AWS Certified SysOps Administrator – Associate (legacy) — Question 546

A company has several AWS accounts and has set up consolidated billing through AWS Organizations. The total monthly bill has been increasing over several months, and a SysOps Administrator has been asked to determine what is causing this increase.
What is the MOST comprehensive tool that will accomplish this task?

Answer options

• A. AWS Cost Explorer
• B. AWS Trusted Advisor
• C. Cost allocation tags
• D. Resource groups

Correct answer: C

Explanation

Cost allocation tags enable the organization to categorize and track AWS costs at a granular level across consolidated accounts, making them essential for identifying the specific resources causing the cost increases. While AWS Cost Explorer is used to visualize costs, its ability to pinpoint specific cost drivers relies on these tags. AWS Trusted Advisor and Resource Groups are not designed to provide comprehensive, detailed billing analysis.