AWS Certified Database – Specialty — Question 62

A Database Specialist is working with a company to launch a new website built on Amazon Aurora with several Aurora Replicas. This new website will replace an on-premises website connected to a legacy relational database. Due to stability issues in the legacy database, the company would like to test the resiliency of
Aurora.
Which action can the Database Specialist take to test the resiliency of the Aurora DB cluster?

Answer options

• A. Stop the DB cluster and analyze how the website responds
• B. Use Aurora fault injection to crash the master DB instance
• C. Remove the DB cluster endpoint to simulate a master DB instance failure
• D. Use Aurora Backtrack to crash the DB cluster

Correct answer: B

Explanation

The correct answer is B because using Aurora fault injection allows for controlled testing of the system's response to failures, specifically targeting the master DB instance. Options A and C do not provide a method to specifically test the resilience in a controlled manner, and option D involves using Backtrack, which is not designed for testing resiliency through crashing the DB cluster.