Review

To check your knowledge from this chapter, here are five questions that you should now be able to answer. Remember the exam techniques from Chapter 1, AWS Certified Database – Specialty Exam Overview, and remove the clearly incorrect answers first to help you:

1. You have an application that has an Amazon Aurora MySQL backend database. The customer wants to grant access to a reporting tool. How can you modify the existing database to give access to the reporting tool, which must be highly available without impacting the performance of the online application in the most cost-efficient way?
   1. Create a cross-region Multi-AZ deployment and create a read replica in the second region.
   2. Move the instance to Amazon EC2 and create and manage snapshots manually.
   3. Create a Multi-AZ Aurora read replica of the Aurora DB instance.
   4. Create a Single-AZ Aurora read replica of the Aurora DB instance. Create a second Single-AZ Aurora read replica from the replica.
2. You are managing a web...