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Alibaba ACA-Operator Exam - Topic 9 Question 80 Discussion

Actual exam question for Alibaba's ACA-Operator exam
Question #: 80
Topic #: 9
[All ACA-Operator Questions]

When using Alibaba Cloud CDN, a visitor's request will first be routed to a CDN edge node, and in the event of a cache miss at this edge node, the node will fetch data from the origin site (back-to-source request). Even with this redirection, it is possible for the origin site to see the visitor's real IP address. Which of the following statements about obtaining the visitor's real IP address are correct? (Number of correct answers: 2)

A visitor's real IP address can only be obtained by modifying the site or web application.

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Suggested Answer: B, C

by Charlie at Mar 07, 2025, 06:20 AM

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Roxanne
3 months ago
A seems a bit misleading, I thought there were other ways to get the real IP.
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Eulah
3 months ago
C is spot on, that extension is a lifesaver for tracking IPs!
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Aja
3 months ago
Wait, can you really get the real IP without modifying the site? Sounds off.
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Arleen
4 months ago
I think D is also right, pretty sure you can see IPs in the logs.
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Carlee
4 months ago
B is correct, that's how it works!
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Timmy
4 months ago
I feel like modifying the site is a common requirement, but I can't remember if it's the only way to get the real IP.
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Latrice
4 months ago
I'm a bit confused about the IIS extension. I feel like I read about it, but I can't recall if it's necessary for logging real IPs.
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Brittani
4 months ago
I think option D sounds familiar; I practiced a question about enabling features in the Alibaba Cloud CDN console.
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Audry
5 months ago
I remember something about the 'X-Forwarded-For' header being important for tracking real IPs, but I'm not sure if it's the only way.
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Magnolia
5 months ago
This looks straightforward. The correct answers are B and D - the visitor's real IP can be found in the logs, either through the 'X-Forwarded-For' header or by enabling the 'record visitor's real IP' function in the CDN console.
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Caitlin
5 months ago
I'm a bit confused about the difference between modifying the site and using the CDN console. I'll need to review the details on those options.
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Catalina
5 months ago
Okay, I think I've got a good handle on this. The key is understanding how the 'X-Forwarded-For' header works and where to find the visitor's real IP in the logs.
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Howard
5 months ago
Hmm, this seems like a tricky one. I'll need to carefully read through the options and think about how Alibaba Cloud CDN handles visitor IP addresses.
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Lourdes
11 months ago
I hope the correct answer isn't hidden behind a paywall or something. Alibaba Cloud sure loves their premium features!
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Gerri
11 months ago
I'm going with B and D. Seems like the most straightforward way to get the visitor's real IP address when using Alibaba Cloud CDN.
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Mattie
10 months ago
Activating the 'record visitor's real IP' function in the Alibaba Cloud CDN console seems like the easiest way to view visitor's IP addresses.
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Lashon
10 months ago
Yes, the visitor's real IP address is indeed stored in the 'X-Forwarded-For' HTTP header.
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Shad
10 months ago
I think B and D are the correct options.
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Effie
11 months ago
I'm not sure about C, but I think activating the 'record visitor's real IP' function in Alibaba Cloud CDN console is a good way to obtain the IP address.
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Glendora
11 months ago
I agree with Chan, because the real IP address is usually stored in the 'X-Forwarded-For' header.
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Afton
11 months ago
Haha, I bet the developer who wrote option A has never heard of 'X-Forwarded-For' before. Good luck trying to get the real IP without that!
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Adelaide
10 months ago
C) In Windows, if IIS is used, after installing the \'F5XForwardedFor\' extension module, the visitor's real IP address can be seen via IIS logs.
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Trinidad
11 months ago
B) visitor's real IP address is stored in the \'X-Forwarded-For\' HTTP header. It can be directly obtained via Apache or NGINX logs.
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Chan
11 months ago
I think the correct answers are B and D.
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Gail
12 months ago
Option C is interesting, but I'm not sure if it's applicable in this case since we're talking about Alibaba Cloud CDN, not a local web server.
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Ellen
11 months ago
Option C is interesting, but I'm not sure if it's applicable in this case since we're talking about Alibaba Cloud CDN, not a local web server.
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Jules
11 months ago
D) You can activate the `record visitor's real IP` function in the Alibaba Cloud CDN console, then you can directly view visitor's IP addresses from the Alibaba Cloud CDN access logs.
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Mitsue
11 months ago
B) visitor's real IP address is stored in the `X-Forwarded-For` HTTP header. It can be directly obtained via Apache or NGINX logs.
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Marion
12 months ago
I think the answer is B and D. The visitor's real IP address is stored in the 'X-Forwarded-For' header, and Alibaba Cloud CDN provides an option to record the real IP address in their access logs.
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Celia
11 months ago
Yes, and you can also activate the 'record visitor's real IP' function in the Alibaba Cloud CDN console to view visitor's IP addresses.
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Gertude
12 months ago
I agree, the visitor's real IP address can be found in the 'X-Forwarded-For' header.
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