- A
Configure the Application Load Balancer with an HTTP listener that redirects to HTTPS.
Why wrong: Redirect is acceptable but the question asks for encryption; HTTP listener itself is not encrypted.
- B
Use a Network Load Balancer with TCP listener.
Why wrong: NLB with TCP does not provide encryption; SSL termination is handled at the instance level.
- C
Place an Amazon CloudFront distribution in front of the ALB.
Why wrong: CloudFront adds encryption at the edge but does not ensure encryption between ALB and EC2.
- D
Install an SSL/TLS certificate on the Application Load Balancer.
SSL/TLS certificate is required for HTTPS termination.
- E
Configure the Application Load Balancer with an HTTPS listener.
HTTPS listener ensures traffic to the ALB is encrypted.
Question 474 of 1,746
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 will run on Amazon EC2 instances behind an Application Load Balancer. The company wants to ensure that traffic to the application is encrypted in transit. Which TWO actions should the company 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
✓
Install an SSL/TLS certificate on the Application Load Balancer.
Option D is correct because installing an SSL/TLS certificate on the Application Load Balancer (ALB) is required to terminate HTTPS connections and enable encryption of traffic between clients and the ALB. Option E is correct because configuring the ALB with an HTTPS listener is necessary to accept encrypted traffic on port 443 and use the installed certificate for decryption. Together, these actions ensure that traffic to the application is encrypted in transit from the client to the load balancer.
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 Application Load Balancer with an HTTP listener that redirects to HTTPS.
Why it's wrong here
Redirect is acceptable but the question asks for encryption; HTTP listener itself is not encrypted.
- ✗
Use a Network Load Balancer with TCP listener.
- ✗
Place an Amazon CloudFront distribution in front of the ALB.
Why it's wrong here
CloudFront adds encryption at the edge but does not ensure encryption between ALB and EC2.
- ✓
Install an SSL/TLS certificate on the Application Load Balancer.
- ✓
Configure the Application Load Balancer with an HTTPS listener.
Why this is correct
HTTPS listener ensures traffic to the ALB is encrypted.
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 may think an HTTP-to-HTTPS redirect alone (Option A) is sufficient to encrypt traffic, but the redirect only changes the protocol; the actual encryption requires an HTTPS listener with a certificate installed.
Detailed technical explanation
How to think about this question
An Application Load Balancer supports HTTPS listeners that terminate TLS connections using certificates stored in AWS Certificate Manager (ACM) or uploaded as IAM server certificates. The ALB decrypts requests from clients, inspects HTTP headers for routing, and then re-encrypts traffic to targets if backend encryption is configured. In a real-world scenario, you might also configure security policies to enforce specific TLS versions (e.g., TLS 1.2 or 1.3) and cipher suites to meet compliance requirements like PCI DSS.
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: Install an SSL/TLS certificate on the Application Load Balancer. — Option D is correct because installing an SSL/TLS certificate on the Application Load Balancer (ALB) is required to terminate HTTPS connections and enable encryption of traffic between clients and the ALB. Option E is correct because configuring the ALB with an HTTPS listener is necessary to accept encrypted traffic on port 443 and use the installed certificate for decryption. Together, these actions ensure that traffic to the application is encrypted in transit from the client to the load balancer.
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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