DVA-C02 Domain 2: Security

Which service should you use to authorize API callers with signed requests?

Multiple choice — select one answer

Answer choices

  1. a. IAM instance profiles
  2. b. S3 Block Public Access
  3. c. AWS KMS with Lambda
  4. d. AWS Signature Version 4 (SigV4)

Architectural breakdown & explanation

SigV4 signs AWS API requests.

Correct answer(s): d. AWS Signature Version 4 (SigV4)

Exam domain: Domain 2: Security (26% weight on the official guide).

Official documentation & study links

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