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DVA-C02 · Question #173

An ecommerce application is running behind an Application Load Balancer. A developer observes some unexpected load on the application during non-peak hours. The developer wants to analyze patterns for

The correct answer is C. The X-Forwarded-For header. The X-Forwarded-For HTTP header contains the IP address of the original client that made the request. The developer can use this header to analyze patterns for the IP addresses of clients using the application.

Submitted by thandi_sa· Mar 5, 2026Troubleshooting and Optimization

Question

An ecommerce application is running behind an Application Load Balancer. A developer observes some unexpected load on the application during non-peak hours. The developer wants to analyze patterns for the client IP addresses that use the application. Which HTTP header should the developer use for this analysis?

Options

  • AThe X-Forwarded-Proto header
  • BThe X-Forwarded-Host header
  • CThe X-Forwarded-For header
  • DThe X-Forwarded-Port header

How the community answered

(47 responses)
  • A
    2% (1)
  • B
    9% (4)
  • C
    87% (41)
  • D
    2% (1)

Explanation

The X-Forwarded-For HTTP header contains the IP address of the original client that made the request. The developer can use this header to analyze patterns for the IP addresses of clients using the application.

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