Question 543 of 1,621
ANS-C01 Network Design Practice Question
A company has an application that requires fixed IP addresses for whitelisting by third-party partners. The application is hosted on an Application Load Balancer (ALB) in a VPC. Which solution provides static IP addresses for the ALB?
⚠ Common exam trap
Test-takers frequently assume CloudFront provides static IPs (it does not — it uses a shared, dynamic IP range) or that an ALB can be assigned an Elastic IP (only NLBs support Elastic IP assignment), leading them to choose B or C instead of Global Accelerator.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Place an AWS Global Accelerator in front of the ALB.
AWS Global Accelerator provides two static IP addresses that act as fixed entry points for traffic. By placing it in front of an Application Load Balancer (ALB), you can whitelist these static IPs with third-party partners while the ALB itself remains dynamic. Global Accelerator uses the AWS global network to route traffic to the ALB, preserving the ALB's native HTTP/HTTPS features.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Place an AWS Global Accelerator in front of the ALB.
Why this is correct
Global Accelerator provides static IPs for ALB.
- ✗
Use Amazon CloudFront with the ALB as origin.
Why it's wrong here
CloudFront provides static IPs but is for content delivery.
- ✗
Assign an Elastic IP to the ALB.
Why it's wrong here
ALB does not support Elastic IP.
- ✗
Replace the ALB with a Network Load Balancer (NLB).
Why it's wrong here
NLB is Layer 4, but the application may need Layer 7 features.
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Last reviewed: Jun 24, 2026
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