SK0-005 troubleshooting Practice Question
A server in the datacenter fails to power on after a scheduled power maintenance. The facility team confirms that power is being supplied to the rack. The server's front panel LED is not illuminated. Which of the following should the administrator check 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
✓
Verify that the power cable is securely connected to the server and the PDU.
Option C is correct because, when a server shows no signs of power (no LED), the first and simplest check is to ensure the power cable is securely connected at both ends. Option A is premature; replacing the power supply should only be attempted after ruling out simple physical connections. Option B is unrelated to a no-power scenario. Option D would not cause a complete lack of power.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reseat the CPU and memory modules.
Why it's wrong here
Reseating internal components is irrelevant when there is no power indication; power issues should be ruled out first.
- ✓
Verify that the power cable is securely connected to the server and the PDU.
Why this is correct
Checking physical power connections is the most logical first step in a no-power situation, as cables can become loose during maintenance activities.
- ✗
Replace the power supply unit.
Why it's wrong here
Prematurely replacing the PSU without first checking basic connections is inefficient and may not resolve the issue if the problem is a loose cable.
- ✗
Update the server's BIOS firmware.
Why it's wrong here
BIOS firmware updates do not prevent a server from receiving power and are not a typical step for a no-power condition.
Go deeper
Related to this question
Learn chapter
Server Maintenance: Patches, Monitoring, and Backups
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.
Key term
PSU
A PSU converts AC mains power into regulated DC voltages required by computer components, ensuring stable operation.
About these practice questions
One of 185 original SK0-005 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
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.