Practice Test 4 | AWS Certified Cloud Practitioner | CLF-C01 | Dumps | Mock Test

Correct Answer: B

Using Amazon Cognito user pool & identity pool, mobile app users can be authenticated to use AWS services like Amazon S3 bucket.

• Options A & C are incorrect as IAM users & IAM group can create authentication & manage access for users accessing AWS services. These services are not suitable to provide authentication to millions of users accessing AWS services via mobile app.
• Option D is incorrect as AWS STS is a service that grants temporary access privilege for AWS IAM users or federated users.

For more information on Amazon Cognito, refer to the following URL:

• https://aws.amazon.com/cognito/faqs/