Which feature of NLB allows the backend server to see the original client IP address and port without using X-Forwarded-For headers?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: Preserve Source IP (for instance-type targets)

For instance-type targets, NLB is a pass-through load balancer that preserves the original IP packets....

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Real Exam ScenarioNetwork Load Balancer

Which feature of NLB allows the backend server to see the original client IP address and port without using X-Forwarded-For headers?

✓ Correct Answer & ExplanationNetwork Load Balancer

Correct Answer

Preserve Source IP (for instance-type targets)

Why This Answer Is Correct

For instance-type targets, NLB is a pass-through load balancer that preserves the original IP packets.

📚 What This Question Tests

This question evaluates your knowledge of Network Load Balancer — a core concept tested in AWS Certified Solutions Architect – Associate (SAA-C03). Understanding Network Load Balancer is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.