hardMultiple ChoiceObjective-mapped
XK0-006 Practice Question: A Linux server that hosts a critical database…
A Linux server that hosts a critical database application has been experiencing occasional kernel panics. The administrator wants to ensure the system automatically reboots after a panic and logs the crash dump. Which sysctl parameter should be set?
⚠ Common exam trap
CompTIA often tests the distinction between parameters that cause a panic (`panic_on_oops`, `panic_on_warn`) and the parameter that controls the reboot delay after a panic (`kernel.panic`), leading candidates to confuse the cause with the recovery action.
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
✓
kernel.panic = 10
Setting `kernel.panic = 10` instructs the Linux kernel to wait 10 seconds after a kernel panic before automatically rebooting. This ensures the system recovers without manual intervention, and combined with a configured crash dump mechanism (e.g., kdump), the crash dump is captured before the reboot.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
kernel.panic_on_warn = 10
Why it's wrong here
Controls panic on warnings.
- ✗
kernel.panic_on_oops = 10
Why it's wrong here
Controls oops, not panic.
- ✗
kernel.panic_print = 10
Why it's wrong here
Controls debug printing.
- ✓
kernel.panic = 10
Why this is correct
Sets seconds before reboot after panic.
Go deeper
Related to this question
Learn chapter
Linux Fundamentals and History
Key term
Kernel
The kernel is the core program of an operating system that manages hardware resources and provides essential services for all other software to run.
Key term
Linux
Linux is an open-source operating system that manages computer hardware and software, widely used in servers, desktops, and embedded systems.
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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.