linux foundation lfcs practice test

Which of the following commands brings a system running SysV init into a state in which it is safe to
perform maintenance tasks? (Choose TWO correct answers.)

• A. shutdown -R 1 now
• B. shutdown -single now
• C. init 1
• D. telinit 1
• E. runlevel 1

What is the first program that is usually started, at boot time, by the Linux kernel when using SysV
init?

• A. /lib/init.so
• B. /sbin/init
• C. /etc/rc.d/rcinit
• D. /proc/sys/kernel/init
• E. /boot/init

Which command will display messages from the kernel that were output during the normal boot
sequence?

Which of the following commands will write a message to the terminals of all logged in users?

• A. bcast
• B. mesg
• C. print
• D. wall
• E. yell

Which of the following kernel parameters instructs the kernel to suppress most boot messages?

• A. silent
• B. verbose=0
• C. nomesg
• D. quiet

Which of the following options for the kernel's command line changes the systemd boot target to
rescue.target instead of the default target?

• A. systemd.target=rescue.target
• B. systemd.runlevel=rescue.target
• C. systemd.service=rescue.target
• D. systemd.default=rescue.target
• E. systemd.unit=rescue.target

After modifying GNU GRUB's configuration file, which command must be run for the changes to take
effect?

• A. kill -HUP $(pidof grub)
• B. grub-install
• C. grub
• D. No action is required

Which of the following commands is used to update the list of available packages when using dpkg
based package management?

• A. apt-get update
• B. apt-get upgrade
• C. apt-cache update
• D. apt-get refresh
• E. apt-cache upgrade

Which of the following commands lists the dependencies of a given dpkg package?

• A. apt-cache depends-on package
• B. apt-cache dependencies package
• C. apt-cache depends package
• D. apt-cache requires package

Which of the following options is used in a GRUB Legacy configuration file to define the amount of
time that the GRUB menu will be shown to the user?

• A. hidemenu
• B. splash
• C. timeout
• D. showmenu