DEA-C01 · Question #217
DEA-C01 Question #217: Real Exam Question with Answer & Explanation
The correct answer is C: Configure reserved concurrency for the Lambda function.. Reserved concurrency ensures that a specific Lambda function has a set number of concurrent executions that cannot be throttled due to other Lambda functions consuming shared concurrency limits. By configuring reserved concurrency, the API's Lambda function will always have the n
Question
A company has an application that uses an Amazon API Gateway REST API and an AWS Lambda function to retrieve data from an Amazon DynamoDB instance. Users recently reported intermittent high latency in the application's response times. A data engineer finds that the Lambda function experiences frequent throttling when the company's other Lambda functions experience increased invocations. The company wants to ensure the API's Lambda function operate without being affected by other Lambda functions. Which solution will meet this requirement MOST cost-effectively?
Options
- AIncrease the number of read capacity unit (RCU) in DynamoDB.
- BConfigure provisioned concurrency for the Lambda function.
- CConfigure reserved concurrency for the Lambda function.
- DIncrease the Lambda function timeout and allocated memory.
Explanation
Reserved concurrency ensures that a specific Lambda function has a set number of concurrent executions that cannot be throttled due to other Lambda functions consuming shared concurrency limits. By configuring reserved concurrency, the API's Lambda function will always have the necessary resources to execute without being affected by other functions, thereby preventing throttling and ensuring consistent performance.
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