Which AWS service issues temporary, expiring security tokens to assume roles (cross-account, federated, or via web identity)?
- Amazon RDS
- AWS Snowball
- AWS Security Token Service (STS)
- Amazon Route 53
Show answer and solution
Correct answer: C. AWS Security Token Service (STS)
STS is AWS's short-lived-credential issuer (per DOP-C02 §6.1).
The others aren't credential services.