A server fails to boot with a kernel panic. The administrator suspects a corrupted initramfs. They need to recover the system and rebuild the initramfs. Which sequence of actions should be performed?

Run `update-initramfs -u` from a recovery shell without chrooting.

Use `grub-mkconfig -o /boot/grub/grub.cfg` to regenerate the bootloader configuration.

Add `break=top` to the kernel command line and boot normally.

Boot from a rescue CD, chroot into the installed system, and run `mkinitramfs -o /boot/initrd.img-$(uname -r) $(uname -r)`.

Which of the following is a common cause of a kernel panic?

A user running the 'top' command

A misconfigured sysctl parameter

A hardware failure, such as a faulty RAM module

LPI LPIC-2:Linux Engineer (201-450)

Domain 2Objective 3

201.3 Kernel Runtime Management and Troubleshooting (weight: 4) LPIC-2 Practice Questions (Page 4)

Part of the Topic 201: Linux Kernel domain, which makes up ~9% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~3–5 in this domain), expect 1–2 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

8concepts

Questions 16–20

16application · medium
An administrator needs to set a kernel module option for a module that is loaded by the kernel at boot. The option should be applied every time the module is loaded. Which file should be used?
Select an answer first
17application · medium
A system has a PCIe NVMe SSD that is not being detected. The administrator runs `lspci` and sees the device, but no driver is loaded. Which command should be used to find the correct kernel module for the device?
Select an answer first
18expert · hard
A server fails to boot with a kernel panic. The administrator suspects a corrupted initramfs. They need to recover the system and rebuild the initramfs. Which sequence of actions should be performed?
Select an answer first
19foundation · easy
Which command displays the kernel ring buffer messages, which include boot messages and hardware detection logs?
Select an answer first
20foundation · easy
Which of the following is a common cause of a kernel panic?
Select an answer first

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201.3 Kernel Runtime Management and Troubleshooting (weight: 4) LPIC-2 Practice Questions (Page 4)

Questions 16–20

An administrator needs to set a kernel module option for a module that is loaded by the kernel at boot. The option should be applied every time the module is loaded. Which file should be used?

A system has a PCIe NVMe SSD that is not being detected. The administrator runs `lspci` and sees the device, but no driver is loaded. Which command should be used to find the correct kernel module for the device?

A server fails to boot with a kernel panic. The administrator suspects a corrupted initramfs. They need to recover the system and rebuild the initramfs. Which sequence of actions should be performed?

Which command displays the kernel ring buffer messages, which include boot messages and hardware detection logs?

Which of the following is a common cause of a kernel panic?

Keep studying — Topic 201: Linux Kernel