An Application Needs to Use the IP Address of the Client

question 410

Multiple Choice

An application needs to use the IP address of the client in its processing. The application has been moved into AWS and has been placed behind an Application Load Balancer (ALB) . However, all the client IP addresses now appear to be the same. The application must maintain the ability to scale horizontally. Based on this scenario, what is the MOST cost-effective solution to this problem?

• A) Remove the application from the ALB. Delete the ALB and change Amazon Route 53 to direct traffic to the instance running the application.
• B) Remove the application from the ALB. Create a Classic Load Balancer in its place. Direct traffic to the application using the HTTP protocol.
• 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. 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.
• D) Alter the application code to inspect a custom header. Alter the client code to pass the IP address in the custom header.

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Definitions:

Source of Emotions

The origin processes within the brain and body that give rise to feelings such as happiness, anger, sadness, and fear.

Thalamus

A crucial structure located in the center of the brain that acts as the main relay station for sensory information headed to the cerebral cortex.

Emotional Stimulus

Any object, event, or situation that evokes an emotional response.

Theory of Emotion

A set of ideas aimed at explaining how and why people experience emotions, including the physiological and psychological processes involved.