Question

A cloud operations team is asked by finance to break down monthly spending by department so each business unit can be charged for the resources it consumes. Currently all resources run in a single shared account and the bill arrives as one lump sum with no breakdown. Which approach should the team implement to enable accurate per-department cost attribution?

Accepted Answer

Apply a consistent tagging policy (e.g., a 'department' cost-allocation tag) to all resources and enable cost allocation reporting grouped by that tag

Answer

Enable detailed CloudWatch metrics on every resource so utilization data can be exported to the finance team

Answer

Purchase reserved instances for each department to lock in predictable pricing

Answer

Move each department's workloads into separate subnets within the shared VPC