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SAA-C03 · Question #816

SAA-C03 Question #816: Real Exam Question with Answer & Explanation

The correct answer is C: Use AWS Glue compaction optimization to combine multiple small files into larger files. Use. AWS Glue’s compaction feature efficiently merges many small files into larger files, improving query performance in Amazon Athena by reducing the overhead of reading numerous small objects, which is the main cause of slow queries.

Submitted by weili_xi· Mar 4, 2026Design High-Performing Architectures

Question

A company runs an order management application on AWS. The application generates many JSON log files every minute that are each under 40 KB in size. The application stores the log files in an Amazon S3 bucket. The company's analytics team queries the logs to generate reports. The analytics team reports long query times. A solutions architect needs to optimize the performance of the logging solution to improve query times. Which solution will meet this requirement?

Options

  • AConfigure AWS Step Functions to combine existing files into larger files. Use AWS Glue to query
  • BMigrate the data from Amazon S3 to an Amazon Elastic File System (Amazon EFS) file system.
  • CUse AWS Glue compaction optimization to combine multiple small files into larger files. Use
  • DCreate an Amazon EventBridge scheduled rule to invoke an AWS Lambda function to read and

Explanation

AWS Glue’s compaction feature efficiently merges many small files into larger files, improving query performance in Amazon Athena by reducing the overhead of reading numerous small objects, which is the main cause of slow queries.

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