A Front-End Web Application Is Using Amazon Cognito User Pools

question 31

Multiple Choice

A front-end web application is using Amazon Cognito user pools to handle the user authentication flow. A developer is integrating Amazon DynamoDB into the application using the AWS SDK for JavaScript. How would the developer securely call the API without exposing the access or secret keys?

• A) Configure Amazon Cognito identity pools and exchange the JSON Web Token (JWT) for temporary credentials.
• B) Run the web application in an Amazon EC2 instance with the instance profile configured.
• C) Hardcore the credentials, use Amazon S3 to host the web application, and enable server-side encryption.
• D) Use Amazon Cognito user pool JSON Web Tokens (JWITs) to access the DynamoDB APIs.

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Definitions:

Target Point

The desired outcome or goal that negotiators aim to achieve in a negotiation process.

Bargaining Zone

The range within which an agreement is satisfactory to both parties involved in a negotiation process.

Resistance Point

In negotiation, the limit beyond which a person or party refuses to go or the minimum outcome they are willing to accept.

Arbitration

A method of dispute resolution where a neutral third party, the arbitrator, makes a binding decision to resolve a conflict.