CV0-004 Operations and Support Practice Question
A company wants to implement a disaster recovery strategy with an RTO of 15 minutes and an RPO of 1 hour for a critical application running on AWS. Which approach would best meet these requirements?
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
✓
Continuous replication to a warm standby environment with automated failover
Continuous replication to a standby environment with automatic failover provides the lowest RTO and RPO, meeting the requirements.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Continuous replication to a warm standby environment with automated failover
Why this is correct
Continuous replication to a warm standby keeps a running scaled-down copy current, so automated failover recovers within the 15-minute RTO while replication lag under one hour satisfies the RPO. Pilot light or backup-restore approaches cannot meet that recovery time.
- ✗
Backup to AWS S3 and restore using AWS CloudFormation
Why it's wrong here
Backup to S3 with CloudFormation restoration cannot achieve a 15-minute RTO: restoring data and re-provisioning infrastructure takes far longer than that window. It is tempting because S3 backups with CloudFormation templates suit cost-sensitive workloads with relaxed recovery times, where hours of downtime are acceptable.
- ✗
Cross-region replication with a read replica and manual promotion
Why it's wrong here
Asynchronous cross-region replication typically lags seconds to minutes, risking an RPO breach, and manual promotion plus DNS changes and instance resizing cannot complete within 15 minutes. It suits read scaling and DR where some data loss and longer cutover are tolerated.
- ✗
Daily snapshots of EBS volumes to another region
Why it's wrong here
Daily snapshots give an RPO of up to 24 hours, far beyond the one-hour target, and restoring volumes and instances in another region exceeds a 15-minute RTO. Snapshots suit cost-sensitive workloads tolerating day-old recovery points.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.