Quick Answer
The correct answer is the JWT authorizer configured for the issuer and audience. This is the most appropriate choice because an API Gateway HTTP API with an external OIDC provider relies on the JWT authorizer to validate the token’s signature, issuer, and audience against the OIDC provider’s well-known configuration, ensuring only authenticated users gain access. On the AWS Certified Developer Associate DVA-C02 exam, this concept tests your understanding of native AWS integration with third-party identity providers like Auth0 or Okta, and a common trap is confusing the JWT authorizer with a Lambda authorizer—remember that the JWT authorizer handles OIDC validation natively without custom code. For a quick memory tip: think “JWT for OIDC, Lambda for custom logic.”
This DVA-C02 practice question tests your understanding of security. 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.
An API Gateway HTTP API should allow access only to users authenticated by an external OIDC provider. Which authorizer type is most appropriate?
IAM authorizer
Why wrong: This does not meet the stated requirement as directly as the correct option.
API key authorizer
Why wrong: This does not meet the stated requirement as directly as the correct option.
JWT authorizer configured for the issuer and audience
Correct for the stated requirement.
S3 bucket policy
Why wrong: This does not meet the stated requirement as directly as the correct option.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
JWT authorizer configured for the issuer and audience
Option C is correct because an HTTP API Gateway with an external OIDC provider requires a JWT authorizer. The JWT authorizer validates the token's signature, issuer, and audience against the OIDC provider's configuration, ensuring only authenticated users gain access. This is the native AWS mechanism for integrating third-party OIDC identity providers like Auth0 or Okta.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
IAM authorizer
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
API key authorizer
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
JWT authorizer configured for the issuer and audience
Why this is correct
Correct for the stated requirement.
Related concept
Read the scenario before looking for a memorised answer.
S3 bucket policy
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
Common exam traps
The trap here is that candidates confuse the JWT authorizer with the Lambda authorizer, thinking a custom Lambda is always required for OIDC, but the JWT authorizer natively supports OIDC without custom code when the provider issues standard JWTs.
Detailed technical explanation
The JWT authorizer in API Gateway HTTP APIs validates the token by checking its signature against the OIDC provider's JWKS (JSON Web Key Set) endpoint, and verifies the 'iss' (issuer) and 'aud' (audience) claims match the configured values. Under the hood, API Gateway caches the JWKS for up to 300 seconds to reduce latency, but this can cause a brief window where a rotated signing key is not yet recognized. In production, you must ensure the OIDC provider's JWKS endpoint is highly available and that token expiration (exp claim) is properly enforced.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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FAQ
Security — This question tests Security — Read the scenario before looking for a memorised answer..
The correct answer is: JWT authorizer configured for the issuer and audience — Option C is correct because an HTTP API Gateway with an external OIDC provider requires a JWT authorizer. The JWT authorizer validates the token's signature, issuer, and audience against the OIDC provider's configuration, ensuring only authenticated users gain access. This is the native AWS mechanism for integrating third-party OIDC identity providers like Auth0 or Okta.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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.
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