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Exam AWS-SysOps topic 1 question 195 discussion

Exam question from Amazon's AWS-SysOps
Question #: 195
Topic #: 1
[All AWS-SysOps Questions]

A user has configured ELB with a TCP listener at ELB as well as on the back-end instances. The user wants to enable a proxy protocol to capture the source and destination IP information in the header. Which of the below mentioned statements helps the user understand a proxy protocol with TCP configuration?

  • A. If the end user is requesting behind a proxy server then the user should not enable a proxy protocol on ELB
  • B. ELB does not support a proxy protocol when it is listening on both the load balancer and the back-end instances
  • C. Whether the end user is requesting from a proxy server or directly, it does not make a difference for the proxy protocol
  • D. If the end user is requesting behind the proxy, then the user should add the ג€isproxyג€ flag to the ELB Configuration
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
When the user has configured Transmission Control Protocol (TCP. or Secure Sockets Layer (SSL) for both front-end and back-end connections of the Elastic
Load Balancer, the load balancer forwards the request to the back-end instances without modifying the request headers unless the proxy header is enabled. If the end user is requesting from a Proxy Protocol enabled proxy server, then the ELB admin should not enable the Proxy Protocol on the load balancer. If the Proxy
Protocol is enabled on both the proxy server and the load balancer, the load balancer will add another header to the request which already has a header from the proxy server. This duplication may result in errors.
by gretch at May 23, 2020, 7:40 p.m.
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Finger41
10 months, 1 week ago
Selected Answer: A
https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/enable-proxy-protocol.html
upvoted 1 times
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TroyMcLure
1 year, 6 months ago
Correct Answer: A
upvoted 1 times
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saurabh1805
1 year, 6 months ago
A is correct answer here as per below link https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/enable-proxy-protocol.html
upvoted 1 times
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gretch
1 year, 6 months ago
it's A https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-listener-config.html
upvoted 2 times
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