AWS Certified SysOps Administrator – Associate — Question 418

A global company operates out of five AWS Regions. A SysOps administrator wants to identify all the company's tagged and untagged Amazon EC2 instances.
The company requires the output to display the instance ID and tags.
What is the MOST operationally efficient way for the SysOps administrator to meet these requirements?

Answer options

• A. Create a tag-based resource group in AWS Resource Groups.
• B. Use AWS Trusted Advisor. Export the EC2 On-Demand Instances check results from Trusted Advisor.
• C. Use Cost Explorer. Choose a service type of EC2-Instances, and group by Resource.
• D. Use Tag Editor in AWS Resource Groups. Select all Regions, and choose a resource type of AWS::EC2::Instance.

Correct answer: D

Explanation

Tag Editor in AWS Resource Groups allows administrators to search for resources across multiple Regions by specific resource types, such as AWS::EC2::Instance, and displays both tagged and untagged resources along with their current tags. Tag-based resource groups (Option A) only find resources that already have specific tags, which would exclude untagged instances. AWS Trusted Advisor (Option B) and Cost Explorer (Option C) do not provide a direct, comprehensive list of all EC2 instances and their associated tags in the required operational format.