AWS Certified Data Analytics Specialty 2021 – Hands-On - DynamoDB Streams – Hands-On

The video tutorial explains how to enable and configure DynamoDB streams, create a Lambda function to process stream updates, and resolve IAM permissions issues. It also covers testing the setup by performing create, update, and delete operations on a DynamoDB table and checking the logs in CloudWatch. Finally, it advises on disabling the stream trigger after testing.

What is the purpose of enabling a DynamoDB stream?

• To replicate data to another region

• To delete data from the table

• To backup the table data

• To capture changes to items in the table

Which option allows you to capture both new and old images in a DynamoDB stream?

• New image

• Key attributes

• Old image

• New and old images

What is the role of a Lambda function in processing a DynamoDB stream?

• To create new tables

• To delete the stream

• To log updates made to the table

• To modify the stream data

What permissions are necessary for a Lambda function to read from a DynamoDB stream?

• EC2 full access

• DynamoDB read-only access

• DynamoDB write access

• S3 full access

What is the significance of setting a batch size for a DynamoDB trigger?

• It limits the number of streams

• It sets the maximum size of the table

• It determines the number of records processed at a time

• It defines the number of Lambda functions

Which operation was NOT performed during the testing of the DynamoDB stream?

• Backup

• Delete

• Create

• Update

Where can you verify the logs of the operations performed on a DynamoDB stream?

• AWS S3

• AWS CloudWatch

• AWS EC2

• AWS RDS