AWS Certified Developer Associate DVA-C02 Practice Question
A developer is building a microservices-based e-commerce application hosted on AWS. The checkout and catalog services read frequently accessed product data from an Amazon Aurora MySQL database. During seasonal traffic spikes, database read latency increases, slowing page loads. The developer wants to add a fully managed, in-memory cache that is compatible with open-source Redis and Memcached so that the team can integrate quickly without significant code changes. Which AWS service should the developer choose?
Amazon ElastiCache offers a fully managed, in-memory caching service that supports both Redis and Memcached engines. Choosing ElastiCache allows the developer to deploy a cache cluster or serverless cache in minutes, offloading undifferentiated tasks such as patching and scaling while preserving API compatibility with existing open-source clients. Amazon MemoryDB for Redis is Redis-only, DynamoDB Accelerator works only with DynamoDB tables, and AWS AppConfig does not provide caching. Therefore, ElastiCache is the only option that meets all stated requirements.
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AWS Certified Developer Associate DVA-C02
Development with AWS Services
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