LFCS Certification LFCS Boot Process and System Initialization

Question 1

What file contains the GRUB 2 configuration used at boot time on most Linux systems?

Accepted Answer

/boot/grub2/grub.cfg

Answer

/etc/grub.conf

Answer

/boot/grub/menu.lst

Answer

/etc/default/grub2

Question 2

Which command regenerates the GRUB 2 configuration file on RHEL/CentOS-based systems?

Accepted Answer

grub2-mkconfig

Answer

grub-update

Answer

update-grub

Answer

grub2-install

Question 3

Which file stores default GRUB 2 settings such as timeout and GRUB_CMDLINE_LINUX?

Accepted Answer

/etc/default/grub

Answer

/etc/grub.d/00_header

Answer

/boot/grub2/grub.cfg

Answer

/etc/grub2.cfg

Question 4

Which kernel parameter passed at the GRUB boot line boots the system into rescue mode?

Accepted Answer

systemd.unit=rescue.target

Answer

init=/bin/bash

Answer

single

Answer

emergency

Question 5

What command installs the GRUB 2 bootloader to the MBR of the disk /dev/sda?

Accepted Answer

grub2-install /dev/sda

Answer

grub-install /dev/sda1

Answer

grub2-mkconfig /dev/sda

Answer

fdisk --grub /dev/sda

Question 6

Which directory contains the scripts that grub2-mkconfig reads to generate /boot/grub2/grub.cfg?

Accepted Answer

/etc/grub.d/

Answer

/boot/grub2/scripts/

Answer

/usr/share/grub/

Answer

/etc/default/grub.d/