Lambda

Definition

AWS Lambda is a serverless compute service that runs your code in response to events without requiring you to provision or manage servers.

Use Cases

• Coca-Cola: Vending Machine Integration — Uses Lambda to process IoT data from vending machines worldwide (Reduced infrastructure costs by 80% compared to EC2)

Provider Equivalents

• AWS: Lambda
• Azure: Azure Functions
• GCP: Cloud Functions
• OCI: Functions

Frequently Asked Questions

When should I use Lambda vs EC2?

Use Lambda for event-driven, short-running tasks (under 15 minutes). Use EC2 for long-running processes or when you need full server control.

What is cold start in Lambda?

Cold start is the delay when Lambda spins up a new execution environment. It can add 100ms to several seconds depending on runtime and memory.

Category: cloud

Difficulty: intermediate

Related Terms

• Serverless Computing
• FaaS
• API Gateway
• S3
• SQS
• Cloud Functions

See Also

• Cloud Computing
• Cloud Provider
• Virtual Machine
• AWS
• EC2