Changing the way you learn

Question 1

Question

What kind of hardware is represented by the device name /dev/hda?

Answer

Sound Card
Modem
IDE Hard Drive
SCSI Hard Drive
Sata Hard Drive

Question 2

Question

What file should you query to determine whether there is an IRQ conflict on your system?

Answer

/proc/ioports
/proc/interrupts
/proc/cpuinfo
/proc/meminfo
/proc/irqstatus

Question 3

Question

Which of the following are arguments you can pass to the kernel at boot time to tell it to start in runlevel 1 (single-user mode)? (two answers)

Answer

one
1
safe
single
user

Question 4

Question

Which process is referred to as the "mother of all processes" and always has PID 1?

Answer

mother
admin
init
administrator
bios

Question 5

Question

Which logfile should you examine for information about the hardware that the kernel initialized at boot time?

Answer

/var/log/syslog
/var/log/messages
/var/log/lastlog
/var/log/wtmp
/var/log/cron

Question 6

Question

If you want to change your system´s default boot device from the hard drive to the CD-ROM drive, where would you make that configuration change?

Answer

The file /boot/grub/grub.conf
the file /etc/lilo.conf
An argument passed to the kernel at boot time
The BIOS
The file /etc/inittab

Question 7

Question

What command line would reboot a running Linux system immediately, forcing an fsck of every drive on reboot?

Answer

/sbin/shutdown -r -F now
/sbin/shutdown -h -F now
/sbin/shutdown
/sbin/shutdown -r -f now
/sbin/shutdown -t -f

Question 8

Question

Which of the following are valid ways to interactively switch a running system to a runlevel 3?

Answer

chrunlevel 3
runlevel 3
init 3
telnit 3
init -3

Question 9

Question

Which command is used to display the current mounted partitions, their mount points, and the available free space on each?

Answer

du
df
fdisk
fsck
mount

Question 10

Question

Which partition is designed to hold data that changes often and is writable by all users?

Answer

/var
/home
/tmp
/opt
/sys

Question 11

Question

What does MBR stand for?

Answer

Main Booting Runlevel
Main Block Record
Master Boot Record
Master Block Record
Master Boot Resource

Question 12

Question

Which of the following lines in /boot/grub/grub.conf would tell GRUB to use the first partition of the first hard drive as the root partition?

Answer

root(hd0,0)
boot(hd0,0)
root(hd1,1)
boot(hd1,1)
root(hd1,0)

Question 13

Question

What file contains a list of directories that are searched to find shared libraries when a binary program is executed?

Answer

/etc/loader.conf
/etc/library/conf
/etc/ld.so.cache
/etc/ld.so.conf
/etc/ld.conf

Question 14

Question

For distribucions that use Debian package management system, what command will download and update all installed packages to the latest avarilable version?

Answer

apt-get install
apt-cache update
apt-get update
apt-cache install
dpkg -i

Question 15

Question

If I download a.deb package (package.deb) and wish to install it, what´s the best command to use?

Answer

dpkg -i package.deb
apt-get install package.deb
apt install package.deb
dpkg package.deb
None of the above

Question 16

Question

For distributions that use the Red Hat package management system, what command will list all packages currently installed?

Answer

rpm -qa
rpm -i
rpm -Uvh
rpm -list
rpm -all

Question 17

Question

For distributions that use the Red Hat package management system, what command will download and update all installed packages to the latest available version?

Answer

yum update
yum install
yum config
yum list available
yum download

Question 18

Question

What option(s) to rpm will instruct rpm to run a verification check on all packages installed on the system? (two answers)

Answer

rpm -verify -all
rpm -Va
rpm -qa
rpm -check
rpm -c

Question 19

Question

What command is used to display a list of directories the shell will search in to find a command that has been entered?

Answer

show $MYPATH
echo $PATH
echo $MYPATH
setenv
set $PATH

Question 20

Question

Which file(s) does the bash shell read al login to set environment variables?

Answer

/etc/bashrc
~/.bashrc
~/.bash_profile
All of the above
None of the above

Question 21

Question

What commands can be used to view a list of the last commands typed into the shell?

Answer

history
<Ctrl-R>
<up arrow>
All of the above
None of the above

Question 22

Question

Which of the following command(s) will display the first 5 lines of the file /etc/passwd? (two answers)

Answer

cat -5 /etc/passwd
more -5 /etc/passwd
head -5 /etc/passwd
cat /etc/passwd | head -5
cat /etc/passwd | more -5

Question 23

Question

What command(s) can be used to copy data to and from raw devices, bypassing the filesystem? (two answers)

Answer

Question 24

Question

What option can be passed to /bin/ls to display every file in a directory that ends in .txt?

Answer

ls +.txt
ls *.txt
ls * txt
ls [txt]
ls *txt*

Question 25

Question

What option can be passed to /bin/ls to display every file that starts with the letters a, b, or c?

Answer

ls abc*
ls a*b*c*
ls ^abc
ls [abc]+
ls [abc]*

Question 26

Question

Which file extensions are common for files or directories that have been concatenated with tar and then compressed with bzip2?

Answer

.tar.bz2
.tbz2
.tbz
All of the above
None of the above

Question 27

Question

What device should you redirect output to if you do not want to see it or save it?

Answer

/dev/zero
/dev/nothing
/dev/empty
/dev/null
/dev/bitbucket

Question 28

Question

Which of the following commands would list the contents of the directory /tmp, store that list in the file /root/tmp.txt, and display the list a screen at a time?

Answer

ls -l /tmp | tee /root/tmp.txt | more
ls -l /tmp | xargs /root/tmp.txt | more
ls -l /tmp | more | tee /root/tmp.txt
tee /root/tmp.txt | ls -l /tmp | more
more /tmp | tee /root/tmp.txt

Question 29

Question

What character is used after a command line to indicate that the command should run in tha background and return shell control to the user?

Answer

Question 30

Question

What command in used at the beginning of a command line to detach the process from a terminal, allowing in to continue running after the user has logged out?

Answer

hangup
detach
nohup
background
bg

Question 31

Question

What command will display a full-screen, updated list of all running processes?

Answer

kill
ps
list
top
free

Question 32

Question

If a running process is not responding to a standard terminate signal from the /bin/kill command, what option can you pass to force the process to terminate immediately?

Answer

kill -1
kill --HUP
kill --stop
kill -9
kill --now

Question 33

Question

What command can be used to kill processes by name, rather than process ID?

Answer

killproc
killname
killall
kill -name
killpath

Question 34

Question

Which command line would start the program /usr/bin/top with the highest priority possible?

Answer

nice --20 /usr/bin/top
nice 20 /usr/bin/top
nice 19 /usr/bin/top
nice -20 /usr/bin/top
None of the above

Question 35

Question

Which command is used to modify the priority of a process already running?

Answer

nice
renice
priority
chage
ps

Question 36

Question

Which command(s) would display every line in /tmp/file.txt that begins with the letter h and ends with the letter t?

Answer

grep "^h.+t$" /tmp/file.txt
grep -E "^h.+t$" /tmp/file.txt
grep -E "$h.+t^" /tmp/file.txt
grep -E "$ht^" /tmp/file.txt
grep -E "^h. *t$" /tmp/file.txt

Question 37

Question

In the vi editor, what command sequence given in command mode will make a copy of the current line?

Answer

yyp
cp
yp
ccp
None of the above

Question 38

Question

In the vi editor, what command sequence given in command mode will save the current file and quit the editor?

Answer

:qw
:wq
:WQ
:pq
None of the above

Question 39

Question

In the vi editor, what the command sequence given in command mode will quit a file whithout saving, even if changes have been made?

Answer

Question 40

Question

What command will create an ext3 partition on the first partition of the first SCSI hard drive?

Answer

mkfs -t ext3 /dev/sda1
fdisk -t ext3 /dev/sda1
fsck -t ext3 /dev/sda1
mkfs -s ext3 /dev/hda1
mkfs -t ext3 /dev/hda1

Question 41

Question

What command is used to convert an existing ext2 partition (/dev/sda1) to an ext3 (journaled) partition?

Answer

tune2fs -j /dev/sda1
dumpe2fs -j /dev/sda1
fsck -j /dev/sda1
mkfs.ext2 -j /dev/sda1
None of the above

Question 42

Question

What command is used to display the number of free inodes on an ext2 or ext3 partition?

Answer

tune2fs
dumpe2fs
showe2fs
fsck
fdisk

Question 43

Question

Which file defines what partitions are mounted at boot time?

Answer

/etc/partitions
/etc/mount
/etc/mtab
/etc/fstab
/etc/filesystems

Question 44

Question

Which command will mount all partitions of type nfs defined in /etc/fstab?

Answer

mount -a -t nfs
mount -a nfs -t
mount -nfs
mountall -nfs
None of the above

Question 45

Question

If you would like to give a normal (nonroot) user the ability to mount a device, what option should you define for that device in /etc/fstab?

Answer

mountable
noroot
user
ok
mount

Question 46

Question

Which option to chmod would assign read/white permission to the file owner, read-only permission to the group owner, and read-only permission to the group owner, and read-only permission to everyone else?

Answer

chmod 644 file.txt
chmod 755 file.txt
chmod 466 file.txt
chmod 777 file.txt
None of the above

Question 47

Question

Which option to umask would set my default file permissions such that files are created with these permissions: user has read/write, group has read/write, and everyone else has read only?

Answer

umask 002
umask 022
umask 200
umask 220
umask 775

Question 48

Question

Which command can be used to quickly tell you if an executable command is in any directory defined in your $PATH enviromment variable?

Answer

find
locate
which
who
what

Question 49

Question

Which directory, according to the Filesystem Hierarchy Standard, is designed to hold essential system binaries?

Answer

/sbin
/bin
/usr/bin
/opt/bin
/usr/local/bin

Question 50

Question

According to the Filesystem Hierarchy Standard, what directory (or directories) must hold the system kernel? (two answer)

Answer

/boot
/
/opt
/sbin
/kernel

Question 51

Question

What command is used to maintain the filesystem index that tha command /usr/bin/locate searches?

Answer

update
updatelocate
locate -update
updatedb
update-db

Question 52

Question

Which one of the following is an accurate statement regarding this regular expression? [^1-8A-Za-z]

Answer

It matches all letters and numbers
It matches all letters and numbers except 9
It matches all letters and numbers except 9 and 0, but only at the beginning of a line
It matches 9, 0 , and other nonletter and nonnumber characters
It matches characters other nonletters or numbers

Question 53

Question

Which one of the following is true about the LILO loader?

Answer

It can start the Windows NT Loader
It is started using the lilo command
It is the only boot loader available for Linux
It can start multiple Linux kernels, but no foreign operating systems.
It resides entirely in the boot sector

Question 54

Question

If you have created your own script that you wish to run every time your system boots, but it must run after all other processes have completed, where is the best place to reference it? (Select two answers)

Answer

/etc/initttad
/etc/rc.d/rc.sysinit
A symlink beginning with S in /etc/rc.d/rc5.d/
/etc/rc.d/rc.local
A symlink beginning with K in /etc/rc.d/rc5.d/

Question 55

Question

If my current directory is /opt an I wish to run the command /opt/runme, what command(s) could I type (assumming /opt is not in your $PATH)? (Select two answers)

Answer

/opt/runme
./runme
runme
opt/runme
~/runme

Question 56

Question

Which of the following commands will redirect the standard output of /bin/ls to /dev/null, while allowing standard error to display on the screen? (Select two answer)

Answer

/bin/ls > /dev/null 2> /dev/screen
/bin/ls 1>/dev/null
/bin/ls > /dev/null
/bin/ls > /dev/null 2>&1
/bin/ls 2> /dev/null 1>&2

Question 57

Question

Which commands can be used to perform a search and replace on a file or a text stream? (two answers)

Answer

Question 58

Question

Which command(s) would display every line in /tmp/file.txt that contains at least one letter of the alphabet? (Select two answers)

Answer

grep "[a-zA-Z]" /tmp/file.txt
grep "[:alpha:]" /tmp/file.txt
grep "[:letters:]" /tmp/file.txt
grep "(a-zA-Z)" /tmp/file.txt
None of the above

Question 59

Question

Which of the following are examples of journaling filesystems? (Select three answers)

Answer

ext2
ext3
xfs
reiserfs
vfat

Question 60

Question

Which Linux command can be used to repair improperly shutdown, or otherwise potentially corrupt partitions?

Answer

chkdsk
scandisk
fsck
fdisk
df -h

	Created by Carlos Alberto Jara Alva almost 7 years ago

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