AWS Certified Solutions Architect – Associate (SAA-C03) — Question 924

A company has migrated several applications to AWS in the past 3 months. The company wants to know the breakdown of costs for each of these applications. The company wants to receive a regular report that includes this information.

Which solution will meet these requirements MOST cost-effectively?

Answer options

• A. Use AWS Budgets to download data for the past 3 months into a .csv file. Look up the desired information.
• B. Load AWS Cost and Usage Reports into an Amazon RDS DB instance. Run SQL queries to get the desired information.
• C. Tag all the AWS resources with a key for cost and a value of the application's name. Activate cost allocation tags. Use Cost Explorerto get the desired information.
• D. Tag all the AWS resources with a key for cost and a value of the application's name. Use the AWS Billing and Cost Management console todownload bills for the past 3 months. Look up the desired information.

Correct answer: C

Explanation

Tagging resources with application names and enabling cost allocation tags allows AWS Cost Explorer to easily categorize and report on costs per application without additional infrastructure costs. Using Amazon RDS introduces unnecessary database hosting costs, while downloading CSVs or bills via AWS Budgets or Billing consoles involves manual, inefficient processes that do not scale for regular reporting.