Serverless
AWS Lambda
A serverless compute service that runs code in response to events or requests without the customer provisioning or managing servers.
Key points
- Lambda scales execution in response to demand within configured limits.
- Customers manage their code, permissions, data, and configuration; AWS manages the underlying runtime infrastructure.
- Lambda is suited to discrete functions, not every long-running or server-control workload.
Best-known use cases
- Process events without managing servers.
- Run short-lived API or automation logic.
What candidates often confuse it with
- Lambda runs functions; Fargate runs containers without managing servers.
- EC2 provides operating-system and virtual-server control.
Key Cloud Practitioner takeaway
Event-driven code with no server management points to Lambda.
Related services
- Amazon EC2
- AWS Fargate
Relevant exam tasks
- D2.1
- D3.3