GAQM CPEH-001 Exam - Topic 3 Question 129 Discussion

Actual exam question for GAQM's CPEH-001 exam

Question #: 129
Topic #: 3

[All CPEH-001 Questions]

Which of the following ICMP message types are used for destinations unreachables?

C11

D13

E17

Show Suggested Answer

Suggested Answer: B

Type 3 messages are used for unreachable messages. 0 is Echo Reply, 8 is Echo request, 11 is time exceeded, 13 is timestamp and 17 is subnet mask request. Learning these would be advisable for the test.

by Staci at Jun 27, 2026, 05:43 PM

Limited Time Offer

25%

Off

Get Premium CPEH-001 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Bok

2 days ago

Agreed! B) 3 is definitely the right choice. It covers various unreachable scenarios.

upvoted 0 times

...

Rene

7 days ago

I think the answer is B) 3. It's the most common one for unreachable destinations.

upvoted 0 times

...

Lajuana

12 days ago

Nah, type 0 is for echo replies, not unreachable.

upvoted 0 times

...

Kattie

17 days ago

I thought type 0 was a thing too?

upvoted 0 times

...

Edda

22 days ago

Wait, what about type 11? Isn't that also related?

upvoted 0 times

...

Antione

27 days ago

Totally agree, type 3 is the one!

upvoted 0 times

...

Jolanda

1 month ago

ICMP type 3 is for destination unreachable!

upvoted 0 times

...

Adela

1 month ago

I think type 3 is definitely the right answer, but I might have mixed up the others in my studies.

upvoted 0 times

...

Evangelina

1 month ago

I feel like type 0 and type 13 are not related to unreachable messages, but I can't recall exactly what they are for.

upvoted 0 times

...

Andree

2 months ago

I remember practicing a question like this, and I believe type 11 is related to time exceeded, not unreachable.

upvoted 0 times

...

Lashandra

2 months ago

I think ICMP type 3 is for destination unreachable, but I'm not entirely sure about the others.

upvoted 0 times

...