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Wireshark WCNA Exam - Topic 3 Question 16 Discussion

Actual exam question for Wireshark's WCNA exam
Question #: 16
Topic #: 3
[All WCNA Questions]

You are performing a TCP scan on a target while capturing your traffic with Wireshark. Which statement about the analysis is correct?

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Suggested Answer: B

by Levi at Jul 04, 2025, 07:44 AM

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Santos
2 months ago
Definitely B, I've seen that happen a lot in scans.
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Cora
2 months ago
C is misleading, you can have UDP without TCP support.
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Jesusita
2 months ago
B is correct, ICMP usually means a firewall is in place.
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Iesha
3 months ago
Wait, D? A TCP RST means it's powered down? That's surprising!
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Jutta
3 months ago
I disagree, A doesn't make sense. Push responses don't mean blocked.
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Lemuel
3 months ago
I feel like a TCP RST response indicates the port is closed, not that the target is powered down.
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Tonja
3 months ago
I practiced a similar question where UDP responses were involved, and I think they don't necessarily mean TCP isn't supported.
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Micah
4 months ago
I think ICMP responses usually mean the port is firewalled, but I can't recall the exact details.
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Magdalene
4 months ago
I remember something about TCP Push responses, but I'm not sure if they indicate a blocked port or something else.
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Buffy
4 months ago
I think the key is to focus on the specific TCP responses mentioned in the options and what they indicate about the target's port status. I'll work through each option carefully.
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Reyes
4 months ago
Wait, I'm confused. Doesn't a TCP RST response mean the port is open, not that the target is not powered up? I need to double-check my TCP knowledge here.
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Gilbert
4 months ago
Okay, I've got this. If I see ICMP responses, that means the port is likely firewalled, which is option B. Easy peasy!
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Gilma
5 months ago
Hmm, I'm a bit unsure about this one. I need to make sure I understand the implications of the different TCP responses mentioned in the options.
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Merissa
5 months ago
This question seems straightforward. I'll review the options carefully and think through the TCP scan behavior to determine the correct answer.
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Peggie
7 months ago
I'm torn between B and D, but I think B is the safer bet. Who knows, maybe the target is just playing hard to get with those ICMP responses.
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Genevieve
7 months ago
Haha, C is a funny one. If I only get UDP responses, maybe the target just really hates TCP. Or it's a microwave posing as a server.
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Emile
5 months ago
User 3: Emile is right, it could be a possibility.
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Karl
5 months ago
User 2: Yeah, maybe the target just really hates TCP.
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Felton
6 months ago
User 1: Haha, C is a funny one.
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Joesph
7 months ago
User 1: Haha, C is a funny one. If I only get UDP responses, maybe the target just really hates TCP.
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Luisa
7 months ago
I think C) If only UDP responses are received, the target does not support TCP makes more sense.
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Natalya
7 months ago
I'm going with D. A TCP RST response means the target is up and running, just not listening on that port.
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Chaya
7 months ago
User2: Yeah, I agree. It's important to understand the different responses in Wireshark analysis.
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Makeda
7 months ago
User1: I think D is correct. The target is up but not listening on that port.
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Desmond
7 months ago
Option B sounds right to me. If I get ICMP responses, it means the port is likely blocked by a firewall.
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Starr
5 months ago
User 2: Yeah, that makes sense. It's a good indicator of a blocked port.
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Gilma
7 months ago
User 1: I think option B is correct. If we get ICMP responses, it means the port is likely firewalled.
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Rosita
7 months ago
I disagree, I believe the correct statement is D) If a TCP RST response is received, the target is not currently powered up.
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Colette
8 months ago
I think the correct statement is B) If you receive ICMP responses, the target port is likely firewalled.
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