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What is the main purpose of using a Lambda function with DynamoDB in AWS?

easy🧠 Conceptual Q11 of 15
DynamoDB - with Serverless
What is the main purpose of using a Lambda function with DynamoDB in AWS?
ATo run code automatically when DynamoDB data changes
BTo manually update DynamoDB tables from the AWS console
CTo create new DynamoDB tables without coding
DTo backup DynamoDB data to S3 manually
Step-by-Step Solution
Solution:

  1. Step 1: Understand Lambda triggers

    Lambda functions can be triggered by events, such as changes in DynamoDB tables.

  2. Step 2: Identify the purpose of automation

    This allows automatic code execution when data changes, without manual intervention.

  3. Final Answer:

    To run code automatically when DynamoDB data changes -> Option A

  4. Quick Check:

    Lambda triggers = automatic code run [OK]
Quick Trick: Lambda runs code on events like DynamoDB changes [OK]
Common Mistakes:
MISTAKES
  • Thinking Lambda manually updates tables
  • Confusing Lambda with backup tools
  • Assuming Lambda creates tables automatically

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