Exam AWS Certified Developer Associate topic 1 question 47 discussion

https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/x-forwarded-headers.html#x-forwarded-for The X-Forwarded-For request header helps you identify the IP address of a client when you use an HTTP or HTTPS load balancer. Because load balancers intercept traffic between clients and servers, your server access logs contain only the IP address of the load balancer. To see the IP address of the client, use the X-Forwarded-For request header. Elastic Load Balancing stores the IP address of the client in the X-Forwarded-For request header and passes the header to your server.

C. Alter the application code to inspect the X-Forwarded-For header. Ensure that the code can work properly if a list of IP addresses is passed in the header.

C) Correct - When an Application Load Balancer (ALB) is used, it typically proxies incoming requests to the backend application. The ALB adds a special HTTP header called X-Forwarded-For to the request. This header contains the original client IP address (or a list of IP addresses, if there are multiple proxies in between). By inspecting this header, the application can extract the original client IP address, even though the IP address that reaches the application is the IP of the ALB.

yes C is the correct

The rigth answer is C, we can use X-Forwarded-For header to retrive the client IP. If we get the IP address directly from the request it will always be the same because the request comes from the ALB

https://docs.aws.amazon.com/elasticloadbalancing/latest/application/x-forwarded-headers.html

C easy

The X-Forwarded-For request header helps you identify the IP address of a client

"The X-Forwarded-For (XFF) HTTP header field is a common method for identifying the originating IP address of a client connecting to a web server through an HTTP proxy or load balancer." http://en.wikipedia.org/wiki/X-Forwarded-For

Answer: C

Answer: C

Ans :C

The answer is C.

definitely C

C is correct

https://aws.amazon.com/premiumsupport/knowledge-center/elb-capture-client-ip-addresses/ "For Application Load Balancers and Classic Load Balancers with HTTP/HTTPS listeners, you must use X-Forwarded-For headers to capture client IP addresses. "

Resp: C