CV0-004 Operations and Support Practice Question
A cloud engineer is implementing a tagging strategy for cost allocation. Which tags should be applied to resources to track costs by business unit and environment?
⚠ Common exam trap
A common mix-up: candidates confuse organizational cost dimensions (business unit, environment) with other common tag keys like Owner, Project, or Region, which are useful but do not satisfy the stated allocation requirement.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
BusinessUnit and Environment
BusinessUnit and Environment are the two dimensions explicitly required to track costs by business unit and environment, so tagging resources with these keys directly enables cost allocation reports filtered on those values. Cloud providers' cost explorers and billing dashboards group spend by tag key/value, making these the correct tag pair.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
BusinessUnit and Environment
Why this is correct
BusinessUnit and Environment map spend to the two required dimensions: which part of the organisation owns the resource and whether it runs in production or non-production. These tags enable cost allocation reporting by both business unit and environment.
- ✗
Owner and Department
Why it's wrong here
Owner and Department identify people and organisational units, not the business unit and environment dimensions the stem requires for cost allocation. They are tempting because ownership tags support accountability and chargeback, and would be correct if the goal were tracking spend per team or individual.
- ✗
Project and Application
Why it's wrong here
Project and Application identify workloads, not the business unit or environment dimensions the stem specifies for cost allocation. They are tempting because application tags enable per-service cost visibility, and would be correct if the requirement were tracking spend by product or project rather than by unit and environment.
- ✗
Location and Region
Why it's wrong here
Location and Region describe where a resource runs, not which business unit owns it or which environment it serves, so cost reports cannot be grouped as required. They are tempting because regional tags aid latency and compliance reporting, and would be correct for geographic cost breakdowns.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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