Which option can be attached to resources and used for classification in billing reports so that AWS costs can be aggregated and allocated per department or project?

1 / 1
Select an answer
CorrectB

Explanation

Question Overview

A question about choosing the mechanism for classifying and allocating costs by department.

Requirements to satisfy
  • 1「per department or project」The classification axis = the key = the tag
  • 2「costs can be aggregated and allocated」Aggregation by classification = cost allocation tags
  • 3「attached to resources」Attaching tags to resources
Per-option explanation
AIncorrect

Resource groups

Resource groups are an organizing feature that bundles many resources (such as EC2 and S3) by a condition like 'belonging to the same project' so you can list and operate on them together in the console.

They are merely a feature to make the management screen easier to view and operate, NOT a mechanism that breaks down the bill amount by department, so it is incorrect. To classify costs in billing, you must activate the tags attached to resources as cost allocation tags.

BCorrect

Cost allocation tags

Correct. Cost allocation tags are a mechanism that lets you attach keys and values such as 'Department' or 'Project' to resources and aggregate and allocate costs by that classification in billing reports. For example, if you tag EC2 or S3 with Department=Sales or Project=E-commerce site, you can check aggregations by classification in the billing report, such as 'this month's spend for Sales' or 'the amount spent on the e-commerce site project'. This helps you understand which team used how much, which supports cost visibility and accountability.

CIncorrect

AWS Budgets

AWS Budgets is a tool for setting a budget amount and sending alerts when you are likely to exceed it.

It is a budget management mechanism, NOT something you attach to individual resources to classify the bill by department, so it is incorrect.

DIncorrect

Cost and Usage Report (CUR)

The Cost and Usage Report (CUR) is the report that outputs the most detailed billing and usage data.

It is an output for checking and analyzing costs, NOT something you attach to a resource to create a classification axis, so it is incorrect. To aggregate the CUR by tag, you first activate cost allocation tags.

Key Takeaway

'Aggregate and allocate costs per department/project' is cost allocation tags. Classify with tags and analyze in Cost Explorer or the CUR. A foundational cost management technique.

Related Links