CV0-004 Operations and Support Practice Question
A cloud team is planning a disaster recovery drill for their application running in a public cloud. They want to validate that the recovery process meets the defined RTO and RPO. Which THREE activities should be included in the DR drill? (Select THREE.)
⚠ Common exam trap
CV0-004 often tests the distinction between DR drill activities and other operational tasks like cost optimization or chaos engineering, and candidates may incorrectly include activities that do not directly validate RTO/RPO.
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
✓
Measure the time taken to restore services from backups.
The drill must validate the two key recovery objectives, so option B is correct because measuring the time taken to restore services from backups directly tests whether the actual recovery time meets the defined RTO. Option D is correct because performing a failover to the DR site and verifying application functionality proves that the recovery environment works end-to-end and that services can actually be resumed at the DR location. Option E is correct because checking the timestamp of the most recent backup or replica confirms the data loss window, which is exactly what RPO measures. Option A is not part of validating RTO/RPO; cost optimization is a separate FinOps activity. Option C, chaos engineering, tests resilience to random failures but is not a required DR drill activity for validating recovery time and data currency against RTO and RPO.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Review cost optimization recommendations for the DR environment.
Why it's wrong here
Cost optimisation reviews examine spend efficiency, not whether recovery actually restores service within the RTO or loses no more than the RPO. It is tempting because DR environments idle expensively, so cost review belongs in periodic environment governance, just not inside a drill validating recovery time and data loss.
- ✓
Measure the time taken to restore services from backups.
Why this is correct
Measuring restore duration directly validates the recovery time objective, confirming services return within the agreed RTO. Timing restoration from backups exercises the actual recovery mechanism, exposing whether backup retrieval, data transfer and service start-up collectively satisfy the RTO constraint defined in the stem.
- ✗
Run chaos engineering experiments to introduce random failures.
Why it's wrong here
Chaos experiments inject random failures to test resilience under unexpected conditions, which does not measure whether the documented recovery procedure meets the RTO and RPO. It is tempting because it validates system robustness, and would be the right choice for continuously hardening production resilience rather than validating a DR plan.
- ✓
Perform a failover to the DR site and verify application functionality.
Why this is correct
Failing over to the DR site and verifying application functionality directly validates the RTO, since recovery time is measured from outage to restored service. It also exercises the actual failover mechanism, confirming the standby environment works. This satisfies the stem's requirement to validate that the recovery process meets the defined RTO and RPO.
- ✓
Check the timestamp of the most recent backup or replica to ensure data is within RPO.
Why this is correct
Verifying the newest backup or replica timestamp directly measures data currency against the RPO target, confirming the maximum tolerable data loss is not exceeded. This validates the recovery point objective during the drill, rather than merely assuming replication succeeded.
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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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