ANS-C01 Network Security, Compliance and Governance Practice Question
A company needs to encrypt data in transit between an Application Load Balancer and EC2 instances. Which TWO actions should they take?
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
✓
Upload a certificate to AWS Certificate Manager (ACM).
To encrypt traffic between the ALB and EC2 instances, you need to upload a certificate to AWS Certificate Manager (ACM) for the backend HTTPS listener (Option C) and configure the ALB target group to use HTTPS protocol (Option D). Option A (TCP listener) does not support encryption. Option B (CloudFront) is a CDN and not required for backend encryption. Option E (self-signed certificate) is not recommended for production environments.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a TCP listener on the ALB.
Why it's wrong here
TCP listeners do not support encryption; HTTPS listeners are needed.
- ✗
Place Amazon CloudFront in front of the ALB.
Why it's wrong here
CloudFront is a CDN and does not directly encrypt the ALB-to-instance traffic.
- ✓
Upload a certificate to AWS Certificate Manager (ACM).
Why this is correct
ACM provides SSL/TLS certificates that can be used by the ALB for HTTPS.
- ✓
Configure the ALB target group to use HTTPS protocol.
Why this is correct
The target group protocol must be HTTPS to encrypt traffic between ALB and instances.
- ✗
Use a self-signed certificate on the EC2 instances.
Why it's wrong here
Self-signed certificates are not trusted by default and are not a best practice.
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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.