A Developer Has Built an Application Using Amazon Cognito for Authentication

question 74

Multiple Choice

A developer has built an application using Amazon Cognito for authentication and authorization. After a user is successfully logged in to the application, the application creates a user record in an Amazon DynamoDB table. What is the correct flow to authenticate the user and create a record in the DynamoDB table?

• A) Authenticate and get a token from an Amazon Cognito user pool. Use the token to access DynamoDB.
• B) Authenticate and get a token from an Amazon Cognito identity pool. Use the token to access DynamoDB.
• C) Authenticate and get a token from an Amazon Cognito user pool. Exchange the token for AWS credentials with an Amazon Cognito identity pool. Use the credentials to access DynamoDB.
• D) Authenticate and get a token from an Amazon Cognito identity pool. Exchange the token for AWS credentials with an Amazon Cognito user pool. Use the credentials to access DynamoDB.

---

Definitions:

EPS

Earnings per share, a financial metric indicating the profitability of a company on a per-share basis.

Required Return

The minimum return a investor expects or needs from an investment, considering the risk involved.

Plowback Ratio

The Plowback Ratio, also known as the retention ratio, measures the proportion of earnings that are retained by the company rather than paid out as dividends.

P/E Ratio

Price-to-Earnings Ratio, a valuation metric comparing the current share price of a company to its per-share earnings.