Optimizing Performance for Low Inter-Node Latency in a Compute Cluster
Question
In order to optimize performance for a compute cluster that requires low inter-node latency, which feature in the following list should you use?
Answers
Explanations
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A. B. C. D. E.Answer - B.
A placement group is a logical grouping of instances within a single Availability Zone.
Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both.
To provide the lowest latency, and the highest packet-per-second network performance for your placement group, choose an instance type that supports enhanced networking.
For more information on placement groups please visit the URL:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.htmlTo optimize performance for a compute cluster that requires low inter-node latency, the best feature to use is Placement Groups.
Placement Groups is an AWS feature that enables you to group instances in a way that maximizes network performance. This feature ensures that instances are placed close to each other, thereby reducing the network latency between them. Placement Groups are recommended for applications that require low-latency, high-throughput network performance or instances that need to communicate with each other frequently.
AWS Direct Connect is a service that allows you to establish a dedicated network connection between your data center and AWS. This service can help to improve network performance by reducing network congestion and increasing bandwidth, but it doesn't specifically address inter-node latency for a compute cluster.
VPC private subnets are a way to isolate resources within your VPC and to control access to them. Private subnets do not provide any specific performance optimization for inter-node latency within a compute cluster.
EC2 Dedicated Instances are instances that run on dedicated hardware and are not shared with other customers. This feature can provide additional security and compliance benefits but does not specifically address inter-node latency for a compute cluster.
Multiple Availability Zones are a way to increase the availability and fault tolerance of your applications by deploying them across multiple physical locations. While this can help to ensure that your application remains available in the event of a failure, it does not specifically address inter-node latency for a compute cluster.
In summary, Placement Groups are the best feature to use to optimize performance for a compute cluster that requires low inter-node latency.
