GIAC Exam GCIH Topic 12 Question 43 Discussion

Actual exam question for GIAC's GCIH exam

Question #: 43
Topic #: 12

[All GCIH Questions]

Which of the following is an Internet mapping technique that relies on various BGP collectors that collect information such as routing updates and tables and provide this information publicly?

AAS Route Inference

BPath MTU discovery (PMTUD)

CAS PATH Inference

DFirewalking

Show Suggested Answer

Suggested Answer: C

by Ezekiel at Jul 10, 2025, 12:25 AM

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Lauryn

24 hours ago

C) AS PATH Inference sounds good to me. I bet the exam writers are trying to trick us with those other options. Nice try, but I'm on to you!

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Angella

4 days ago

Wait, isn't Firewalking that technique where you try to figure out what's behind a firewall? I'm not sure that's the right answer here.

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Mabel

6 days ago

I think D) Firewalking is definitely not the answer, so it must be C) AS PATH Inference.

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Judy

11 days ago

I'm pretty sure it's A) AS Route Inference. That's the one that uses BGP collectors, isn't it? The others seem a bit too specific.

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Victor

24 days ago

I'm not sure, but AS Route Inference doesn't sound right to me.

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Tarra

27 days ago

Hmm, I think it's C) AS PATH Inference. That's the one that uses BGP data to map the internet, right?

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Ellsworth

4 days ago

I believe it's AS Route Inference, but I can see why you would think it's AS PATH Inference.

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Candida

7 days ago

Yes, you're correct! AS PATH Inference uses BGP data to map the internet.

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Mayra

1 months ago

I agree with Alesia, AS PATH Inference makes sense.

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Alesia

1 months ago

I think the answer is C) AS PATH Inference.

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