Chapter 16

1. 1

Using TTL will automatically remove data older than 30 days, and is the correct answer.

A Lambda function will work but it is complex and not the best solution.

Creating a new DynamoDB table is not a good solution.

DynamoDB Streams won't remove the items from the source table.

2. 1

Creating a separate UAT database is the best option and, therefore, a PITR recovery in a different region is the best solution.

Using DynamoDB Streams and Lambda is a very complicated solution.

Using Glue would likely not work for the migration.

Adding Global Tables would mean that changes made by testing would be written to the production database and, therefore, this doesn't meet the needs of the business.

3. 4

You cannot modify parameters at the RDS instance level using SET, so this isn't correct.

You cannot modify the parameters in the default parameter group.

Modifying the instance to use the default parameter group...