[Solved] This Lambda function code causes an error when triggered:def handler(event, context): return event['data'] * 3What is the likely cause? | AWS

AWS - Lambda

This Lambda function code causes an error when triggered:

def handler(event, context):
    return event['data'] * 3

What is the likely cause?

AThe function is missing the context parameter.

BThe event dictionary does not have the 'data' key.

CThe return statement syntax is incorrect.

DLambda functions cannot multiply values.

Step-by-Step Solution

Solution:

Step 1: Identify cause of error in code
The function tries to access event['data'], which may not exist.
Step 2: Understand error from missing key
If 'data' key is missing in event, a KeyError occurs causing the function to fail.
Final Answer:
The event dictionary does not have the 'data' key. -> Option B
Quick Check:
Missing event key causes error = B [OK]

Quick Trick: Check if event keys exist before using them [OK]

Common Mistakes:

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