[Solved] What happens when an AWS Lambda function is not triggered by any event? — Ans: The function does not run and no charges occur. | AWS

AWS - Lambda

What happens when an AWS Lambda function is not triggered by any event?

AThe function does not run and no charges occur.

BThe function runs continuously in the background.

CThe function runs once every hour automatically.

DThe function runs only when manually started from the console.

Step-by-Step Solution

Solution:

Step 1: Understand Lambda's event-driven model
A Lambda function runs only when triggered by an event, such as an API call or file upload.
Step 2: Consider billing and execution behavior
If no event triggers the function, it does not execute and you are not charged.
Final Answer:
The function does not run and no charges occur. -> Option A
Quick Check:
Lambda runs only on events = C [OK]

Quick Trick: Lambda runs only on events, no event means no run [OK]

Common Mistakes:

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