Your company has a requirement for launching instances for an application.
The instances need to have a low latency between them and have a high packet network performance.
Which of the following would you do to ensure these requirements are met? Choose 2 answers from the options given below.
Click on the arrows to vote for the correct answer
A. B. C. D.Correct Answers: B and D.
This is given in the AWS Documentation.
A cluster placement group is a logical grouping of instances within a single Availability Zone.
Cluster Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both, if the majority of the network traffic is between the instances in the group.
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.
Option A is incorrect since the instances need to be placed in a single Availability Zone.
Option C is incorrect this is used for graphic-intensive applications.
For more information on cluster placement groups, please refer to the below URL-
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.htmlTo ensure low latency between instances and high network performance, the following two options can be implemented:
Create a cluster placement group grouping the instances in a single availability zone: By creating a cluster placement group, all instances in the group will be launched within a single availability zone, which ensures that the instances are physically close to each other and have a low latency between them. This option is suitable when the instances need to communicate with each other frequently, and low latency is a critical requirement. However, note that this option may not provide high availability as all instances are located within a single availability zone.
Choose an instance type that supports Enhanced Networking for the underlying instance type: Enhanced networking provides higher packet-per-second (PPS) performance, lower network jitter, and lower latencies. Enhanced networking uses single root I/O virtualization (SR-IOV) to provide high-performance networking capabilities on supported instance types. To take advantage of enhanced networking, you need to choose an instance type that supports it, such as C5, M5, R5, and T3 instances. Enhanced networking can help improve the performance of network-bound applications such as databases and big data processing.
Therefore, to meet the requirement of low latency between instances and high network performance, you can create a cluster placement group grouping the instances in a single availability zone and choose an instance type that supports Enhanced Networking for the underlying instance type.