AWS Certified SysOps Administrator – Associate — Question 176

Users are periodically experiencing slow response times from a relational database. The database runs on a burstable Amazon EC2 instance with a 350 GB General Purpose SSD (gp2) Amazon Elastic Block Store (Amazon EBS) volume. A SysOps administrator monitors the EC2 instance in Amazon CloudWatch and observes that the VolumeReadOps metric drops to less than 10% of its peak value during the periods of slow response.

What should the SysOps administrator do to ensure consistently high performance?

Answer options

• A. Convert the gp2 volume to a General Purpose SSD (gp3) EBS volume.
• B. Convert the gp2 volume to a Cold HDD (sc1) EBS volume.
• C. Convert the EC2 instance to a memory optimized instance type.
• D. Activate unlimited mode on the EC2 instance.

Correct answer: A

Explanation

The correct answer is A because converting the gp2 volume to a gp3 volume allows for better performance characteristics and consistent IOPS, which addresses the observed issue. Options B and C do not improve the performance for the specific requirements of a relational database, while D does not directly resolve the performance limitations associated with the volume type.