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DOP-C02 · Question #477

DOP-C02 Question #477: Real Exam Question with Answer & Explanation

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Submitted by deeparc· Mar 6, 2026Resilient Cloud Solutions

Question

A company has a public application that uses an Amazon API Gateway REST API, an AWS Lambda function, and an Amazon RDS for PostgreSQL DB cluster. Users have recently received error messages as application demand increased. The company's DevOps engineer discovered that the errors were caused by RDS connection limits being reached. The DevOps engineer also discovered that more than 90% of the API requests are GET requests that read from the DB cluster. How should the DevOps engineer solve this problem with the LEAST development effort?

Options

  • AMigrate from Amazon RDS to Amazon DynamoDB. Add an Amazon CloudFront distribution in
  • BAdd a proxy from Amazon RDS Proxy in front of the RDS DB cluster. Enable API caching in API
  • CAdd an Amazon RDS Proxy in front of the RDS database cluster. Provision an Amazon
  • DMigrate from Amazon RDS to Amazon DynamoDB. Enable API caching in API Gateway.

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Topics

#API Gateway caching#database scaling#RDS connection limits#serverless optimization
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