AWS Certified SysOps Administrator – Associate (legacy) — Question 383

A user has deployed an application on an EBS backed EC2 instance. For a better performance of application, it requires dedicated EC2 to EBS traffic. How can the user achieve this?

Answer options

• A. Launch the EC2 instance as EBS dedicated with PIOPS EBS
• B. Launch the EC2 instance as EBS enhanced with PIOPS EBS
• C. Launch the EC2 instance as EBS dedicated with PIOPS EBS
• D. Launch the EC2 instance as EBS optimized with PIOPS EBS

Correct answer: D

Explanation

An EBS-optimized instance provides dedicated throughput between Amazon EC2 and Amazon EBS, which minimizes resource contention and ensures consistent performance. Combining this with Provisioned IOPS (PIOPS) EBS volumes delivers the highest and most reliable I/O performance. Terms like 'EBS dedicated' and 'EBS enhanced' are incorrect as AWS specifically uses the designation 'EBS-optimized' for this feature.