Question

7. You are creating a High-Performance Computing (HPC) cluster and need very low latency and high bandwidth between instances. What combination of the following will allow this? (Choose 3 answers)

A. Use an instance type with 10 Gbps network performance.
B. Put the instances in a placement group.
C. Use Dedicated Instances.
D. Enable enhanced networking on the instances.
E. Use Reserved Instances.

Answer 1

To achieve low latency and high bandwidth in an HPC cluster, one should use an instance type with 10 Gbps network performance, place the instances in a placement group, and enable enhanced networking.

Step-by-step explanation:

When creating a High-Performance Computing (HPC) cluster with the need for very low latency and high bandwidth between instances, there are specific configurations that you can use to achieve this performance:

• Use an instance type with 10 Gbps network performance: This will provide the high bandwidth required for HPC workloads.
• Put the instances in a placement group: Placement groups are a networking construct that allows instances to benefit from low-latency, 10 Gbps network performance when they are located within a single Availability Zone.
• Enable enhanced networking on the instances: Enhanced networking uses more efficient networking technology to provide higher I/O performance and lower CPU utilization.

It's important to note that using Dedicated Instances or Reserved Instances does not directly affect networking performance. Dedicated Instances are used for regulatory requirements, whereas Reserved Instances provide a cost-saving option for long-term use.