LPI 201-450 practice test

Question 1

Which of the following commands displays the physical path of the kernel module named dummy?

• A. modprobe –i dummy
• B. modinfo –n dummy
• C. modpath –v dummy
• D. depmod –n dummy
• E. modshow –p dummy

Question 2

After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

• A. To initramfs is independent of the kernel and should not be modified unless the hardware configuration of the machine has changed
• B. Since the initramfs contains kernel modules, a new initramfs must be built for the new kernel
• C. During the compilation of the Linux kernel, a new initramfs is built automatically. The new initramfs only needs to be installed
• D. The system should be restarted since the initramfs reconfigures itself for the new kernel during the startup of the system

Question 3

After the downloading patch-4.6.4.xz from http://kernel.org, what are the next steps to prepare the
build of a version 4.6.4 Linux kernel? (Choose two.)

• A. Uncompress the file and move the resulting directory to /usr/src/linux
• B. Apply the patch file to the kernel source directory containing kernel version 4.6.0
• C. Apply the patch file to the kernel source directory containing kernel version 4.6.3
• D. Uncompress the file using xz to get the uncompressed patch file
• E. Use patch to apply the uncompressed patch file to the source directory of any previous kernel version

Question 4

In which directory tree are files modified when changing kernel parameters using the command
sysctl?

• A. /sys/kernel/
• B. /proc/kernel/
• C. /proc/sys/
• D. /lib/sys/
• E. /sys/proc/

Question 5

Which of the following is a userspace application used to modify EFI entries on a Linux system?

• A. efieditor
• B. configefi
• C. efimanager
• D. efiboottmgr
• E. efibootedit

Question 6

What is the purpose of an initramfs during the Linux system start?

• A. It loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel
• B. It moves the kernel from normal system memory to initram memory to speed up kernel access
• C. It copies the root file system’s content to RAM to speed up the system and reduce writes to disk
• D. It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk

Question 7

Fill in the blank:
Which is the main configuration file for the SystemV init process? (Specify the full name of the file,
including path.)

Question 8

A Linux server running systemd booted to rescue.target for maintenance. Which commands are used
to restore the server to its usual target? (Choose two.)

• A. telinit 0
• B. systemctl default
• C. sync
• D. systemctl emergency
• E. systemctl reboot

Question 9

Fill in the blank:
Which directory contains system-specific systemd unit files? (Specify the full path to the directory.)

Question 10

Which command is used to install a GRUB boot loader into the master boot record?

• A. grub-install
• B. grub-mkconfig
• C. grub-install-mbr
• D. grub-glue-mbr
• E. grub-mbr-setup

Question 11

What effect does the f option to the update-rc.d command have on files in the /etc/rcX.d/ and
/etc/init.d/ directories?

• A. It will force the removal of the symlinks in /etc/rcX.d/ even when the links are read only
• B. It will remove both the symlinks in /etc/rcX.d/ and the init script in /etc/init.d/
• C. It will remove the init script in /etc/init.d/ and the symlinks in /etc/rcX.d/ and update the package information of installed files
• D. It will force the removal of symlinks in /etc/rcX.d/ even if the corresponding init script still exists in /etc/init.d/

Question 12

Which of the following init systems comes along with an own UEFI boot loader?

• A. systemd
• B. SysVinit
• C. Upstart
• D. OpenRC
• E. launchd

Question 13

Which sub command to crypsetup shows information about an encrypted LUKS partition?

• A. luksDump
• B. luksInfo
• C. luksDebug
• D. luksLS
• E. luksShow

Question 14

Fill in the blank:
What command ensures that the file systems are written to disk after a lot of write operations?
(Specify ONLY the command without any path or parameters.)

Question 15

What is the purpose of a system mount unit?

• A. It is used by the command systemd-mount and allows users to mount partitions to mount points of their choice
• B. It is used only to mount network file systems to local mount points. It cannot be used for local media
• C. It is created by the command systemd-fstab-generator to integrate entries from /etc/fstab into the system boot process
• D. It is used by the command mount when using system to mount and unmount file systems