ANS-C01 Network Implementation Practice Question
A company is deploying a public-facing web application on EC2 instances behind an Application Load Balancer. The ALB is configured to terminate HTTPS using a certificate from AWS Certificate Manager. What additional step is required to ensure the ALB can validate the certificate?
⚠ Common exam trap
The ANS-C01 exam often tests the misconception that ACM certificates are globally available or can be used across regions, when in fact they are region-specific and must match the ALB's region.
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
✓
Ensure the certificate is in the same AWS region as the ALB.
For an Application Load Balancer to terminate HTTPS using a certificate from AWS Certificate Manager (ACM), the certificate must be in the same AWS region as the ALB. ACM certificates are region-specific resources; the ALB can only reference certificates that are stored in the same region where the ALB is deployed. This is a fundamental constraint of ACM integration with regional services like ALB.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Attach the certificate to an Amazon CloudFront distribution.
Why it's wrong here
CloudFront is not involved.
- ✓
Ensure the certificate is in the same AWS region as the ALB.
Why this is correct
ACM certificates are region-specific.
- ✗
Create a DNS record to validate domain ownership.
Why it's wrong here
ACM can validate via email or DNS, but ALB does not require it.
- ✗
Import the certificate into AWS Certificate Manager Private Certificate Authority.
Why it's wrong here
Not needed for public certificate.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ANS-C01 exam.