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SAP-C02: Achieving High-Throughput, Low-Latency Network Connections in AWS with Cluster Placement Groups

By: Author Alex Lim

Posted on

Categories Exam

Learn how to optimize network performance in AWS by launching EC2 instances into a cluster placement group and leveraging enhanced networking for high-throughput, low-latency connections between instances.

Table of Contents

Question

A company has a new application that needs to run on five Amazon EC2 instances in a single AWS Region. The application requires high-throughput, low-latency network connections between all of the EC2 instances where the application will run. There is no requirement for the application to be fault tolerant.

Which solution will meet these requirements?

A. Launch five new EC2 instances into a cluster placement group. Ensure that the EC2 instance type supports enhanced networking.
B. Launch five new EC2 instances into an Auto Scaling group in the same Availability Zone. Attach an extra elastic network interface to each EC2 instance.
C. Launch five new EC2 instances into a partition placement group. Ensure that the EC2 instance type supports enhanced networking.
D. Launch five new EC2 instances into a spread placement group. Attach an extra elastic network interface to each EC2 instance.

Answer

A. Launch five new EC2 instances into a cluster placement group. Ensure that the EC2 instance type supports enhanced networking.

Explanation

To meet the requirements of high-throughput, low-latency network connections between all EC2 instances running the application in a single AWS Region, you should choose option A: Launching five new EC2 instances into a cluster placement group and ensuring that the EC2 instance type supports enhanced networking.

Here’s why this option is the correct choice:

  1. Cluster placement group: A cluster placement group is a logical grouping of EC2 instances within a single Availability Zone. It enables low-latency networking between instances by trying to place them in close physical proximity to each other. This reduces network latency and improves overall performance.
  2. Enhanced networking: To achieve high-throughput, low-latency network connections, it is essential to use an EC2 instance type that supports enhanced networking. Enhanced networking provides higher packet per second (PPS) performance, lower network jitter, and lower latency. You should select an instance type that supports enhanced networking when launching the EC2 instances into the cluster placement group.
  3. No fault tolerance requirement: The question states that there is no requirement for the application to be fault tolerant. Therefore, you don’t need to consider fault tolerance mechanisms like Auto Scaling groups or additional network interfaces.

By launching the five EC2 instances into a cluster placement group and ensuring that the EC2 instance type supports enhanced networking, you can achieve the desired high-throughput, low-latency network connections between the instances.

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