SK0-005 troubleshooting Practice Question
A technician is troubleshooting a server that fails to boot after a power outage. The server displays a "Non-system disk or disk error" message. Which action should the technician take first?
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
✓
Check the boot order in the BIOS configuration.
The error indicates that the server cannot find a bootable device. The most common cause after a power outage is a change in the BIOS boot order. Checking the boot order is a quick, non-invasive first step. Replacing the drive or reseating cables may be necessary if boot order is correct, but starting with boot order is best.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Run a filesystem check utility from a recovery disk.
Why it's wrong here
A filesystem check would only help if the error were due to filesystem corruption, not a missing boot device.
- ✗
Replace the hard drive with a known good one.
Why it's wrong here
Replacing the drive is drastic and should not be the first step without verifying other possibilities.
- ✗
Reseat the hard drive data and power cables.
Why it's wrong here
Reseating cables is reasonable but less likely than a boot order change after a power outage.
- ✓
Check the boot order in the BIOS configuration.
Why this is correct
Power outages can reset BIOS settings, changing the boot order. Verifying and correcting the boot order is the best first step.
Go deeper
Related to this question
Learn chapter
Operating System Installation and Configuration
Key term
BIOS
BIOS (Basic Input/Output System) is the low-level firmware stored on a motherboard chip that initializes and tests hardware components before loading the operating system.
Key term
find
The find command in Unix/Linux is a powerful utility for searching files and directories based on a wide range of criteria such as name, size, type, permissions, and modification time.
About these practice questions
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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.