- A
Configure the web server on the EC2 instances to only respond to HTTPS requests.
Why wrong: This does not prevent HTTP traffic from reaching the ALB; the ALB may still accept HTTP traffic.
- B
Create an HTTPS listener on the ALB and configure a redirect rule from HTTP to HTTPS.
This enforces HTTPS by redirecting all HTTP requests to HTTPS at the ALB level.
- C
Configure the security group of the ALB to only allow inbound HTTPS traffic.
Why wrong: Security groups control traffic to the ALB but do not enforce HTTPS redirection; HTTP traffic could still reach the ALB.
- D
Use AWS CloudFront with a custom SSL certificate and set the viewer protocol policy to Redirect HTTP to HTTPS.
Why wrong: CloudFront can enforce HTTPS but is not necessary if the ALB can handle it directly; adds unnecessary complexity.
DOP-C02 Security and Compliance Practice Question
This DOP-C02 practice question tests your understanding of security and compliance. 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 deploying a web application on AWS and needs to ensure that all traffic to the application is encrypted in transit. The application runs behind an Application Load Balancer (ALB). Which configuration should be used to enforce HTTPS-only access?
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
Create an HTTPS listener on the ALB and configure a redirect rule from HTTP to HTTPS.
Option B is correct because the ALB can be configured with an HTTPS listener that redirects HTTP traffic to HTTPS, ensuring encrypted transit. Option A is wrong because security groups only control traffic at the instance level, not the ALB listener. Option C is wrong because CloudFront can enforce HTTPS but adds complexity and cost. Option D is wrong because modifying the application code is not a scalable or secure approach compared to ALB-level enforcement.
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 web server on the EC2 instances to only respond to HTTPS requests.
Why it's wrong here
This does not prevent HTTP traffic from reaching the ALB; the ALB may still accept HTTP traffic.
- ✓
Create an HTTPS listener on the ALB and configure a redirect rule from HTTP to HTTPS.
Why this is correct
This enforces HTTPS by redirecting all HTTP requests to HTTPS at the ALB level.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure the security group of the ALB to only allow inbound HTTPS traffic.
Why it's wrong here
Security groups control traffic to the ALB but do not enforce HTTPS redirection; HTTP traffic could still reach the ALB.
- ✗
Use AWS CloudFront with a custom SSL certificate and set the viewer protocol policy to Redirect HTTP to HTTPS.
Why it's wrong here
CloudFront can enforce HTTPS but is not necessary if the ALB can handle it directly; adds unnecessary complexity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
Security and Compliance — study guide chapter
Learn the concepts, then practise the questions
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Security and Compliance practice questions
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an HTTPS listener on the ALB and configure a redirect rule from HTTP to HTTPS. — Option B is correct because the ALB can be configured with an HTTPS listener that redirects HTTP traffic to HTTPS, ensuring encrypted transit. Option A is wrong because security groups only control traffic at the instance level, not the ALB listener. Option C is wrong because CloudFront can enforce HTTPS but adds complexity and cost. Option D is wrong because modifying the application code is not a scalable or secure approach compared to ALB-level enforcement.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 20, 2026
This DOP-C02 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 DOP-C02 exam.
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