RDS and DynamoDB

Which service offers automatic scaling based on read and write capacity units?

• Amazon RDS

• Amazon EC2 Auto Scaling

• Amazon DynamoDB

• AWS Lambda

Which service is best suited for storing structured data with complex queries?

• Amazon DynamoDB

• Amazon RDS

• Amazon S3

• Amazon EC2

Which service offers a wider range of supported database engines?

• Amazon S3

• Amazon DynamoDB

• Amazon RDS

• AWS Lambda

What are the benefits of using composite keys in DynamoDB?

• Simplifies data modeling for all use cases.

• Enables efficient querying based on specific combinations of attributes.

• Reduces storage capacity requirements.

• Limited benefit, single primary keys are generally preferred.

Which of the following is a valid example of a composite primary key in DynamoDB?

Give the Best answer!

• UserID (string)

• Username (string), Email (string)

• ProductID (string), OrderDate (timestamp)

• BookID (number)

1. The primary key can be a single ________ key or a combination of a _____ key and a range key.

1. To improve performance for global applications, DynamoDB offers ________ with automatic replication across geographically distributed regions.

1. To optimize performance for specific queries, you can define ______ for reads and writes on a table.

1. Security is a top concern, and RDS offers features like ______ to control network access to your database.

1. RDS offers _________ capabilities to ensure database availability in case of outages or regional disruptions.