Huawei H12-821_V1.0 Exam - Topic 4 Question 90 Discussion

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

Question #: 90
Topic #: 4

To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non-backbone areas and allows sing routing information only within an area or between the backbone area and a non-backbone area. Therefore, each ABR must be connected to the backbone area.

ATRUE

BFALSE

Show Suggested Answer

Suggested Answer: A

OSPF (Open Shortest Path First) mandates that the backbone area (Area 0) serves as the central area for routing information exchange. To avoid inter-area routing loops, routing information is only exchanged between the backbone area and non-backbone areas, not directly between two non-backbone areas. Consequently, each Area Border Router (ABR) must connect to the backbone area to facilitate this routing exchange .

by Samira at Nov 19, 2025, 06:57 PM

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Providencia

1 day ago

I lean towards FALSE. But I see the logic in TRUE too.

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Skye

6 days ago

TRUE for sure. Backbone is essential for routing info flow.

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Maxima

11 days ago

No, definitely TRUE. It’s all about preventing loops.

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Weldon

17 days ago

I thought there were exceptions to that rule?

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Ligia

22 days ago

Yeah, I've seen this in practice, it really works!

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Erasmo

27 days ago

Wait, are you saying non-backbone areas can't share routes at all?

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Art

2 months ago

That's true, ABRs need to connect to the backbone.

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Justa

2 months ago

Wait, so OSPF is like a strict parent, not letting the areas wander off on their own? Sounds like a real control freak!

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Cordelia

2 months ago

B) FALSE, I'm pretty sure that's the right answer here.

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Pamella

2 months ago

A) TRUE, definitely. OSPF is all about keeping those routing tables clean and tidy.

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Isadora

2 months ago

Hmm, I'm not so sure about that. I'll have to think it through again.

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Dyan

2 months ago

That's a tricky one, but I think the answer is A) TRUE.

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Suzi

3 months ago

Yeah, I recall something about routing loops and ABRs needing to connect to the backbone, so I’m leaning towards true.

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Timothy

3 months ago

I thought OSPF allowed some flexibility between areas, but now I'm second-guessing if it really restricts routing info like this.

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Sue

3 months ago

I'm not entirely sure, but I feel like there was a practice question about ABRs needing to connect to the backbone area.

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Albina

3 months ago

Easy peasy! The statement clearly says that OSPF doesn't allow advertising routing info between two non-backbone areas, and that each ABR must be connected to the backbone. That means the answer is TRUE.

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Alisha

3 months ago

I'm not 100% sure about this one. The wording is a bit tricky, and I want to make sure I'm interpreting the OSPF rules correctly. I'll have to think it through step-by-step.

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Michel

3 months ago

Okay, I've got this. OSPF requires each ABR to be connected to the backbone area in order to prevent routing loops between non-backbone areas. So the statement is TRUE.

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Mauricio

4 months ago

I'm not so sure. Could it be FALSE? Maybe there are exceptions?

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Ellen

4 months ago

I think this is true because I remember OSPF's rules about area connections and the backbone being essential.

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Ozell

4 months ago

I think it's TRUE. OSPF needs the backbone for stability.

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Della

4 months ago

Agreed, TRUE. No loops if ABRs connect to the backbone.

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Elbert

4 months ago

Totally agree, OSPF's design prevents loops effectively.

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Stevie

5 months ago

Hmm, I'm a bit confused on the details of OSPF area connectivity. I'll need to review my notes on inter-area routing to make sure I understand this concept fully before answering.

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Dallas

5 months ago

This seems like a straightforward true/false question. I think the key is understanding the OSPF area structure and how routing information is advertised between areas.

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