hardMultiple SelectObjective-mapped
XK0-006 A server crashed with a kernel panic Practice Question
A server crashed with a kernel panic. After reboot, the administrator wants to analyze the crash dump. Which THREE actions should be taken to ensure a valid core dump is captured and accessible? (Choose THREE.)
⚠ Common exam trap
Many candidates confuse post-crash verification (checking for a vmcore file) with pre-crash configuration steps, or they mistakenly think debuginfo packages are required for capturing the dump rather than for later analysis.
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
✓
Configure a dump target in /etc/kdump.conf.
/etc/kdump.conf specifies where the crash dump should be saved (e.g., to a local disk, NFS, or SSH target). Without a configured dump target, the kdump mechanism does not know where to write the vmcore file, making the dump inaccessible after a kernel panic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure a dump target in /etc/kdump.conf.
Why this is correct
The dump target (e.g., a partition or NFS mount) must be defined to write the core dump.
- ✓
Enable and start the kdump service.
Why this is correct
The kdump service orchestrates the dump capture on crash.
- ✓
Set crashkernel=auto in the boot loader.
Why this is correct
Reserves memory for the crash kernel.
- ✗
Install kernel-debuginfo packages.
Why it's wrong here
Debug symbols are needed for analysis but not for capturing the dump.
- ✗
Ensure /var/crash has a vmcore file.
Why it's wrong here
The vmcore is the result, not a prerequisite; it will appear after a crash.
Go deeper
Related to this question
Learn chapter
File Permissions and Ownership
Key term
SSH
SSH (Secure Shell) is a cryptographic network protocol that provides secure, encrypted communication and remote administration between two devices over an unsecured network.
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.
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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.