Basic Information
| Field | Details |
|---|---|
| English name | AWS Lambda |
| Full name | AWS Lambda |
| Chinese description | 无服务器函数计算 |
| Japanese description | AWS Lambda（ラムダ） |
| Exam frequency | ⭐⭐⭐⭐⭐ |
| Often confused with | EC2 / Fargate / AWS Batch |
In one sentence
Runs function code in response to events without managing servers, with automatic scaling and usage-based billing.
Key points
- Lambda is a FaaS and serverless compute service for short-lived, event-driven work.
- Common triggers include S3, SQS, EventBridge, API Gateway, and DynamoDB Streams.
- A single invocation can run for up to 15 minutes; long-running jobs usually fit Batch, ECS/Fargate, or EC2 better.
Exam takeaway
For SQS integrations, remember execution roles, batch processing, idempotency, visibility timeout, retries, and DLQs.