You are working as an AWS SysOps administrator managing migration of on-premises application servers to AWS. Developers are launching EC2 instances to perform testing of the application in the cloud. You are concerned that too many EC2 instances might get launched. Which of the following services can be used to check if the number of EC2 Instances approaches the limit?

Answer options:

A.Amazon CloudWatch
B.AWS Trusted Advisor
C.AWS Systems Manager
D.AWS Config

Correct Answer – B
AWS Trusted Advisor could be used to check usage details of AWS resources and whether your account approaches or exceeds the limit (also known as quotas) for AWS services and resources.
Option A is incorrect as Amazon CloudWatch is a tool that monitors application usage & provides operational health of resources, but does not provide service limit usage details of resources in AWS.
Option C is incorrect as AWS Systems Manager helps manage & control resources in the AWS cloud, but will not provide service limit usage details of resources in AWS.
Option D is incorrect as AWS Config is a tool to audit & evaluate the configuration of AWS resources. But it will not provide service limit usage details of resources in AWS.
For more information on AWS Trusted Advisor, refer to the following URL-
https://aws.amazon.com/premiumsupport/technology/trusted-advisor/faqs