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DBS-C01 · Question #215

A database specialist is designing an enterprise application for a large company. The application uses Amazon DynamoDB with DynamoDB Accelerator (DAX). The database specialist observes that most of…

The correct answer is C. The DAX cluster's TTL setting. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.cluster- management.html#DAX.cluster-management.custom-settings.ttl

Submitted by chen.hong· Mar 6, 2026Monitoring and Troubleshooting

Question

A database specialist is designing an enterprise application for a large company. The application uses Amazon DynamoDB with DynamoDB Accelerator (DAX). The database specialist observes that most of the queries are not found in the DAX cache and that they still require DynamoDB table reads. What should the database specialist review first to improve the utility of DAX?

Options

  • AThe DynamoDB ConsumedReadCapacityUnits metric
  • BThe trust relationship to perform the DynamoDB API calls
  • CThe DAX cluster's TTL setting
  • DThe validity of customer-specified AWS Key Management Service (AWS KMS) keys for DAX

How the community answered

(58 responses)
  • A
    2% (1)
  • B
    5% (3)
  • C
    81% (47)
  • D
    12% (7)

Explanation

https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.cluster- management.html#DAX.cluster-management.custom-settings.ttl

Topics

#DynamoDB Accelerator (DAX)#Caching#Cache hits/misses#Performance optimization

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