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F5 Networks F5CAB3 Exam - Topic 2 Question 4 Discussion

Actual exam question for F5 Networks's F5CAB3 exam
Question #: 4
Topic #: 2
[All F5CAB3 Questions]

A BIG-IP Administrator creates a new Virtual Server to load balance SSH traffic. Users are unable to log on to the servers.

What should the BIG-IP Administrator do to resolve the issue?

Show Suggested Answer Hide Answer
Suggested Answer: B

SSH is a TCP Layer 4 protocol. Applying an HTTP profile causes BIG-IP to expect HTTP headers, breaking SSH sessions. Removing the HTTP profile allows raw TCP forwarding.


by Tatum at Jan 26, 2026, 06:21 AM

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Dell
6 days ago
I feel like we had a similar question in practice about setting profiles. If it's SSH, I don't think an HTTP profile would even apply here.
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Shawna
11 days ago
I remember that SSH uses TCP, so I think setting the protocol to UDP is definitely not the right choice.
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Yesenia
16 days ago
Ah, I see what's going on here. The key is that the question is about SSH traffic, not HTTP. So the answer is definitely not B) Set HTTP Profile to None. I think the best option is A) Set Protocol to UDP, since that would ensure the BIG-IP is handling the SSH traffic correctly.
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Jeannetta
21 days ago
I'm pretty sure the answer is not C) Set Source Address to 10.1.1.2, since that wouldn't really address the issue of users not being able to log in. I'm going to go with B) Set HTTP Profile to None, since that seems the most relevant to the problem.
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Loise
26 days ago
Okay, let's see. The question says the users can't log in, so it's probably an issue with the protocol or the destination address. I'm leaning towards D) Set Destination Address/Mask to 0.0.0.0/0, but I'm not 100% sure.
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Candida
1 month ago
Hmm, I'm a bit confused. I thought the BIG-IP was used for load balancing, so maybe the answer has something to do with that? I'll need to think this through carefully.
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Anthony
1 month ago
I'm pretty sure the answer is B) Set HTTP Profile to None, since this is a question about SSH traffic and not HTTP.
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