AWS Certified SysOps Administrator – Associate — Question 123

A SysOps administrator must configure a resilient tier of Amazon EC2 instances for a high performance computing (HPC) application. The HPC application requires minimum latency between nodes.

Which actions should the SysOps administrator take to meet these requirements? (Choose two.)

Answer options

• A. Create an Amazon Elastic File System (Amazon EFS) file system. Mount the file system to the EC2 instances by using user data.
• B. Create a Multi-AZ Network Load Balancer in front of the EC2 instances.
• C. Place the EC2 instances in an Auto Scaling group within a single subnet.
• D. Launch the EC2 instances into a cluster placement group.
• E. Launch the EC2 instances into a partition placement group.

Correct answer: C, D

Explanation

The correct answers are C and D. Placing the EC2 instances in an Auto Scaling group within a single subnet (C) ensures they can scale while maintaining low latency. Launching them into a cluster placement group (D) further optimizes network performance by ensuring instances are physically located close to each other, which is crucial for HPC applications. Options A, B, and E do not directly address the latency and performance requirements as effectively.