[Solved] A developer wrote this Lambda trigger code for DynamoDB Streams but it never executes. What is the likely error? function handler(event) { console.log('Event received'); } Options:... | DynamoDB

DynamoDB - with Serverless

A developer wrote this Lambda trigger code for DynamoDB Streams but it never executes. What is the likely error? function handler(event) { console.log('Event received'); } Options: A) Missing export statement for handler B) Incorrect DynamoDB table name C) Stream not enabled on the table D) Lambda function timeout too high

AIncorrect DynamoDB table name

BMissing export statement for handler

CStream not enabled on the table

DLambda function timeout too high

Step-by-Step Solution

Solution:

Step 1: Check Lambda function export
Lambda requires the handler function to be exported to be invoked.
Step 2: Identify missing export
Code lacks export statement, so Lambda cannot find the handler to execute.
Final Answer:
Missing export statement for handler -> Option B
Quick Check:
Export handler needed = Missing export statement for handler [OK]

Quick Trick: Always export Lambda handler function [OK]

Common Mistakes:

MISTAKES

Assuming wrong table name stops Lambda trigger
Forgetting to enable stream on table
Thinking timeout affects trigger execution

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What is the likely error?

Step 1: Check Lambda function export

Step 2: Identify missing export

Final Answer:

Quick Check:

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