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GAQM CPEH-001 Exam - Topic 4 Question 103 Discussion

Actual exam question for GAQM's CPEH-001 exam
Question #: 103
Topic #: 4
[All CPEH-001 Questions]

A specific site received 91 ICMP_ECHO packets within 90 minutes from 47 different sites. 77 of the ICMP_ECHO packets had an ICMP ID:39612 and Seq:57072. 13 of the ICMP_ECHO packets had an ICMP ID:0 and Seq:0. What can you infer from this information?

Show Suggested Answer Hide Answer
Suggested Answer: B

Firewalking uses a traceroute-like IP packet analysis to determine whether or not a particular packet can pass from the attacker's host to a destination host through a packet-filtering device. This technique can be used to map 'open' or 'pass through' ports on a gateway. More over, it can determine whether packets with various control information can pass through a given gateway.


by Rosina at Nov 15, 2024, 10:36 AM

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Cherry
3 months ago
All from the same LAN? Nah, that doesn't add up.
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Talia
3 months ago
Wait, how can 13 packets have ID 0? Seems sketchy.
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Ceola
3 months ago
I think it's more likely a worm, too many sources.
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Kattie
4 months ago
Definitely looks like a tool was used for those IDs.
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Paola
4 months ago
That's a lot of packets in a short time!
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Julieta
4 months ago
The mention of ICMP ID 0 and Seq 0 makes me think those packets could be from a NAT environment, but I wonder if that's too much of a leap without more context.
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Lorita
4 months ago
It seems plausible that all 77 packets could come from the same LAN segment, but I feel like that might be too simplistic given the number of different sources involved.
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Lemuel
4 months ago
I remember a practice question about ICMP packets, and it mentioned that a lot of identical IDs could indicate a possible attack or spoofing, but I'm not confident about the specifics here.
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Darnell
5 months ago
I'm not entirely sure, but I think the ICMP ID and Seq numbers being the same for 77 packets might suggest they were generated by a tool rather than a normal OS behavior.
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Carlton
5 months ago
This looks like it could be a network security scenario. I'm going to focus on analyzing the packet information and considering the potential implications.
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Pearline
5 months ago
I'm a bit confused by the different ICMP ID and Seq numbers. I'll need to think through how those might relate to the other details provided.
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Sherly
5 months ago
The ICMP ID and Seq numbers seem like they could be a clue. I'm leaning towards option B, but I want to double-check my reasoning.
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Aleisha
5 months ago
Okay, let's break this down. The key information is the ICMP ID and Sequence numbers, as well as the number of packets and sites. I think I have a strategy to approach this.
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Adela
5 months ago
This question seems straightforward, but I want to make sure I understand the details before answering.
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Almeta
10 months ago
Option C seems reasonable, but I'm not sure if all 77 packets necessarily came from the same LAN. Could be a coordinated attack from multiple segments.
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Maddie
8 months ago
C) All 77 packets came from the same LAN segment and hence had the same ICMP ID and Seq number
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Lorean
8 months ago
B) ICMP ID and Seq numbers were most likely set by a tool and not by the operating system
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Chanel
8 months ago
A) The packets were sent by a worm spoofing the IP addresses of 47 infected sites
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Tijuana
10 months ago
Haha, I bet the person who wrote this question is a real ICMP_ECHO fanatic. Gotta love those packet IDs and sequences!
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Louis
8 months ago
C) All 77 packets came from the same LAN segment and hence had the same ICMP ID and Seq number
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Judy
9 months ago
B) ICMP ID and Seq numbers were most likely set by a tool and not by the operating system
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Kip
9 months ago
A) The packets were sent by a worm spoofing the IP addresses of 47 infected sites
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Colby
10 months ago
I'm leaning towards A. 47 different sites sending spoofed packets sounds like a worm to me.
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Bernardine
9 months ago
D) 13 packets were from an external network and probably behind a NAT, as they had an ICMP ID 0 and Seq 0
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Cristen
10 months ago
B) ICMP ID and Seq numbers were most likely set by a tool and not by the operating system
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Bobbye
10 months ago
A) The packets were sent by a worm spoofing the IP addresses of 47 infected sites
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Nilsa
10 months ago
I'm going with D. The packets with ICMP ID 0 and Seq 0 are probably from behind a NAT, which makes sense for an external network.
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Rolland
9 months ago
I'm leaning towards C. All 77 packets having the same ID and Seq could mean they came from the same LAN segment.
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Jamal
9 months ago
D makes sense to me too. The packets with ID 0 and Seq 0 are likely from behind a NAT.
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Alysa
10 months ago
I agree with A. It's possible that the packets were sent by a worm spoofing IP addresses.
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Terrilyn
10 months ago
I think B is more likely. The ID and Seq numbers seem to be set by a tool, not the OS.
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Louvenia
10 months ago
Hmm, I think the answer is B. The ICMP ID and Seq numbers seem too precise to be set by an operating system. This is likely the work of a tool.
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Jovita
9 months ago
User2: Definitely, it's more likely that a tool set those numbers rather than the operating system.
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Lilli
10 months ago
User1: I agree, the precision of the ICMP ID and Seq numbers does seem suspicious.
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Edwin
11 months ago
I agree with option D, as the 13 packets with ICMP ID 0 and Seq 0 were probably from an external network behind a NAT.
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Thora
11 months ago
I believe the ICMP ID and Seq numbers were most likely set by a tool and not by the operating system.
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Jacinta
11 months ago
I think the packets were sent by a worm spoofing the IP addresses of infected sites.
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