Q70 — AWS SAP-C02 Ch.3

Question 70 of 75 | ← Chapter 3

Q295. A company uses AWS Organizations to manage its AWS accounts. The company needs a list of all its Amazon EC2 instances that have underutilized CPU or memory usage. The company also needs recommendations for how to downsize these underutilized instances. Which solution will meet these requirements with the LEAST effort?

• A. Install a CPU and memory monitoring tool from AWS Marketplace on all the EC2 instances. Store the findings in Amazon S3.Implement a Python script to identify underutilized instances. Reference EC2 instance pricing information for recommendations about downsizing options.
• B. Install the Amazon CloudWatch agent on all the EC2 instances by using AWS Systems Manager. Retrieve the resource optimization recommendations from AWS Cost Explorer in the organization's management account. Use the recommendations to downsize underutilized instances in all accounts of the organization. ✓
• C. Install the Amazon CloudWatch agent on all the EC2 instances by using AWS Systems Manager. Retrieve the resource optimization recommendations from AWS Cost Explorer in each account of the organization. Use the recommendations to downsize underutilized instances in all accounts of the organization.
• D. Install the Amazon CloudWatch agent on all the EC2 instances by using AWS Systems Manager. Create an AWS Lambda function to extract CPU and memory usage from all the EC2instances. Store the findings as files in Amazon S3.Use Amazon Athena to find underutilized instances. Reference EC2 instance pricing information for recommendations about downsizing options.

Correct Answer: B. Install the Amazon CloudWatch agent on all the EC2 instances by using AWS Systems Manager. Retrieve the resource optimization recommendations from AWS Cost Explorer in the organization's management account. Use the recommendations to downsize underutilized instances in all accounts of the organization.

Explanation

To obtain a list of all Amazon EC2 instances that have underutilized CPU or memory usage and recommendations for how to downsize these instances with the least effort, a solution using the Amazon CloudWatch agent and AWS Cost Explorer should be implemented. Therefore, the correct solution is:B. Step B installs the Amazon CloudWatch agent on all the EC2 instances and retrieves the resource optimization recommendations from AWS Cost Explorer in the organization's management account. The solutions architect then uses the recommendations to downsize underutilized instances in all accounts in the organization. Option A is incorrect because installing a CPU and memory monitoring tool on all the EC2 instances requires additional configuration and maintenance effort. Option C is also incorrect because retrieving the resource optimization recommendations from AWS Cost Explorer in each account of the organization requires additional configuration and maintenance effort. Option D is incorrect because creating an AWS Lambda function to extract CPU and memory usage data from all the EC2 instances and storing the findings as files in Amazon S3 requires additional implementation effort.