AWS Certified Data Analytics Specialty 2021 – Hands-On - DynamoDB Basic APIs – Hands-On

The video tutorial covers various operations in DynamoDB, including scanning tables, creating, updating, and retrieving items. It explains batch operations, table deletion, and the use of scan and query techniques with filters and conditions. The tutorial emphasizes the importance of partition keys and sort keys in queries and concludes with a summary of the discussed APIs.

What is the purpose of the 'put item' operation in Dynamic DB?

• To retrieve an existing item

• To delete an item from the table

• To add a new item to the table

• To update an existing item

Which operation is used to retrieve the content of an item in Dynamic DB?

• Delete item

• Update item

• Put item

• Get item

What is a more efficient alternative to using scan and batch delete to remove all items from a table?

• Using a put operation

• Editing each item individually

• Dropping the table

• Using a get operation

In a query operation, which keys are essential for efficient data retrieval?

• Timestamp and content

• User ID and content

• Hash key and sort key

• Primary key and foreign key

Where is the filtering done when using a scan operation with a filter in Dynamic DB?

• On the server side

• In the Dynamic DB directly

• On the client side

• In the database index