A company has deployed an application in a single AWS Region. The application backend uses Amazon DynamoDB tables and Amazon S3 buckets. The company wants to deploy the application in a secondary Regi

Question

Options

• AImplement two-way S3 bucket replication between the primary Region's S3 buckets and the
• BImplement S3 Batch Operations copy jobs between the primary Region and the secondary
• CImplement two-way S3 bucket replication between the primary Region's S3 buckets and the
• DImplement S3 Batch Operations copy jobs between the primary Region and the secondary

• A
  75% (27)
• B
  14% (5)
• C
  8% (3)
• D
  3% (1)

Explanation

Explanation

Option A is correct because it combines two-way S3 Cross-Region Replication (CRR) with DynamoDB Global Tables, which together provide automatic, real-time, bidirectional data synchronization across Regions with minimal operational overhead - perfectly meeting the requirements for immediate propagation and persistence in both Regions.

Why the distractors are wrong: Options B and D rely on S3 Batch Operations, which is a batch/scheduled copying mechanism - not a real-time replication solution - meaning data does not immediately propagate, violating a key requirement. Options C and D (based on the truncated choices) likely pair Batch Operations with a less efficient DynamoDB strategy (such as manual exports/imports) rather than Global Tables, adding unnecessary operational complexity.

Memory Tip: Think "Global = Instant" - DynamoDB Global Tables and S3 Cross-Region Replication are AWS's automated, real-time multi-Region tools. Any time an exam question demands immediate cross-Region data sync with low operational effort, these two services should be your first instinct. Batch Operations = scheduled bulk work, not live replication.

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