An Amazon RDS EBS-Optimized Instance with Provisioned IOPS (PIOPS) Storage

question 146

Multiple Choice

An Amazon RDS EBS-optimized instance with Provisioned IOPS (PIOPS) storage is using less than half of its allocated IOPS over the course of several hours under constant load. The RDS instance exhibits multi-second read and write latency, and uses all of its maximum bandwidth for read throughput, yet the instance uses less than half of its CPU and RAM resources. What should a Database Specialist do in this situation to increase performance and return latency to sub-second levels?

• A) Increase the size of the DB instance storage
• B) Change the underlying EBS storage type to General Purpose SSD (gp2)
• C) Disable EBS optimization on the DB instance
• D) Change the DB instance to an instance class with a higher maximum bandwidth

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