Basic Information
| Field | Details |
|---|---|
| English name | Amazon SQS |
| Full name | Amazon Simple Queue Service |
| Chinese description | 消息队列服务 |
| Japanese description | マネージドメッセージキューサービス |
| Exam frequency | ⭐⭐⭐⭐⭐ |
| Often confused with | SNS / EventBridge / Kinesis |
In one sentence
A managed message queue that decouples producers and consumers and buffers work for reliable asynchronous processing.
Key points
- Standard queues provide very high throughput with at-least-once delivery and possible duplicates or reordering.
- FIFO queues preserve order within message groups and support deduplication with lower throughput limits.
- Visibility Timeout hides a received message while it is processed; successful consumers delete it.
Exam takeaway
Use DLQs, retries, idempotent consumers, and suitable retention and visibility settings.