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CV0-004 Practice Question: A company uses a hybrid cloud model with…
A company uses a hybrid cloud model with on-premises servers and a public cloud. The IT team wants to ensure that critical data is backed up daily and retained for 30 days. The backup solution must be cost-effective. Which of the following backup strategies BEST meets these requirements?
⚠ Common exam trap
A common misconception is that differential backups are more efficient than incremental backups, but in this scenario, daily differentials grow over the 30-day period, making them less cost-effective than daily incrementals with a weekly full backup.
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
✓
Incremental backup daily to cloud storage, with weekly full backup.
It combines daily incremental backups to cloud storage with a weekly full backup, minimizing daily data transfer and storage costs while ensuring a full recovery point within the week. The 30-day retention is achieved by retaining the weekly full backup and all incremental backups for 30 days, which is cost-effective compared to daily full backups. This strategy aligns with the 3-2-1 backup rule and leverages cloud storage's pay-as-you-go model.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Full backup daily to cloud storage with a 30-day lifecycle policy.
Why it's wrong here
Full daily backups are expensive and redundant for daily retention needs.
- ✗
Full backup daily to tape, retained for 30 days.
Why it's wrong here
Tape is not cloud-based and daily full backups are costly and time-consuming.
- ✗
Differential backup daily to cloud storage, with full backup every 30 days.
Why it's wrong here
Differential backups grow daily and may be larger than incremental, increasing storage cost.
- ✓
Incremental backup daily to cloud storage, with weekly full backup.
Why this is correct
Incremental backups are small and cost-effective; weekly full provides baseline; retention can be set to 30 days.
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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.