- A
Configure the target group to use HTTP protocol.
Why wrong: Target group protocol does not affect client-to-ALB encryption.
- B
Configure the security group to only allow inbound traffic from approved IPs.
Why wrong: Security groups do not encrypt traffic.
- C
Use HTTP on port 80 and rely on VPC network ACLs.
Why wrong: HTTP is unencrypted.
- D
Configure the ALB listener to use HTTPS (port 443) with an SSL certificate.
HTTPS encrypts traffic between client and ALB.
Question 952 of 1,746
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is designing a new application that processes sensitive healthcare data. The application runs on Amazon ECS with Fargate and uses an Application Load Balancer. The company must ensure that all data in transit is encrypted. Which step should be taken?
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
✓
Configure the ALB listener to use HTTPS (port 443) with an SSL certificate.
Option D is correct because to encrypt data in transit between clients and the Application Load Balancer (ALB), you must configure the ALB listener to use HTTPS (port 443) with an SSL/TLS certificate. This ensures that all traffic between the client and the load balancer is encrypted using TLS, meeting the requirement for encrypted data in transit for sensitive healthcare data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure the target group to use HTTP protocol.
Why it's wrong here
Target group protocol does not affect client-to-ALB encryption.
- ✗
Configure the security group to only allow inbound traffic from approved IPs.
Why it's wrong here
Security groups do not encrypt traffic.
- ✗
Use HTTP on port 80 and rely on VPC network ACLs.
Why it's wrong here
HTTP is unencrypted.
- ✓
Configure the ALB listener to use HTTPS (port 443) with an SSL certificate.
Why this is correct
HTTPS encrypts traffic between client and ALB.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse network-level controls (security groups, NACLs) with encryption, or assume that using HTTP on the backend is sufficient, forgetting that the client-to-ALB leg must also be encrypted to satisfy 'data in transit' requirements.
Detailed technical explanation
How to think about this question
HTTPS listeners on an ALB terminate TLS at the load balancer, decrypting the client request and then re-encrypting it to the target (if the target group uses HTTPS) or sending it in plaintext (if HTTP). For end-to-end encryption, you must also configure the target group to use HTTPS with a certificate on the ECS tasks. The ALB supports TLS 1.2 and 1.3, and you can upload certificates from AWS Certificate Manager (ACM) or import your own.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Design for New Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure the ALB listener to use HTTPS (port 443) with an SSL certificate. — Option D is correct because to encrypt data in transit between clients and the Application Load Balancer (ALB), you must configure the ALB listener to use HTTPS (port 443) with an SSL/TLS certificate. This ensures that all traffic between the client and the load balancer is encrypted using TLS, meeting the requirement for encrypted data in transit for sensitive healthcare data.
What should I do if I get this SAP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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