Discuss GIAC GCED Exam Topic 3 Question 38

Enabling port security prevents which of the following?

AUsing vendors other than Cisco for switching equipment as they don't offer port security

BSpoofed MAC addresses from being used to cause a Denial of Service condition

CLegitimate MAC addresses from being used to cause a Denial of Service condition

DNetwork Access Control systems from functioning properly

Suggested Answer: C

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22 comments · newest first

Mickie 10 months ago

Agreed, it's a must-have for network security!

Ocie 11 months ago

Wait, can it really stop legitimate MAC addresses too?

Lynna 11 months ago

Definitely helps with DoS attacks, for sure!

Laurel 11 months ago

I thought it only applied to Cisco devices?

Sue 11 months ago

Port security is great for preventing spoofed MAC addresses!

Nieves 11 months ago

I don't think it affects Network Access Control systems directly, so I would lean towards option B as the correct answer.

Doug 12 months ago

I feel like I saw a practice question that mentioned legitimate MAC addresses being blocked, but I can't recall if that's what port security does.

Noble 12 months ago

I think option B sounds right because we talked about how port security can help mitigate DoS attacks by blocking those spoofed addresses.

Arthur 12 months ago

I remember studying that port security is mainly about preventing unauthorized devices from connecting, but I'm not sure if it specifically stops spoofed MAC addresses.

Melvin 12 months ago

I'm a little confused by the wording of the question. Does "enabling port security" mean that it's already enabled, or that you're enabling it for the first time? I want to make sure I understand the context before I answer.

Carolynn 12 months ago

Okay, I think I've got this. Port security is a security feature that restricts access to a port based on the MAC address of the connected device. So it would prevent spoofed MAC addresses from being used to cause a denial of service, which is option B.

Shawana 1 year ago

Hmm, I'm a bit unsure about this one. I know port security has something to do with MAC addresses, but I'm not sure if it's specifically for preventing spoofed addresses or just any kind of MAC address-related issues. I'll have to think about this one a bit more.

Merilyn 1 year ago

This one seems pretty straightforward. Port security is designed to prevent MAC address spoofing, so I'm going to go with option B.

Cecily 1 year ago

This is a good one. Port security is all about controlling access to ports and preventing unauthorized access, so option B seems like the correct answer here. I'm pretty confident in that.

Elise 1 year ago

I'm pretty sure the default Button Type for a Submit button is "submit", so I'll go with option B.

Rhea 1 year ago

The scope document seems like the obvious choice here. It defines the boundaries and parameters for the product development, so that should provide the best guidance.

Leanora 2 years ago

True, Cisco isn't the only one with port security. B fits best.

Marica 2 years ago

I'm confused about A, though. Isn't it unlikely?

Berry 2 years ago

Definitely B. Legitimate MAC addresses shouldn’t be affected.

Krystal 2 years ago

I agree. Spoofed MAC addresses causing DoS seems accurate.

Leanora 2 years ago

Yeah, I think the correct answer is B.

Daisy 2 years ago

This question on port security is interesting.

GIAC GCED Exam - Topic 3 Question 38 Discussion