AWS Certified SysOps Administrator – Associate — Question 114

An ecommerce company has built a web application that uses an Amazon Aurora DB cluster. The DB cluster includes memory optimized instance types with both a writer node and a reader node. Traffic volume changes throughout the day. During sudden traffic surges, Amazon CloudWatch metrics for the DB cluster indicate high RAM consumption and an increase in select latency.

A SysOps administrator must implement a configuration change to improve the performance of the DB cluster. The change must minimize downtime and must not result in the loss of data.

Which change will meet these requirements?

Answer options

• A. Add an Aurora Replica to the DB cluster.
• B. Modify the DB cluster to convert the DB cluster into a multi-master DB cluster.
• C. Take a snapshot of the DB cluster. From that snapshot, create a new DB cluster that has larger memory optimized instances.
• D. Increase the disk storage capacity of the DB cluster to double the existing disk capacity.

Correct answer: A

Explanation

Adding an Aurora Replica will help distribute the read traffic and improve performance during high load times, which directly addresses the issue of high RAM consumption and increased latency. Converting to a multi-master cluster (option B) is more complex and may introduce risks, while option C involves downtime for creating a new cluster, and option D does not address the RAM issue effectively.