The company wants to ensure that the network performance can support the required communication between the EC2 instancesWhat should a SysOps administrator do to meet these requirements?
Create a cluster placement group. Back up the existing EC2 instance to an Amazon Machine Image (AMI). Restore the EC2 instance from the AMI into the placement group. Launch the additional EC2 instances into the placement group.
Back up the existing EC2 instance to an Amazon Machine Image (AMI). Create a launch template from the existing EC2 instance by specifying the AMI. Create an Auto Scaling group and configure the desired instance count.
Create a Network Load Balancer (NLB) and a target group. Launch the new EC2 instances and register them with the target group. Register the existing EC2 instance with the target group. Pass all application traffic through the NLB.
Back up the existing EC2 instance to an Amazon Machine Image (AMI). Create additional clones of the EC2 instance from the AMI in the same Availability Zone where the existing EC2 instance is located.
Explanations:
Creating a cluster placement group ensures that the EC2 instances are placed in close proximity within the same Availability Zone, allowing for high-speed and low-latency communication. By backing up the existing instance to an AMI and launching additional instances within this placement group, the architecture will be optimized for HPC applications requiring rapid inter-instance communication.
While creating a launch template and an Auto Scaling group can help with scaling EC2 instances, it does not specifically address the requirement for high-speed, low-latency communication between instances. Without a placement group, the instances may be placed far apart in different physical hardware, leading to suboptimal network performance.
Using a Network Load Balancer (NLB) can help distribute traffic, but it does not ensure low-latency communication between EC2 instances. The NLB primarily manages incoming traffic rather than optimizing the internal communication between instances, which is crucial for high-performance computing applications.
While creating additional clones of the EC2 instance can help scale out, simply cloning instances in the same Availability Zone does not guarantee high-speed, low-latency communication. Without a placement group, the network performance may not meet the requirements for HPC applications.
Based on what I know, the answer is:
Create a cluster placement group. Back up the existing EC2 instance to an Amazon Machine Image (AMI). Restore the EC2 instance from the AMI into the placement group. Launch the additional EC2 instances into the placement group.