A Company Has a Web Application That Uses Amazon API

question 577

Multiple Choice

A company has a web application that uses Amazon API Gateway, AWS Lambda, and Amazon DynamoDB. A recent marketing campaign has increased demand. Monitoring software reports that many requests have significantly longer response times than before the marketing campaign. A solutions architect enabled Amazon CloudWatch Logs for API Gateway and noticed that errors are occurring on 20% of the requests. In CloudWatch, the Lambda function Throttles metric represents 1% of the requests and the Errors metric represents 10% of the requests. Application logs indicate that, when errors occur, there is a call to DynamoDB. What change should the solutions architect make to improve the current response times as the web application becomes more popular?

• A) Increase the concurrency limit of the Lambda function
• B) Implement DynamoDB auto scaling on the table
• C) Increase the API Gateway throttle limit
• D) Re-create the DynamoDB table with a better-partitioned primary index

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Definitions:

Accrual Basis Accounting

An accounting method where income and expenses are recorded when they are earned or incurred, regardless of when the cash is actually received or paid.

Cash Flow

The total amount of money being transferred into and out of a business, affecting the organization's liquidity.

Fund-Raising Results

The outcomes or achievements of efforts to collect financial resources or donations, often critical for the operation and projects of nonprofit organizations.

Program Results

The outcomes or impacts of a project or program, often used as a measure of its effectiveness.