Quiz - Chapter 8 - Databases

Question 1

Amazon Aurora is compatible with which of the following database engines?

Answer 1

MySQL and Postgres

Question 2

Which one of the following features does RDS Aurora NOT support?

Answer 2

Universal HA is not a feature of Aurora

Question 3

Which of the following is NOT a benefit of using RDS Multi-AZ?

Answer 3

• Your secondary copy is automatically used as a read replica for your database.
• This allows you to double your read performance automatically.
• Multi-AZ does not provide a read replication

Question 4

True or False? RDS read replicas have their own endpoints.

Answer 4

TRUE

Question 5

What type of read would you use with DynamoDB if you can’t have stale data in your application?

Answer 5

Strongly consistent reads would ensure you don’t have stale data

Question 6

Fill in the blank: DynamoDB is a ____ database.

Answer 6

DynamoDB is a non-relational database

Question 7

True or False? DynamoDB supports the ability to back up and restore your data.

Answer 7

TRUE

Question 8

True or False? RDS read replicas can be created in different Regions from the source DB instance.

Answer 8

TRUE

You may use a read replica for disaster recovery of the source DB instance, either in the same AWS Region or in another Region.