DVA-C02 · Question #250
DVA-C02 Question #250: Real Exam Question with Answer & Explanation
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Question
A company has a three-tier application that is deployed in Amazon Elastic Container Service (Amazon ECS). The application is using an Amazon RDS for MySQL DB instance. The application performs more database reads than writes. During times of peak usage, the application's performance degrades. When this performance degradation occurs, the DB instance's ReadLatency metric in Amazon CloudWatch increases suddenly. How should a developer modify the application to improve performance?
Options
- AUse Amazon ElastiCache to cache query results.
- BScale the ECS cluster to contain more ECS instances.
- CAdd read capacity units (RCUs) to the DB instance.
- DModify the ECS task definition to increase the task memory.
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