Basic Information
| Field | Details |
|---|---|
| English name | AWS Database Migration Service (AWS DMS) |
| Full name | AWS Database Migration Service |
| Chinese description | 数据库迁移服务 |
| Japanese description | データベース移行サービス |
| Exam frequency | ⭐⭐⭐⭐ |
| Often confused with | AWS SCT / EC2 Lift and Shift |
In one sentence
Migrates or continuously replicates databases with low downtime while source systems remain available.
Key points
- DMS performs full load, change data capture, or both between supported sources and targets.
- It handles data movement; heterogeneous migrations may also need AWS SCT to convert schema and code.
- A replication instance or serverless replication resources perform the transfer.
Exam takeaway
Test data types, LOB handling, network access, performance, validation, and cutover before production migration.