SK0-005 security-disaster-recovery Practice Question
A small law firm has a single on-premises server running their case management software, email, and document storage. They perform a full backup each night at 11 PM to an external USB 4 TB drive, which is then stored on a shelf in the server room. The server room is located in the basement of their office building. Last week, an electrical fire started in the server room, completely destroying the server and the backup drive. The firm lost all data since the last backup, and it took two weeks to procure new hardware and restore from an older, off-site backup that was taken during a manual process three months ago. Their insurance company now requires a formal disaster recovery plan. The firm has a limited budget and minimal IT staff. They want to prevent data loss and minimize downtime in future disasters. What is the BEST course of action to improve their disaster recovery capabilities?
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
✓
Subscribe to a cloud backup service that performs automatic daily backups to a remote data center.
Option B is correct because cloud backup automatically sends data to a remote location, satisfying the off-site requirement of the 3-2-1 backup rule, is cost-effective for a small firm, and requires little IT overhead. Option A is wrong because mirroring on-site still leaves them vulnerable to site-wide disasters like fire. Option C is wrong because a fireproof safe does not protect against all disaster types and keeps the backup on-site. Option D is wrong because it still stores the backup on-site, increasing cost and management without solving the off-site need.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Subscribe to a cloud backup service that performs automatic daily backups to a remote data center.
Why this is correct
Cloud backup ensures an off-site copy is created automatically, protecting against local disasters. It is typically priced per gigabyte with low upfront cost, fits a limited budget, and can be managed with minimal IT staff.
- ✗
Increase backup frequency to every hour and store the drive in a desk drawer in a different room on the same floor.
Why it's wrong here
More frequent backups reduce data loss but still store the only backup copy on-site, so a building-level disaster would destroy both production data and backups.
- ✗
Purchase a fireproof safe for the server room and store the USB backup drive in it after each backup.
Why it's wrong here
While this reduces fire risk, it does not protect against other perils (e.g., flood, theft) and still leaves the backup on-site. The 3-2-1 rule requires at least one off-site copy.
- ✗
Install a second server on-site and configure real-time mirroring between the two servers.
Why it's wrong here
This provides hardware redundancy but does not protect against site-wide disasters (fire, flood, theft). It also requires significant investment in new hardware and ongoing maintenance, which is not cost-effective for the firm.
Go deeper
Related to this question
Learn chapter
Server Installation and Site Preparation
Key term
Disaster recovery plan
A Disaster Recovery Plan (DRP) is a documented, structured approach that outlines how an organization can quickly resume critical IT systems and operations after a disruptive event.
Key term
Recovery
Recovery is the process of restoring systems, data, and operations after a security incident, failure, or disaster to return to normal functioning.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed July 2026 · checked against the official CompTIA exam blueprint
This SK0-005 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 SK0-005 exam.