor relationship means there might be some network issues.

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Tuyet

2 months ago

R4 must be the DR for that link.

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Cathern

2 months ago

Yes, since it's the origin of the Network-LSA.

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Huey

2 months ago

Stub area? Really? I guess they're trying to trick us. Good thing I read the question carefully.

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Fatima

3 days ago

Definitely, the key was in analyzing the LSAs and the network setup.

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Hobert

7 days ago

I know, but it was a good thing we paid attention to the details.

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Shannan

1 months ago

Yeah, they tried to throw us off with that stub area option.

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Refugia

2 months ago

And is R4 the DR on a link?

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Tuyet

2 months ago

That's right. R4 has a link with no OSPFv3 adjacency.

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Cathern

2 months ago

There's at least one link with no neighbor on R4.

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Refugia

2 months ago

I see. What about the OSPFv3 neighbor relationship on R4?

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Tuyet

2 months ago

Exactly, stub areas don't receive Type 5 LSAs.

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Cathern

2 months ago

No, there's no indication that it's a stub area.

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Refugia

2 months ago

But is Area 1 a stub area?

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Tuyet

2 months ago

Yes, that's correct. The LSAs are all for Area 1.

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Cathern

2 months ago

I think the LSAs belong to area 1.

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Edda

2 months ago

Yes, one of the LSAs indicates that. R4 must have a link with no neighbor.

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Burma

2 months ago

Do you think R4 has no OSPFv3 neighbor on at least one link?

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Jina

2 months ago

Area 1? I thought it was Area 0.0.0.1. Looks like someone needs to brush up on their OSPF knowledge.

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Lottie

18 days ago

The presence of Network-LSAs (Type 2) indicates that a multi-access link exists. Statement D is correct.

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Cary

20 days ago

One LSA references a Router-LSA, while two reference Network-LSAs. Statement C is correct.

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Talia

1 months ago

The table explicitly shows 'Intra-Area-Prefix-LSA (Area 0.0.0.1)', meaning all LSAs are for Area 1. Statement A is correct.

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Jamal

1 months ago

I thought it was Area 0.0.0.1. Looks like someone needs to brush up on their OSPF knowledge.

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Edda

2 months ago

Yes, that's correct. The LSAs are for Area 1.

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Burma

2 months ago

I think the LSAs belong to area 1.

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