Users in each Region should read and write a nearby DynamoDB replica.
Continue service in another Region if one Region fails.
Which architecture is most appropriate?
Configure DynamoDB Global Tables to replicate writable table replicas across Regions.
Detailed explanation
DNS caching does not replicate database data.
DNS caching does not replicate database data.
Global Tables provide replicated table replicas that applications can use in multiple Regions.
Global Tables provide replicated table replicas that applications can use in multiple Regions.
A single Region retains latency and Region-failure risk.
A single Region retains latency and Region-failure risk.
S3 replication copies objects and does not create writable DynamoDB table replicas.
S3 replication copies objects and does not create writable DynamoDB table replicas.
Check official documentation
Compare the following points with the official documentation.
DynamoDB Global Tablesの公式説明を確認する。
What to confirm
データ複製とDNSルーティングの違いを説明できる。
Key points
- DynamoDB Global Tables
- Multi-Region replica
- Continuous availability
Notes
- Environment: AWS公式SOA-C03試験ガイドとAWS公式ドキュメントの確認
- Confirm current AWS service behavior in the official documentation.
Foundation review
Data plane replication
Database replication moves data; DNS routing alone only chooses where clients connect.
Regional locality
Local replicas can reduce latency while preserving a path to another Region.