101-500 Lpi Free Online Dumps

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Pdfprep2021-01-04T07:18:05+00:00

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1. What is the purpose of the xargs command?

It passes arguments to an X server.

It reads standard input (STDIN) and builds up command lines to execute.

It helps shellscripts take variable argument lists.

It asks a question, graphically, and returns the answer to the shell.

It allows users to specify long options for commands that normally only accept short options.

2. Which of the following is a limitation of the cut command?

Thecutcommand can only select output by field position.

Thecutcommand cannot reorder fields.

Thecutcommand only works on ASCIItext.

Thecutcommand cannot use different input and output delimiters.

3. Which of the following are filesystems which can be used on Linux root partitions? (Choose two.)

NTFS

ext3

XFS

VFAT

swap

4. Which of the following pieces of information of an existing file is changed when a hard link pointing to that file is created?

File size

Modify timestamp

Link count

Inode number

Permissions

5. 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

6. Topic 5, New Questions Mix

What is true regarding the configuration of yum? (Choose two.)

Changes to the repository configuration become active after running yum confupdate

Changes to the yum configuration become active after restarting the yumd service

The configuration of package repositories can be divided into multiple files

Repository configurations can include variables such as $basearch or $releasever

In case /etc/yum.repos.d/ contains files, /etc/yum.conf is ignored

7. Which wildcards will match the following filenames? (Choose two.)

ttyS0

ttyS1

ttyS2

ttyS[1-5]

tty?[0-5]

tty*2

tty[A-Z][012]

tty[Ss][02]

8. CORRECT TEXT

Which command displays the current disk space usage for all mounted file systems? (Specify ONLY the command without any path or parameters.)

9. What is true regarding UEFI firmware? (Choose two.)

It can read and interpret partition tables

It can use and read certain file systems

It stores its entire configuration on the /boot/ partition

It is stored in a special area within the GPT metadata

It is loaded from a fixed boot disk position

10. Which of the following commands installs all packages with a name ending with the string foo?

zypper get “*foo”

zypper update “foo?”

zypper force “foo*”

zypper install “*foo”

zypper add “.*foo”

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11. CORRECT TEXT

Which program runs a command in specific intervals and refreshes the display of the program’s output? (Specify ONLY the command without any path or parameters.)

12. When redirecting the output of find to the xargs command, what option to find is useful if the filenames contain spaces?

Crep-space

-printnul

-nospace

Cignore-space

Cprint0

13. Consider the following output from the command ls Ci:

How would a new file named c.txt be created with the same inode number as a.txt (Inode 525385)?

ln Ch a.txt c.txt

ln c.txt a.txt

ln a.txt c.txt

ln Cf c.txt a.txt

ln Ci 525385 c.txt

14. What is contained on the EFI System Partition?

The Linux root file system

The first stage boot loader

The default swap space file

The Linux default shell binaries

The user home directories

15. Which of the following files, located in a user’s home directory, contains the Bash history?

.bashrc_history

.bash_histfile

.history

.bash_history

.history_bash

16. Given a log file loga.log with timestamps of the format DD/MM/YYYY:hh:mm:ss, which command filters out all log entries in the time period between 8:00 am and 8:59 am?

grep CE ‘:08:[09]+:[09]+’ loga.log

grep CE ‘:08:[00]+’ loga.log

grep CE loga.log ‘:08:[0-9]+:[0-9]+’

grep loga.log ‘:08:[0-9]:[0-9]’

grep CE ‘:08:[0-9]+:[0-9]+’ loga.log

17. Which of the following are valid stream redirection operators within Bash? (Choose two.)

>>>

2>&1

18. Which of the following commands changes all CR-LF line breaks in the text file userlist.txt to Linux standard LF line breaks and stores the result in newlist.txt?

tr Cd ‘r’ < userlist.txt > newlist.txt

tr Cc ‘
r’ ‘’ <newlist.txt> userlist.txt

tr ‘r
’ ‘’ <userlist.txt> newlist.txt

tr ‘r’ ‘
’ userlist.txt newlist.txt

tr Cs ‘/^M/^J/’ userlist.txt newlist.txt

19. Which of the following vi commands deletes two lines, the current and the following line?

2dd

dd2

de12

20. Which umask value ensures that new directories can be read, written and listed by their owning user, read and listed by their owning group and are not accessible at all for everyone else?

0750

0027

0036

7640

0029

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21. Which of the following commands displays the output of the foo command on the screen and also writes it to a file called /tmp/foodata?

foo | less /tmp/foodata

foo | cp /tmp/foodata

foo > /tmp/foodata

foo | tee /tmp/foodata

foo > stdout >> /tmp/foodata

22. Which of the following statements are true about the boot sequence of a PC using a BIOS? (Choose two.)

Some parts of the boot process can be configured from the BIOS

Linux does not require the assistance of the BIOS to boot a computer

The BIOS boot process starts only if secondary storage, such as the hard disk, is functional

The BIOS initiates the boot process after turning the computer on

The BIOS is started by loading hardware drivers from secondary storage, such as the hard disk

23. What does the command mount --bind do?

It makes the contents of one directory available in another directory

It mounts all available filesystems to the current directory

It mounts all user mountable filesystems to the user’s home directory

It mounts all file systems listed in /etc/fstab which have the option userbind set

It permanently mounts a regular file to a directory

24. Which of the following commands list all files and directories within the /tmp/ directory and its subdirectories which are owned by the user root? (Choose two.)

find /tmp Cuser root -print

find Cpath /tmp Cuid root

find /tmp Cuid root -print

find /tmp Cuser root

find Cpath /tmp Cuser root -print

25. The command dbmaint & was used to run dbmaint in the background. However, dbmaint is terminated after logging out of the system.

Which alternative dbmaint invocation lets dbmaint continue to run even when the user running the program logs out?

job Cb dmaint

dbmaint &>/dev/pts/null

nohup dbmaint &

bg dbmaint

wait dbmaint

26. Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file?

fmt Cf 1,4 /etc/passwd

cut Cd : -f 1,4 /etc/passwd

sort Ct : -k 1,4 /etc/passwd

paste Cf 1,4 /etc/passwd

split Cc 1,4 /etc/passwd

27. What output will be displayed when the user fred executes the following command?

echo ‘fred $USER’

fred fred

fred /home/fred/

‘fred $USER’

fred $USER

‘fred fred’

28. Given the following input stream:

txt1.txt

atxt.txt

txtB.txt

Which of the following regular expressions turns this input stream into the following output stream?

txt1.bak.txt

atxt.bak.txt

txtB.bak.txt

s/^.txt/.bak/

s/txt/bak.txt/

s/txt$/bak.txt/

s/^txt$/.bak^/

s/[.txt]/.bak$1/

29. Which of the following commands lists the dependencies of the RPM package file foo.rpm?

rpm CqpR foo.rpm

rpm Cdep foo

rpm Cld foo.rpm

rpm CR foo.rpm

rpm CpD foo

30. Which is the default percentage of reserved space for the root user on new ext4 filesystems?

10%

15%

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31. What is true regarding the command

ls > files

if files does not exist?

The output of ls is printed to the terminal

files is created and contains the output of ls

An error message is shown and ls is not executed

The command files is executed and receives the output of ls

Any output of ls is discarded

32. Which of the following directories on a 64 bit Linux system typically contain shared libraries? (Choose two.)

~/.lib64/

/usr/lib64/

/var/lib64/

/lib64/

/opt/lib64/

33. A faulty kernel module is causing issues with a network interface card.

Which of the following actions ensures that this module is not loaded automatically when the system boots?

Using lsmod --remove --autoclean without specifying the name of a specific module

Using modinfo Ck followed by the name of the offending module

Using modprobe Cr followed by the name of the offending module

Adding a blacklist line including the name of the offending module to the file /etc/modprobe.d/blacklist.conf

Deleting the kernel module’s directory from the file system and recompiling the kernel, including its modules

34. Which of the following commands displays the path to the executable file that would be executed when the command foo is invoked?

lsattr foo

apropos foo

locate foo

whatis foo

which foo

35. Which command must be entered before exiting vi to save the current file as filea.txt?

%s filea.txt

%w filea.txt

:save filea.txt

:w filea.txt

:s filea.txt

36. When considering the use of hard links, what are valid reasons not to use hard links?

Hard links are not available on all Linux systems because traditional filesystems, such as ext4, do not support them

Each hard link has individual ownership, permissions and ACLs which can lead to unintended disclosure of file content

Hard links are specific to one filesystem and cannot point to files on another filesystem

If users other than root should be able to create hard links, suln has to be installed and configured

When a hard linked file is changed, a copy of the file is created and consumes additional space

37. Which of the following regular expressions represents a single upper-case letter?

:UPPER:

[A-Z]

!a-z

{AZ}

38. Which of the following apt-get subcommands installs the newest versions of all currently installed packages?

auto-update

dist-upgrade

full-upgrade

install

update

39. Which daemon handles power management events on a Linux system?

acpid

batteryd

pwrmgntd

psd

inetd

40. What is the first program the Linux kernel starts at boot time when using System V init?

/lib/init.so

/proc/sys/kernel/init

/etc/rc.d/rcinit

/sbin/init

/boot/init

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41. Which of the following properties of a Linux system should be changed when a virtual machine is cloned? (Choose two.)

The partitioning scheme

The file system

The D-Bus Machine ID

The permissions of /root/

The SSH host keys

42. A Debian package creates several files during its installation.

Which of the following commands searches for packages owning the file /etc/debian_version?

apt-get search /etc/debian_version

apt Cr /etc/debian_version

find /etc/debian_version -dpkg

dpkg CS /etc/debian_version

apt-file /etc/debian_version

43. Which of the following commands installs GRUB 2 into the master boot record on the third hard disk?

grub2 install /dev/sdc

grub-mkrescue /dev/sdc

grub-mbrinstall /dev/sdc

grub-setup /dev/sdc

grub-install /dev/sdc

44. Consider the following directory:

drwxrwxr-x 2 root sales 4096 Jan 1 15:21 sales

Which command ensures new files created within the directory sales are owned by the group sales? (Choose two.)

chmod g+s sales

setpol CR newgroup=sales sales

chgrp Cp sales sales

chown --persistent *.sales sales

chmod 2775 sales

45. Which of the following files exist in a standard GRUB 2 installation? (Choose two.)

/boot/grub/stages/stage0

/boot/grub/i386-pc/1vm.mod

/boot/grub/fstab

/boot/grub/grub.cfg

/boot/grub/linux/vmlinuz

46. When is the content of the kernel ring buffer reset? (Choose two.)

When the ring buffer is explicitly reset using the command dmesg --clear

When the ring buffer is read using dmesg without any additional parameters

When a configurable amount of time, 15 minutes by default, has passed

When the kernel loads a previously unloaded kernel module

When the system is shut down or rebooted

47. Which of the following is true when a file system, which is neither listed in /etc/fstab nor known to system, is mounted manually?

systemd ignores any manual mounts which are not done using the systemctl mount command

The command systemctl mountsync can be used to create a mount unit based on the existing mount

systemd automatically generates a mount unit and monitors the mount point without changing it

Unless a systemd mount unit is created, systemd unmounts the file system after a short period of time

systemctl unmount must be used to remove the mount because system opens a file descriptor on the mount point

48. Which of the following commands redirects the output of ls to standard error?

ls >-1

ls <<ERR

ls >&2

ls >>2

ls |error

49. Which command uninstalls a package but keeps its configuration files in case the package is re-installed?

dpkg Cs pkgname

dpkg CL pkgname

dpkg CP pkgname

dpkg Cv pkgname

dpkg Cr pkgname

50. Topic 1, System Architecture

CORRECT TEXT

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)

Page 6 of 10

51. 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

52. 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

53. CORRECT TEXT

You suspect that a new ethernet card might be conflicting with another device.

Which file should you check within the /proc tree to learn which IRQs are being used by which kernel drivers?

54. CORRECT TEXT

Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

55. During a system boot cycle, what program is executed after the BIOS completes its tasks?

The bootloader

The inetd program

The init program

The kernel

56. What information can the lspci command display about the system hardware? (Choose THREE correct answers.)

Device IRQ settings

PCI bus speed

System battery type

Device vendor identification

Ethernet MAC address

57. 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

58. CORRECT TEXT

The USB device filesystem can be found under /proc/______/usb/. (Please fill in the blank with the single word only)

59. 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.

60. 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

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

silent

verbose=0

nomesg

quiet

62. The message "Hard Disk Error" is displayed on the screen during Stage 1 of the GRUB boot process.

What does this indicate?

The kernel was unable to execute /bin/init

The next Stage cannot be read from the hard disk because GRUB was unable to determine the size and geometry of the disk

One or more of the filesystems on the hard disk has errors and a filesystem check should be run

The BIOS was unable to read the necessary data from the Master Boot Record to begin the boot process

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

bcast

mesg

wall

yell

64. CORRECT TEXT

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

65. Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?

/etc/keys

/proc/keys

/etc/inittab

/proc/inittab

/etc/reboot

66. Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)

shutdown -r now

shutdown -r "rebooting"

telinit 6

telinit 0

shutdown -k now "rebooting"

67. Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct answers.)

68. Which of the following statements is correct when talking about /proc/?

All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.

All files within /proc/ are read-only and their contents cannot be changed.

All changes to files in /proc/ are immediately recognized by the kernel.

All files within /proc/ are only readable by the root user.

69. Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)

startd

systemd

Upstart

SysInit

SysV init

70. 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.)

shutdown -R 1 now

shutdown -single now

init 1

telinit 1

runlevel 1

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71. 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.

72. 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

73. Topic 2, Linux Installation and Package Management

Which RPM command will output the name of the package which supplied the file /etc/exports?

rpm -F /etc/exports

rpm -qf /etc/exports

rpm -Kl /etc/exports

rpm -qp /etc/exports

rpm -qi/etc/exports

74. CORRECT TEXT

Which Debian package management tool asks the configuration questions for a specific already installed package just as if the package were being installed for the first time? (Specify ONLY the command without any path or parameters.)

75. 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

76. When using rpm --verify to check files created during the installation of RPM packages, which of the following information is taken into consideration? (Choose THREE correct answers.)

Timestamps

MD5 checksums

Inodes

File sizes

GnuPG signatures

77. CORRECT TEXT

Which option to the yum command will update the entire system? (Specify ONLY the option name without any additional parameters.)

78. Which of the following commands can be used to perform a full text search on all available packages on a Debian system?

apt

apt-cache

apt-get

apt-search

dpkg

79. Which of the following is correct when talking about mount points?

Every existing directory can be used as a mount point.

Only empty directories can be used as a mount point.

Directories need to have the SetUID flag set to be used as a mount point.

Files within a directory are deleted when the directory is used as a mount point.

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

apt-get update

apt-get upgrade

apt-cache update

apt-get refresh

apt-cache upgrade

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81. You want to preview where the package file, apache-xml.i386.rpm, will install its files before installing it.

What command do you issue?

rpm -qp apache-xml.i386.rpm

rpm -qv apache-xml.i386.rpm

rpm -ql apache-xml.i386.rpm

rpm -qpl apache-xml.i386.rpm

82. CORRECT TEXT

Typically, which top level system directory is used for files and data that change regularly while the system is running and are to be kept between reboots? (Specify only the top level directory)

83. When removing a package, which of the following dpkg options will completely remove the files including configuration files?

--clean

--delete

--purge

Cremove

84. CORRECT TEXT

An administrator has issued the following command:

grub-install --root-directory=/custom-grub /dev/sda

In which directory will new configuration files be found? (Provide the full directory path only without the filename)

85. Which of the following commands updates the linker cache of shared libraries?

mkcache

soconfig

mkldconfig

lddconfig

ldconfig

86. CORRECT TEXT

Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)

87. 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

88. 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

89. CORRECT TEXT

To prevent users from being able to fill up the / partition, the ____________ directory should be on a separate partition if possible because it is world writeable.

90. CORRECT TEXT

In which directory must definition files be placed to add additional repositories to yum?

Page 10 of 10

91. CORRECT TEXT

Which world-writable directory should be placed on a separate partition in order to prevent users from being able to fill up the / filesystem? (Specify the full path to the directory.)

92. Which of the following commands lists all currently installed packages when using RPM

package management?

yum --query --all

yum --list --installed

rpm --query --all

rpm --list Cinstalled

93. Which file should be edited to select the network locations from which Debian installation package files are loaded?

/etc/dpkg/dpkg.cfg

/etc/apt/apt.conf

/etc/apt/apt.conf.d

/etc/apt/sources.list

/etc/dpkg/dselect.cfg

94. Which of the following apt-get commands will install the newest versions of all currently installed packages without removing any packages or installing new packages that are not already installed?

auto-update

upgrade

dist-upgrade

install

update

95. Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

dd if=/dev/zero of=/dev/sda bs=512

dd if=/dev/zero of=/dev/sda bs=512 count=1

dd if=/dev/zero of=/dev/sda bs=440 count=1

dd if=/dev/zero of=/dev/sda bs=440

96. To what environment variable will you assign or append a value if you need to tell the dynamic linker to look in a build directory for some of a program's shared libraries?

LD_LOAD_PATH

LD_LIB_PATH

LD_LIBRARY_PATH

LD_SHARE_PATH

LD_RUN_PATH

97. CORRECT TEXT

What is the name of the main configuration file for GNU GRUB? (Specify the file name only without any path.)

98. What is the difference between the --remove and the --purge action with the dpkg command?

--remove removes the program, --purge also removes the config files

--remove only removes the program, --purge only removes the config files

--remove removes a package, --purge also removes all packages dependent on it

--remove removes only the package file itself, --purge removes all files related to the package

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