DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. 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 runs a critical web application on Amazon EC2 instances behind an Application Load Balancer. The application needs to authenticate users via an external OpenID Connect (OIDC) identity provider. The company wants to offload authentication to the load balancer and use IAM roles to access AWS resources. Which solution should the developer implement?
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 to use the OIDC identity provider for user authentication. Use the identity token to assume an IAM role via web identity federation.
Option B is correct because ALB can authenticate users via OIDC and pass the user's identity to the application via HTTP headers. The application can then use the token to assume an IAM role using web identity federation. Option A is wrong because Cognito is not required; ALB supports OIDC directly. Option C is wrong because Lambda@Edge is for CloudFront, not ALB. Option D is wrong because ALB does not support OIDC directly with just a target group; authentication is configured on the listener rule.
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 ALB target group to authenticate using the OIDC identity provider.
Why it's wrong here
Authentication is configured on the listener rule, not the target group.
✗
Use AWS Lambda@Edge to authenticate users at the edge.
Why it's wrong here
Lambda@Edge is used with CloudFront, not ALB.
✓
Configure the ALB to use the OIDC identity provider for user authentication. Use the identity token to assume an IAM role via web identity federation.
Why this is correct
ALB supports OIDC authentication and the application can use the token to assume an IAM role.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Amazon Cognito user pools as the OIDC provider and integrate with ALB.
Why it's wrong here
Cognito can be used but is not necessary; ALB natively supports OIDC.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which DVA-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.
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure the ALB to use the OIDC identity provider for user authentication. Use the identity token to assume an IAM role via web identity federation. — Option B is correct because ALB can authenticate users via OIDC and pass the user's identity to the application via HTTP headers. The application can then use the token to assume an IAM role using web identity federation. Option A is wrong because Cognito is not required; ALB supports OIDC directly. Option C is wrong because Lambda@Edge is for CloudFront, not ALB. Option D is wrong because ALB does not support OIDC directly with just a target group; authentication is configured on the listener rule.
What should I do if I get this DVA-C02 question wrong?
Identify which DVA-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.
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This DVA-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 DVA-C02 exam.
Question Discussion
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