When given the following command line. echo "foo bar" | tee bar | cat Which of the following output is created?
cat
foo bar
tee bar
bar
foo
Which of the following files, located in the user home directory, is used to store the Bash history?
.bash_history
.bash_histfile
.history
.bashrc_history
.history_bash
What command will generate a list of user names from /etc/passwd along with their login shell?
column -s : 1,7 /etc/passwd
chop -c 1,7 /etc/passwd
colrm 1,7 /etc/passwd
cut -d: -f1,7 /etc/passwd
Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?
i (lowercase)
P (uppercase)
p (lowercase)
U (uppercase)
u (lowercase)
What is the default action of the split command on an input file?
It will break the file into new files of 1,024 byte pieces each
It will break the file into new files of 1,000 line pieces each
It will break the file into new files of 1,024 kilobyte pieces each
It will break the file into new files that are no morethan 5% of the size of the original file
Which of the following commands lists the dependencies of a given dpkg package?
apt-cache depends-onpackage
apt-cache dependencies package
apt-cache depends package
apt-cache requires package
Which option to the yum command will update the entire system? (Specify ONLY the option name without any additional parameters)
Mastered
Not Mastered
Which of the following environment variables overrides or extends the list of directories holding shared libraries?
LD_LOAD_PATH
LD_LIB_PATH
LD_LIBRARY_PATH
LD_SHARE_PATH
LD_RUN_PATH
Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)
uptime
up
top
uname -u
time –up
What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?
9
19
49
99
Regarding the command: nice -5 /usr/bin/prog Which of the following statements is correct?
/usr/bin/prog is executed with a nice level of -5
/usr/bin/prog is executed with a nice level of 5
/usr/bin/prog is executed with a priority of -5
/usr/bin/prog is executed with a priority of 5
When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?
-10
0
10
20
Which of the following commands kills the process with the PID 123 but allows the process to "clean up" before exiting?
kill -PIPE 123
kill -KILL 123
kill -STOP 123
kill -TERM 123
What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)
Entries for all possible devices get created on boot even if those devices are not connected
Additional rules for udev can be created by adding them to /etc/udev/rules.d/
When using udev, it is not possible to create block orcharacter devices in /dev/ using mknod
The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup
The content of /dev/ is stored in /etc/udev/dev and is restored during system startup
What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)
To create RAID 9 arrays
To dynamically change the size of logical volumes
To encrypt logical volumes
To create snapshots
To dynamically create or delete logical volumes
What is the first program that is usually started, at boot time, by the Linux kernel when using SysV init?
/lib/init.so
/sbin/init
/etc/rc.d/rcinit
/proc/sys/kernel/init
/boot/init
During a system boot cycle, what is the program that is run after the BIOS completes its tasks?
The bootloader
The inetd program
The init program
The kernel
You are having some trouble with a disk partition and you need to do maintenance on this partition but your users home directories are on it and several are logged in. Which command would disconnect the users and allow you to safely execute maintenance tasks?
telinit 1
shutdown -r now
killall -9 inetd
/bin/netstop --maint
/etc/rc.d/init.d/network stop
Which of the following information is stored within the BIOS? (Choose TWO correct answers.)
Boot device order
Linux kernel version
Timezone
Hardware configuration
the system's hostname
The system is having trouble and the engineer wants to bypass the usual /sbin/init start up and run /bin/sh. What is the usual way to pass this change to the kernel from your boot loader?
Start in runlevel 1
Pass init=/bin/sh on the kernel parameter line
Pass /bin/sh on the kernel parameter line
Pass start=/bin/sh on the kernel parameter line
Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)
shutdown -r "rebooting"
telinit 6
telinit 0
shutdown -k now "rebooting"
Which command displays the contents of the Kernel Ring Buffer on the command line? (Provide only the command name without any options or path information)
No mastered
Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target?
systemd.target=rescue.target
systemd.runlevel=rescue.target
systemd.service=rescue.target
systemd.default=rescue.target
systemd.unit=rescue.target
After modifying GNU GRUB's configuration file, which command must be run for the changes to take effect?
kill -HUP $(pidof grub)
grub-install
grub
No action is required
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?
hidemenu
splash
timeout
showmenu
Which of the following shell redirections will write standard output and standard error output to a file named filename?
2>&1 >filename
>filename 2>&1
1>&2>filename
>>filename
1&2>filename
Which of the following commands is used to modify quota settings? (Choose two.)
editquota
setquota
edquota
quotaedit
quotaset
What does the command mount -a do?
It mounts all available filesystems onto the current directory
It shows all mounted filesystems
It mounts all user mountable filesystems for the current user
It mounts all filesystems listed in /etc/fstab which have the option auto set
It mounts all filesystems listed in /etc/fstab which have the option no auto set
Which of the following statements describes a difference between GNU GRUB Legacy and GRUB 2?
GRUB 2 no longer requires a configuration file
Partition numbers start at 0 in GRUB Legacy and1in GRUB 2
grub-mk config only works with GRUB Legacy if the--version 1option is used
The configuration filemenu.lst(andgrub.conf) have been replaced withgrub.config
What do the permissions -rwSr-xr-x mean for a binary file when it is executed as a command?
The command is SetUID and it will be executed with the effective rights of the owner
The command will be executed with the effective rights of the group instead of the owner
The execute flag is not set for the owner
Therefore the SetUID flag is ignored
The command will be executed with the effective rights of the owner and group
What is the purpose of the Filesystem Hierarchy Standard?
It is a security model used to ensure files are organized according to their permissions and accessibility
It provides unified tools to create, maintain and manage multiple filesystems in a common way
It defines a common internal structure of inodes for all compliant filesystems
It is a distribution neutral description of locations of files and directories
Which of the following commands set the sticky bit for the directory /tmp? (Choose TWO correct answers.)
chmod +s /tmp
chmod +t /tmp
chmod 1775 /tmp
chmod 4775 /tmp
chmod 2775 /tmp
