Why does DynamoDB Global Tables use asynchronous replication instead of synchronous replication across regions?

hard🧠 Conceptual Q10 of 15

DynamoDB - Backup and Recovery

ATo reduce write latency and avoid blocking writes across distant regions

BBecause synchronous replication is not technically possible

CTo ensure strong consistency across all regions

DTo prevent any data conflicts automatically

Step-by-Step Solution

Solution:

Step 1: Understand replication trade-offs
Synchronous replication would increase write latency due to network delays between regions.
Step 2: Analyze DynamoDB design choice
Asynchronous replication reduces latency and allows writes to complete quickly without waiting for other regions.
Final Answer:
To reduce write latency and avoid blocking writes across distant regions -> Option A
Quick Check:
Async replication reduces latency [OK]

Quick Trick: Async replication reduces latency, enabling fast writes [OK]

Common Mistakes:

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