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XK0-006 Practice Question: Which THREE of the following are valid methods to…
Which THREE of the following are valid methods to troubleshoot a service that fails to start?
⚠ Common exam trap
Many candidates confuse general system health commands (like `df -h`) with service-specific troubleshooting methods, or they think `systemctl daemon-reload` is a diagnostic step when it only reloads configuration without providing error details.
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
✓
Run the service executable manually from the command line to see error output.
Running the service executable manually from the command line often reveals stderr output, error codes, or missing configuration details that are suppressed when the service is started by systemd. This direct execution bypasses the service manager's logging and can show immediate, unfiltered error messages that help pinpoint the failure reason.
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 the service executable manually from the command line to see error output.
Why this is correct
Manual execution often gives direct error messages.
- ✓
Review the service logs using journalctl.
Why this is correct
Logs provide specific error messages.
- ✓
Check if the service's required dependencies are installed and running.
Why this is correct
Missing dependencies can prevent a service from starting.
- ✗
Run df -h to check disk space.
Why it's wrong here
While low disk space can cause issues, it's not a specific step for service startup failure.
- ✗
Reload the systemd daemon with systemctl daemon-reload.
Why it's wrong here
Daemon-reload is used after modifying unit files, not for troubleshooting failures.
Go deeper
Related to this question
Learn chapter
Networking Fundamentals and Configuration
Key term
systemd
systemd is a system and service manager for Linux operating systems that initializes and manages processes, services, and system resources after the kernel boots.
Key term
Service
A service is a software component or system that performs a specific function and is available to be used by other programs or users over a network.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 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 XK0-006 exam.