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F5 Networks 201 Exam - Topic 10 Question 97 Discussion

A virtual server is listening at 10.10.1.100:any and has the following iRule associated with it:when CLIENT_ACCEPTED { if {[TCP::local_port] equals 21 } { poolftppool } elseif {[TCP::local_port] equals 23 } { pool telnetpool }If a user connects to 10.10.1.100 and port 22, which pool will receive the request?
D) Unknown. The pool cannot be determined from the information provided.
A) ftppool
B) telnetpool
C) None. The request will be dropped.

F5 Networks 201 Exam - Topic 10 Question 97 Discussion

Actual exam question for F5 Networks's 201 exam
Question #: 97
Topic #: 10
[All 201 Questions]

A virtual server is listening at 10.10.1.100:any and has the following iRule associated with it:

when CLIENT_ACCEPTED { if {[TCP::local_port] equals 21 } { pool

ftppool } elseif {[TCP::local_port] equals 23 } { pool telnetpool }

If a user connects to 10.10.1.100 and port 22, which pool will receive the request?

Show Suggested Answer Hide Answer
Suggested Answer: D

by Leigha at Sep 14, 2024, 08:46 AM

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Mable
8 months ago
I thought it might route to a different pool!
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Layla
8 months ago
I agree, it should go to none.
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Lai
8 months ago
Wait, what happens if it's port 22?
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Sena
9 months ago
Definitely going to be dropped.
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Nieves
9 months ago
The iRule only checks for ports 21 and 23.
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Lai
9 months ago
This is tricky! I want to say it could be unknown, but I lean towards it being dropped since there's no matching pool.
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Margart
9 months ago
I'm not entirely sure, but I think port 22 isn't mentioned in the iRule, so maybe it goes to none?
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Rolande
9 months ago
I feel like I've seen a similar question before where a port not matching any condition led to a default action.
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Maryann
9 months ago
I remember studying iRules, and I think if the port isn't specified in the conditions, it might just drop the request.
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Eun
9 months ago
I'm a bit confused here. The iRule is checking for specific ports, but the question mentions a different port. I'm not sure if there's some additional context I'm missing that would help determine the correct pool.
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Rachael
9 months ago
Okay, let's see. The iRule is checking for ports 21 and 23, but the user connected to port 22, which isn't mentioned. I'm not sure if the request will be dropped or if there's some other behavior I'm missing.
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Deonna
9 months ago
Hmm, this looks tricky. The iRule is checking the local port, but the question says the user connected to port 22, which isn't covered in the iRule. I'll need to think this through carefully.
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Lindsey
10 months ago
I think the answer is C. None of the conditions in the iRule match port 22, so the request should be dropped. The iRule doesn't have a catch-all case, so anything that doesn't match the specific ports will be dropped.
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Christiane
2 years ago
This is a classic case of 'the devil is in the details'. The iRule only covers FTP and Telnet, so C is the correct answer.
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Detra
2 years ago
Wait, if the request is on port 22, and the iRule doesn't have a condition for that, wouldn't it just get dropped? I'm going with C.
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Ming
2 years ago
C) None. The request will be dropped.
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Bernardine
2 years ago
B) telnetpool
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Teri
2 years ago
A) ftppool
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Lizette
2 years ago
That makes sense, I see your point. Thanks for clarifying!
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Layla
2 years ago
I disagree, I believe the answer is A) ftppool because port 22 is not mentioned in the iRule.
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Lizette
2 years ago
I think the answer is C) None. The request will be dropped.
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Dierdre
2 years ago
Haha, looks like the network admin forgot to add a catch-all rule for any other ports. I'm guessing the request will be dropped, so C is the right answer.
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Cathern
2 years ago
Haha, looks like the network admin forgot to add a catch-all rule for any other ports. I'm guessing the request will be dropped, so C is the right answer.
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Lynsey
2 years ago
C) None. The request will be dropped.
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Maira
2 years ago
B) telnetpool
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Velda
2 years ago
A) ftppool
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Eden
2 years ago
Definitely C) None. The request will be dropped since there's no specific rule for port 22.
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Clarence
2 years ago
Yeah, it seems like the admin missed that catch-all rule. C) None. The request will be dropped.
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Barrie
2 years ago
I think you're right, C) None. The request will be dropped.
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Adria
2 years ago
Hmm, this is a tricky one. The iRule doesn't seem to handle the case for port 22, so I'm going to go with D. The pool can't be determined from the information provided.
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Verda
2 years ago
The iRule only checks for port 21 (FTP) and port 23 (Telnet), so the request on port 22 (SSH) will not match any of the conditions. I think the correct answer is C.
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Chery
2 years ago
C) None. The request will be dropped.
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