Huawei Exam H12-821_V1.0 Topic 1 Question 54 Discussion

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

Question #: 54
Topic #: 1

On an OSPF network, an algorithm is used to prevent loops within an area, but loops may occur between areas. Therefore, OSPF defines a loop prevention mechanism for inter-area routes. Which of the following statements are true about the loop prevention mechanism?

AInter-area routes cannot be directly transmitted between non-backbone areas.

BAll non-backbone areas must be directly connected to area 0.

CInter-area routes need to be forwarded through area 0.

DAn ABR cannot inject Type 3 LSAs that describe routes to a network segment in an area back to the same area.

Show Suggested Answer

Suggested Answer: B

by Nana at Mar 19, 2024, 04:36 PM

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Lonna

29 days ago

Hmm, I wonder if the loop prevention mechanism is a feature or a bug. Maybe OSPF should just embrace the chaos and let the routers duke it out.

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Alyce

1 months ago

This question is making my head spin. I'll just remember to always use area 0 for inter-area communication and hope for the best!

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Avery

12 days ago

I always make sure to use area 0 for inter-area communication to avoid loops.

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Freeman

1 months ago

Wait, so OSPF can have loops between areas? I thought it was a loop-free protocol. What is this sorcery?

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Alyce

11 days ago

C) Inter-area routes need to be forwarded through area 0.

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Filiberto

26 days ago

B) All non-backbone areas must be directly connected to area 0.

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Denny

30 days ago

A) Inter-area routes cannot be directly transmitted between non-backbone areas.

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Myrtie

2 months ago

I think option D is also true. ABRs can't inject Type 3 LSAs back into the same area, which helps with loop prevention.

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Sunshine

1 months ago

User 2: That makes sense. It's an important mechanism to maintain the stability of the OSPF network.

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Osvaldo

1 months ago

User 1: I agree, option D is correct. It helps prevent loops by not allowing ABRs to inject LSAs back into the same area.

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Dominga

2 months ago

I believe option D is also true. An ABR cannot inject Type 3 LSAs back to the same area to prevent loops.

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Nadine

2 months ago

Option C seems correct to me. Inter-area routes need to be forwarded through area 0 to prevent loops between areas.

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Annabelle

12 days ago

That's correct. All non-backbone areas must be directly connected to area 0 to prevent loops.

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Jesus

16 days ago

So, inter-area routes cannot be directly transmitted between non-backbone areas, right?

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Mitzie

22 days ago

Yes, that's right. It helps prevent loops between areas on an OSPF network.

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Sharen

1 months ago

I think option C is correct. Inter-area routes do need to be forwarded through area 0.

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Anissa

2 months ago

I agree with Leanora. Option A makes sense as a loop prevention mechanism for inter-area routes.

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Leanora

2 months ago

I think option A is true because inter-area routes cannot be directly transmitted between non-backbone areas.

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