SK0-005 troubleshooting Practice Question
A technician is troubleshooting a server that fails to boot. The server displays a 'Boot Device Not Found' error. The technician verifies that the hard drives are spinning and appear in the RAID controller's BIOS. What should the technician check next?
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
✓
Boot order in BIOS
Option B is correct because boot order is a common cause of 'Boot Device Not Found' when drives are detected. Option A is wrong because if drives are spinning and detected, cables are likely fine. Option C is wrong because missing OS files typically produce a different error. Option D is wrong because the array status is already verified as healthy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Boot order in BIOS
Why this is correct
If the boot order is set to a non-bootable device or the wrong disk, the server will not find the boot device even though drives are present.
- ✗
Operating system files
Why it's wrong here
Missing or corrupt OS files would typically generate a different error, such as 'Missing operating system' or a blue screen.
- ✗
SATA cable connections
Why it's wrong here
While loose cables can cause boot issues, the drives are spinning and detected by the controller, so cables are likely fine.
- ✗
RAID array status
Why it's wrong here
The technician already verified the drives appear in the RAID controller, so the array status is likely healthy; if it were degraded, the drives might not appear.
Quick reference
RAID Level Comparison
| RAID Level | Min Disks | Fault Tolerance | Read | Write | Usable Capacity |
|---|---|---|---|---|---|
| RAID 0 | 2 | None | Excellent | Excellent | 100% |
| RAID 1 | 2 | 1 disk | Good | Moderate | 50% |
| RAID 5 | 3 | 1 disk | Good | Moderate | 67–94% |
| RAID 6 | 4 | 2 disks | Good | Lower | 50–88% |
| RAID 10 | 4 | 1 disk per mirror | Excellent | Good | 50% |
RAID is not a backup strategy — it protects against disk failure but not against accidental deletion, ransomware, or site-level events.
Go deeper
Related to this question
Learn chapter
Storage Management (RAID, SAN, NAS)
Key term
Controller
A controller is a hardware chip or software program that manages data flow and communication between a computer's operating system and its connected devices or networks.
Key term
Check
A Check in Azure DevOps is a gating mechanism that evaluates predefined conditions before allowing a pipeline deployment to proceed to a specific environment.
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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.