CV0-004 Operations and Support Practice Question
A company is performing a disaster recovery test for a critical application. The test reveals that the application's RTO of 1 hour is not being met due to slow database restoration. Which THREE actions could help improve the restoration time? (Select THREE.)
⚠ Common exam trap
CV0-004 often tests the confusion between backup retention and restoration speed; candidates may think more backups help RTO, but retention only affects RPO and available restore points.
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
✓
Implement continuous replication to a standby database
Option A (Implement continuous replication to a standby database) is correct because continuous replication keeps a standby copy nearly in sync with the primary, so failover requires little or no data restoration, drastically cutting the time to recover within the 1-hour RTO. Option B (Pre-warm standby database instances in the recovery region) is correct because pre-warming keeps compute, cache, and database processes already running and initialized, eliminating the startup and warm-up latency that would otherwise delay recovery. Option E (Use provisioned IOPS storage for the database volumes) is correct because restoring or replaying data is I/O-bound, and provisioned IOPS delivers guaranteed, higher disk throughput and lower latency, directly accelerating database restoration. Option C is not appropriate because disabling encryption weakens security and encryption overhead is not the primary bottleneck in slow restores. Option D is not appropriate because increasing backup retention only keeps backups longer; it does not make restoring any single backup faster.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Implement continuous replication to a standby database
Why this is correct
Continuous replication to a standby database keeps a near-current copy available, so failover avoids restoring from backup and removes the slow restoration step. This directly reduces database recovery time, helping the application meet its one-hour RTO.
- ✓
Pre-warm standby database instances in the recovery region
Why this is correct
Pre-warming standby database instances in the recovery region keeps a synchronised copy already running, so failover avoids cold-start provisioning and full restore from backup. This directly targets the one-hour RTO constraint, since recovery time shrinks to promotion and DNS cutover rather than lengthy database restoration.
- ✗
Disable encryption on the database to reduce overhead
Why it's wrong here
Disabling encryption weakens data protection without addressing the restoration bottleneck, which is typically throughput, backup size or storage tier. Removing encryption is never an accepted recovery-time remedy; the correct actions target restore parallelism and backup format instead.
- ✗
Increase the retention period of automated backups
Why it's wrong here
Extending backup retention keeps more recovery points available but does not shorten the time taken to restore any single database. Longer retention is correct when the requirement is recovering from older point-in-time states, not meeting a tighter RTO.
- ✓
Use provisioned IOPS storage for the database volumes
Why this is correct
Provisioned IOPS storage guarantees dedicated, consistent disk throughput for database volumes, so restore operations complete faster than on burstable or shared storage. This directly addresses the slow database restoration that prevents the one-hour RTO from being met.
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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
This CV0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CV0-004 exam.