How do you correctly set up an AWS Lambda function to respond to changes in a DynamoDB table using Streams?

easy📝 Syntax Q3 of 15

DynamoDB - with Serverless

AEnable DynamoDB Streams on the table and add the Lambda function as an event source mapping

BConfigure the Lambda function to poll the DynamoDB table every minute

CAttach the Lambda function directly to the DynamoDB table without Streams

DUse AWS Glue to connect Lambda and DynamoDB

Step-by-Step Solution

Solution:

Step 1: Enable DynamoDB Streams
Streams must be enabled on the DynamoDB table to capture data changes.
Step 2: Create event source mapping
Configure Lambda to use the DynamoDB Stream as an event source, so it triggers on changes.
Final Answer:
Enable DynamoDB Streams on the table and add the Lambda function as an event source mapping -> Option A
Quick Check:
Streams + event source mapping triggers Lambda [OK]

Quick Trick: Enable Streams and map Lambda as event source [OK]

Common Mistakes:

MISTAKES

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