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DVA-C02 · Question #683

A developer is investigating an issue for a company. Some requests are passing through an Amazon API Gateway endpoint, but they do not reach the AWS Lambda function that backs the endpoint. The…

The correct answer is C. Request to increase the Lambda concurrency quota through the Service Quotas dashboard. If a Lambda function is hitting the account-level maximum concurrency limit, increasing the Lambda concurrency quota via the Service Quotas dashboard allows more concurrent executions, preventing throttling and ensuring requests reach the function.

Submitted by miguelv· Mar 5, 2026Troubleshooting and Optimization

Question

A developer is investigating an issue for a company. Some requests are passing through an Amazon API Gateway endpoint, but they do not reach the AWS Lambda function that backs the endpoint. The developer finds that a second Lambda function sometimes runs at the maximum concurrency that is allowed for the AWS account. How can the developer address this issue?

Options

  • AManually reduce the concurrency quota at the account level.
  • BAdd another API Gateway stage for the endpoint. Shard the requests.
  • CRequest to increase the Lambda concurrency quota through the Service Quotas dashboard.
  • DReduce the throttling quota in the API Gateway endpoint.

How the community answered

(52 responses)
  • A
    6% (3)
  • B
    8% (4)
  • C
    85% (44)
  • D
    2% (1)

Explanation

If a Lambda function is hitting the account-level maximum concurrency limit, increasing the Lambda concurrency quota via the Service Quotas dashboard allows more concurrent executions, preventing throttling and ensuring requests reach the function.

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