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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/
Which is the main configuration file for the SystemV init process? (Specify the full name of the file, including path.)
Which of the following commands restores only those files containing lpi in their name from the archive lpifiles.tar.gz?
A. tar xvzf lpifiles.tar.gz --wildcards ‘*lpi*’
B. tar xvzwf lpifiles.tar.gz ‘*lpi*’
C. tar -xvfz lpifiles.tar.gz --deep ‘*lpi*’
D. tar -xvzf lpifiles.tar.gz --subdirs ‘*lpi*’
E. tar xvzf lpifiles.tar.gz --globbing ‘*lpi*’
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
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/
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
In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?
A. sa1
B. sarmon
C. sarec
D. sadf
E. sarcron
Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0?
A. iw phy pyh0 info
B. iw dev wlan0 info
C. iw dev wlan0 show
D. iw phy wlan0 show
E. iw phy0 show
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
Which of the following init systems comes along with an own UEFI boot loader?
A. systemd
B. SysVinit
C. Upstart
D. OpenRC
E. launchd
Which of the following commands adds a static IPv6 address to the network interface eth0?
A. ip add addr 2001:db8::1337/64 dev eth0
B. ip -6 add addr 2001:db8::1337/64 dev eth0
C. ip addr add 2001:db8::1337/64 dev eth0
D. ip -6 addr add new 2001:db8::1337/64 dev eth0
E. ip addr add -6 2001:db8::1337/64 dev eth0
What command is used to send messages to all users currently logged in? (Specify ONLY the command without any path or parameters.)
In the output of sar –b, what does tps stand for?
A. Terrabyte per second
B. Traffic per second
C. Transfers per second
D. Total data per second
E. Terrabit per second
Which of the following commands erases the contents of the /dev/sdb3 partition?
A. rm /dev/sdb3
B. dd if=/dev/zero of=/dev/sdb3
C. dd of=/dev/zero if=/dev/sdb3
D. umount /dev/sdb3
Which of the following commands lists IPv4 addresses and MAC addresses of network nodes that the local system has seen on its directly connected IP networks?
A. arp
B. ifconfig
C. ipadm
D. iwlist