DEA-C01 Data Operations and Support Practice Question

Correct answer & explanation

(Enable DynamoDB Global Tables) is correct because Global Tables provide local read replicas in multiple AWS Regions, reducing read latency for users accessing from different geographic locations. Option C (Enable DynamoDB Accelerator (DAX)) is correct because DAX is an in-memory cache that significantly reduces read latency for frequently accessed items. Option A is incorrect because adding a Global Secondary Index (GSI) improves query flexibility but does not directly reduce read latency for primary key lookups. Option D is incorrect because DynamoDB Streams capture changes to the table for event-driven processing, not for reducing read latency. Option E is incorrect because increasing write capacity units only affects write throughput, not read performance.