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GIAC GCIH Exam - Topic 9 Question 51 Discussion

Actual exam question for GIAC's GCIH exam
Question #: 51
Topic #: 9
[All GCIH Questions]

with the appropriate term.

______ is a technique used to make sure that incoming packets are actually from the

networks that they claim to be from.

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Suggested Answer: A

by Floyd at Jan 23, 2026, 02:28 AM

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Karl
19 days ago
I think it's called packet filtering.
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Kerrie
25 days ago
I thought it was called source verification?
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Brandon
30 days ago
Yeah, but it’s just one layer of protection.
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Odette
1 month ago
Wait, is that really enough to prevent spoofing?
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Shasta
1 month ago
Totally agree, it's essential for network security.
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Eveline
2 months ago
That's called packet filtering!
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Anjelica
2 months ago
Source address verification, the bane of every network admin's existence. At least it's better than dealing with NAT issues!
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Cathrine
2 months ago
Source address verification, easy peasy. Now, how do I get my boss to stop asking me these questions during our weekly meetings?
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Dulce
2 months ago
I always get source address verification and destination address verification mixed up. Gotta work on that!
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Erin
2 months ago
Source address verification is the term you're looking for.
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Teddy
2 months ago
I feel like it might be "ingress filtering," but I could be mixing it up with another concept.
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Regenia
3 months ago
This sounds similar to a practice question we did on "IP spoofing" prevention methods. Could it be "authentication"?
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Antonio
3 months ago
I remember studying something about "source verification" techniques, but I can't recall the exact term.
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Holley
3 months ago
I think the term we're looking for is "packet filtering," but I'm not entirely sure if that's specific enough.
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Carmela
4 months ago
Ah, I know this one! It's got to be something like source address validation or network origin authentication. Gotta make sure those packets are legit, you know?
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Leota
4 months ago
Packet validation? Source authentication? I'm a bit unsure, but I think it has to do with confirming the origin of network traffic. I'll need to review my notes on network security concepts.
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Yoko
4 months ago
Okay, I've got this. This is asking about a technique to ensure the packets are coming from the right networks. I'm pretty confident it's something like source address verification or IP address validation.
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Chantay
4 months ago
Ugh, I'm not totally sure about this one. Packet authentication? Verifying network origins? I'll have to think it through carefully.
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Bernardo
4 months ago
Hmm, this seems like it could be about network security. I'm thinking it might be related to packet verification or source validation.
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