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Free AWS Certified Developer Associate DVA-C02 Practice Question

Your company's application utilizes Amazon DynamoDB for data storage. To improve read performance and reduce latency for frequently accessed items, you have been tasked with implementing a caching layer. You decide to use Amazon ElastiCache. Which strategy should you employ to ensure cache consistency while minimizing performance impact?

  • Adopt a read-through caching strategy where data is loaded into the cache on a cache miss, optimizing read operations.

  • Incorporate lazy loading, so the cache is only updated when data is requested, minimizing the number of write operations.

  • Implement a write-through caching strategy where each write to DynamoDB is simultaneously written to the ElastiCache layer.

  • Use a write-around caching strategy to write data directly to DynamoDB and bypass the cache, reducing cache overhead.

This question's topic:
AWS Certified Developer Associate DVA-C02 / 
Development with AWS Services
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Development with AWS Services
Security
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