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QUESTION 136
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
Answer: E
QUESTION 137
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
Answer: D
QUESTION 138
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
Answer: A
QUESTION 139
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
Answer: C
QUESTION 140
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
Answer: C
QUESTION 141
You have run out of disk space on a partition. Which of the following would be an easy way to move data to a new partition without reconfiguring the path to the data in existing applications?
A. Run ext2fs ACL.
B. Use a hard link.
C. Use a symbolic link.
D. Use the loopback device.
E. Create a block device offset.
Answer: C
QUESTION 142
You ran out of space and added a eighth disk to your SCSI-1 system. When you try to start, the system no longer boots. What is most likely the cause of this problem?
A. SCSI-1 supports only 8 devices including the adaptor.
B. SCSI-1 supports only 6 disks per adaptor.
C. There is a SCSI-ID conflict that causes that problem.
D. You forgot to set the SCSI-ID #8 for the new disk.
Answer: A
QUESTION 143
Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?
A. chmod 557 /bin/foo
B. chmod o+rwx.a+rx/bin/foo
C. chown 557 /bin/foo
D. chmod 755/bin/foo
Answer: D
QUESTION 144
You are running Linux 2.0.36 and you need to add a USB mouse to your system. Which of the following statements is true?
A. You need to rebuild the kernel.
B. You need to upgrade the kernel.
C. You need to load the USB modules for your existing modular kernel.
D. USB support is not available in Linux.
Answer: B
QUESTION 145
Which system administration command you can use to update Id.so.cache after the installation of new shared libraries?
A. Idconfig
B. Idd
C. libpath
D. newlibs
Answer: A
QUESTION 146
Which of the following is the output when the below shell script executes?
cat <<foobar Hello foobar foobar
A. The contents of the file foobar.
B. Hello.
C. No output but a file named foobar is created.
D. Hello foobar.
E. Hello foobar foobar.
Answer: D
QUESTION 147
Which of the following Debian package system commands will list all partially installed packages and suggest how to get them correctly installed?
A. dpkg -C
B. apt-get -u
C. dpkg -Dh
D. dpkg -l
E. apt-get -y
Answer: A
QUESTION 148
What information is displayed by the command cat/proc/dma?
A. whether DMA is enabled
B. which DMA channels are in use
C. which DMA mode is in use
D. general information about DMA on the machine
Answer: A
QUESTION 149
Which shell built-in command can be used to create a shortcut or pseudonym for a longer command?
A. shortcut
B. in
C. sudo
D. link
E. alias
Answer: E
QUESTION 150
Which command displays information about connected USB devices?
A. cat /proc/usb/devices
B. cat /proc/bus/usb/devices
C. cat /proc/usbdevices
D. cat /proc/usbbus/devices
E. cat /proc/hotplug/usb
Answer: B
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