201-450 Dumps Guarantee You Pass 201-450 Exam Easily

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June 8, 2025

As new threats and vulnerabilities emerge, the 201-450 exam is updated to reflect the latest trends in LPIC-2. By using 201-450 exam dumps questions, you can ensure that you're staying up-to-date with the latest exam content and are fully prepared to address new challenges in LPIC-2 Exam 201, Part 1 of 2, version 4.5. Lpi 201-450 exam dumps questions can help you optimize your preparation and ensure that you're fully prepared for the exam. Practice free Lpi 201-450 exam dumps questions below.

Page 1 of 11

1. Why is the root file system mounted read-only during boot and remounted with write permission later on?

Because if problems with the root file system are detected during the boot, fsck can be run, without risk of damage.

Because this way crackers cannot collect information about root with boot sniffers

To avoid writing to the disk, unless the root password is known.

To avoid other operating systems overwriting the Linux root partition

Because the disk has its own write protection that cannot change by the operating system.

2. In which subdirectory of /proc is information about PC Cards, which are connected and recognized by a 2.6 kernel stored? Please enter the complete path.

3. What are the options to node.startup in the iscsid.conf file? (Choose TWO correct answers.)

initiate

manual

discover

automatic

4. What is incorrect about these entries in /etc/hosts which could be causing host name lookup problems with host2?

host1 192.168.1.12

host2 192.168.1.12

Two host names are using the same IP address.

The server doing the query is on a different subnet.

The fields are out of order.

host2 is not a fully qualified domain name.

5. Which command could be used to see the kernel messages created from the boot time until now?

initm

initmessage

initmsg

inittab

dmesg

6. When configuring a new kernel, what file under /usr/src/linux/ contains the configuration?

7. In which directory is the Linux kernel documentation be found?

8. What mechanism does collectd use to gather monitoring information on systems?

It uses a library of plugins.

A master server connects to a collectd service on each machine to retrieve the information.

It collects its own information on each server and sends that to a master server.

It makes SNMP queries to the clients being monitored.

9. Which RAID level provides the most redundancy?

RAID4

RAID5

RAID1

RAID0

10. Why is the root file system mounted read-only during boot and remounted with write permission later on?

Because if problems with the root file system are detected during the boot, fsck can be run, without risk of damage.

Because this way crackers cannot collect information about root with boot sniffers.

To avoid writing to the disk, unless the root password is known.

To avoid other operating systems overwriting the Linux root partition.

Because the disk has its own write protection that cannot be changed by the operating system.

Page 2 of 11

11. According to the configuration below, what is the e-mail address of the administrator for this domain?

$TTL 86400

$ORIGIN lpi.org

@ IN SOA test.lpi.org hostmaster.lpi.org (

2005010101

10800

604800

86400 )

12. Which of these commands allows you to use shared libraries that are in /usr/local/lib?

export LD_PRELOAD=/usr/local/lib

export LD_LIBRARY_PATH=/usr/local/lib

ldconfig /usr/local/lib

ldd /usr/local/lib

13. On a Debian based system, which command can be used to stop the apache2 init script from running at boot time once the real script has been removed from /etc/init.d/?

update-rc.d -d apache2

update-rc.d apache2 delete

update-rc.d remove apache2

update-rc.d apache2 remove

update-rc.d delete apache2

14. What is the command that will extract information, such as module parameters, from the Linux Kernel modules and print this information to the command line? (Please specify only the command with no path information)

15. Which system files are updated as devices are mounted and unmount to provide information on the mounted devices and the options used? (Please specify TWO answers)

/proc/dtab

/etc/mtab

/etc/fstab

/proc/mounts

/proc/devices

16. Consider the following /etc/fstab file:

/dev/hda1 swap swap defaults 0 0

/dev/hda2 / ext2 defaults 1 1

/dev/hda3 /home ext2 defaults 1 2

none /proc proc defaults 0 0

/dev/fd0 /media/floppy vfat user,noauto 0 0

What command can an ordinary (non-root) user use to mount a floppy disk in this system? (Please enter the command with all parameters and/or options)

17. A BIND server should never answer queries from certain networks or hosts.

Which configuration directive could be used for this purpose?

deny-query { ...; };

no-answer { ...; };

deny-answer { ...; };

deny-access { ...; };

blackhole { ...; };

18. Which commands are used to load modules into the Linux kernel? (Choose TWO correct answers.)

insmod

loadmod

kernload

modprobe

probemod

19. What command is used to re-add a partition to a software RAID setup?

raidhotadd

raidadd

addraid

raidaddhot

20. Which directory in /dev/disk/ can be used to determine the UUID of a connected hard disk?

Page 3 of 11

21. What command is used to permanently set the options in the kernel when making a boot disk?

blockdev

kconfig

lilo

rdev

22. Which command is used to create a ISO9660 filesystem? (Specify ONLY the command without any path or parameters.)

23. Which directory contains the PCMCIA configuration files?

24. Which site-specific configuration file for the shadow login suite must be modified to log login failures? Please enter the complete path to that file.

25. Which of the following commands can be used to script interactions with various TCP or UDP services?

ftp

tcpdump

strings

wget

26. In the following output, what is the 5 minute load average for the system?

# uptime

12:10:05 up 18 days, 19:00, 2 users, load average. 0.47, 24.71, 35.31

0.47

24.71

35.31

There is no 5 minute interval. It is some value between 0.47 and 24.71.

There is no 5 minute interval. It is some value between 24.71 and 35.31.

27. When building an RPM package, which rpmbuild option is used to unpack sources and apply patches before proceeding with the next steps?

-ba

-bb

-be

-bs

-bp

28. Which command, with options, could be used to change an ext2 file system on /dev/hda1 to an ext3 file system?

29. A server requires a GRUB2 boot option which will always boot to runlevel 1.

Which line of a GRUB2 configuration file starts the beginning of the settings needed to make this new choice available?

initrd

linux

menuentry

runlevel

30. What command must you type as root to have the system re-scan the directories on the library path to enable programs to find dynamic libraries in these directories?

sysctl

ldconfig

shadow

init -libs

Page 4 of 11

31. DNSSEC is used for?

Encrypted DNS queries between nameservers.

Cryptographic authentication of DNS zones.

Secondary DNS queries for local zones.

Defining a secure DNS section.

Querying a secure DNS section.

32. Before compiling a new kernel, what needs to be done?

Compile kernel modules

Configure the kernel options

Delete old kernel sources

Change to runlevel 1

All of the above

33. The correct command sequence to create and mount logical volumes on a Linux system is:

lvcreate, pvcreate, vgcreate, mkfs, mount

pvcreate, vgcreate, lvcreate, mkfs, mount

vgcreate, lvcreate, pvcreate, mount, mkfs

mkfs, pvcreate, vgcreate, lvcreate, mount

pvcreate, lvcreate, vgcreate, mkfs, mount

34. How can the kernel parameter for the maximum size of the shared memory segment (shmmax) be changed to 2GB (2147483648 Bytes) on a running system? (Choose TWO correct answers.)

Edit /etc/shmmax and set the parameter to 2147483648.

sysctl shmmax=2147483648

sysctl kernel.shmmax=2147483648

echo 2147483648 > /proc/sys/kernel/shmmax

export kernel.shmmax=2147483648

35. A system with SysV-init has a service installed called apache2.

Which file controls the start and stop of this service and is referenced by the various runlevel directories?

/etc/init.d/apache2

/etc/rc2.d/70apache2

/etc/rc2.d/apache2

/etc/rc2.d/apache2.start

36. Which THREE lines below are valid entries in /etc/crontab and will work properly?

0 23 * * 7 root tar cvf /dev/st0 /etc

0 10 6 22 * /usr/local/bin/fs-report.sh

0 17 * * 1 jdoe accouting-generation

20 6 1 * * root graphicals-generations

0 10 * * 2-6 tar cvf /dev/st0 /etc

37. On a system with separate partitions for /, /usr, /var, /tmp, which filesystem[s] can safely be mounted readonly?

/var, /usr

/var

/usr, /, /tmp

/usr

/tmp

38. During booting, when the Linux kernel loads an initramfs file, which command from the initramfs will be executed first, if present?

/init

/initrd

/linuxrc

/rc.local

/sbin/init

39. Which environment variable you have to setup to use shared libraries that are not in the standard

search path?

40. In the output of sar -b, what does tps stand for?

Terrabyte per second

Traffic per second

Transfers per second

Total data per second

Terrabit per second

Page 5 of 11

41. What does the following script do? #!/bin/bash find / -perm +4000 | mail -s "Daily find output" root

Emails a report of all guid files to root

Emails a report of all important files to root

Emails a report of all writeable files to root

Emails a report of all suid files to root

Corrects permissions on files and emails the result to root

42. Which of the following commands can be used to access the content of a ramdisk file (/boot/initrd) used by the kernel at boot time?

mount /boot/initrd /mnt/ -0 loop; cat /mnt

mkintird -d /boot/initrd; mount /boot/initrd /mnt/ -o loop

cp /boot/initrd /tmp/initrd.gz; mount /tmp/initrd /mnt/ -o loop

cp /boot/initrd /tmp/initrd.gz; gunzip initrd.gz; mount /tmp/initrd /mnt/ -o loop

cp /boot/initrd /tmp/initrd.gz; gunzip initrd.gz; mount /tmp/initrd /mnt/

43. Which THREE statements concerning automounter are true?

The autofs service does not need to be restarted after changing automounter map files

Only one entry in master map can refer to each map file

The automounter service does not rely on the kernel configuration

For each entry in auto.master, a separate automounter daemon is started

Changes to auto.master require automounter to reload its configuration

44. To securely use dynamic DNS updates, the use of TSIG is recommended.

Which TWO statements about TSIG are true?

TSIG is used for zone data encryption

TSIG is a signal to start a zone update

TSIG is used in zone files

TSIG is used only in server configuration

Servers using TSIG must be in sync (time zone!)

45. What command is used to make an exact copy, at a single point in time, of a logical volume for backup purposes?

lvsnap

lvsnapshot

lvcreate

lvcopy

lvclone

46. What directive can be used in named.conf to restrict zone transfers to the 192.168.1.0/24 network?

47. Consider the following /etc/fstab file:

/dev/hda1 swap swap defaults 0 0

/dev/hda2 / ext2 defaults 1 1

/dev/hda3 /home ext2 defaults 1 2

none /proc proc defaults 0 0

/dev/sdb1 /media/usb0 vfat user,noauto 0 0

What is one of the possible commands that an ordinary (non-root) user can use to mount the /dev/sdb1 partition on the /media/usb0 mount point? (Please enter the command with all parameters and/or options but without any file system type options.)

48. Which mount option must be used in the example /etc/fstab entry below, to ensure that a specific filesystem is not mounted when the system is booted?

/dev/hdd /media/cdrom iso9660 _____________________,ro 0 0

49. Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0?

iw phy pyh0 info

iw dev wlan0 info

iw dev wlan0 show

iw phy wlan0 show

iw phy0 show

50. Which of the following commands adds a static IPv6 address to the network interface eth0?

ip add addr 2001:db8::1337/64 dev eth0

ip -6 add addr 2001:db8::1337/64 dev eth0

ip addr add 2001:db8::1337/64 dev eth0

ip -6 addr add 2001:db8::1337/64 dev eth0

ip addr add -6 2001:db8::1337/64 dev eth0

Page 6 of 11

51. When using SysV init system, the file /etc/rc3.d/S55sshd is a symbolic link. Type the full path and file name to which this is linked.

52. Which file contains the message that is displayed above the login prompt of the system console? (Specify the full name of the file, including path.)

53. How is the source code for the main Linux kernel modules distributed?

It is included with the Linux kernel source code.

The kernel modules are downloaded on demand as they are used during compilation.

The kernel modules have their own release cycle and can be maintained separately from the Linux kernel source.

It is provided as a separate download alongside the Linux kernel source code of the same version.

54. To alter a Linux system's default runlevel, what would you do?

Issue the telinitx command, where x is the desired runlevel.

Edit /etc/modules.conf, and enter the runlevel as an option to the runlevel module.

Issue the telinit Q command to have the system query you for a new runlevel.

Edit /etc/inittab and enter the correct runlevel in the id line.

55. What tool can be used to send kernel boot messages to a remote server?

56. A new kernel version needs to be compiled to use a new feature. If the old kernel configuration file is available, which make target will only update the configuration file for the new kernel version? (Please enter only the make target.)

57. If all of the following files and/or symlinks exist in a SysV-init runlevel directory, which of the following will be executed first when booting the system directly into the runlevel?

S99lpi

K99lpi

PRE-S99lpi

S98lpi

S99a-lpi

58. Which program lists information about files and network connections opened by processes? (Specify ONLY the command without any path or parameters.)

59. A Linux machine freezes during boot. To boot directly to a shell prompt so that editing of files and manual starting of services is possible which command line must be passed to the kernel for the boot process?

init=/bin/bash

runlevel=1

/bin/sh

60. A machine is running in single user mode and, as such, not all file-systems are accessible.

What command must be run to make all of the other file-systems listed in /etc/fstab accessible?

mount --all

mountfs --all

mountfs -a

mount -a

Page 7 of 11

61. A Linux server is running in single user mode for regular maintenance.

Which commands are used to restore the server to its usual runlevel? (Choose TWO correct answers.)

telinit 0

shutdown -r now

sync

shutdown -h now

reboot

62. Which command can be used to scan a specified network looking for IP addresses that appear to be in use?

nmap

tcpdump

netscan

hostdiscover

63. Which of the following commands will copy one disk partition /dev/sda3 to /dev/sdb3?

dd if=/dev/sdb3 of =/dev/sda3 bs=4096 conv=notrunc

dd if=/dev/sda3 of=/dev/sdb3 bs=4096 conv=notrunc

dd --input /dev/sda3 --output /dev/sdb3 bs=4096 conv=notrunc

dd --input /dev/sdb3 --output /dev/sda3 bs=4096 conv=notrunc

64. 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.)

telinit 0

systemctl default

sync

systemctl emergency

systemctl reboot

65. In the following output, the load averages represent the system load averages for what time frames?

# uptime

12:10:05 up 18 days, 19:00, 2 users, load average. 0.47, 24.71, 35.31

1, 5 and 15 minutes

1, 15 and 30 minutes

1, 15, and 30 seconds

15, 30 and 60 minutes

15, 30 and 60 seconds

66. What needs to be done to enable 32 bit I/O transfer mode for (E)IDE disks, on a system running a 2.4 series Linux kernel?

The Linux kernel must be recompiled.

The sysctl utility must be used.

The hdparm utility must be used.

This feature isn't supported in 2.4 series kernels.

This feature is enabled by default in 2.4 series kernels

67. 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?

It will force the removal of the symlinks in /etc/rc

d/ even when the links are read only

It will remove both the symlinks in /etc/rc

d/ and the init script in /etc/init.d/

It will remove the init script in /etc/init.d/ and the symlinks in /etc/rc

d/ and update the package information of installed files

It will force the removal of symlinks in /etc/rc

d/ even if the corresponding init script still exists in /etc/init.d/

68. How do /etc/profile and /etc/bashrc differ?

/etc/profile is a tcsh logout script; /etc/bashrc holds bash environment variables.

/etc/profile holds user login statistics; /etc/bashrc holds user shell preferences.

/etc/profile is a login script; /etc/bashrc is a non-login script.

/etc/profile holds user account data; /etc/bashrc is a bash startup script.

69. According to the tcpdump output below, what is the IP address of the client host?

02:12:40.511381 IP 192.168.246.11.1045 > 192.168.246.1.22: S 3838532429:3838532429(0) win 5840
31325740,nop,wscale 2>

02:12:40.511540 IP 192.168.246.1.22 > 192.168.246.11.1045: S 1209330085:1209330085(0) ack 383853 2430 win 5792

02:12:40.511755 IP 192.168.246.11.1045 > 192.168.246.1.22: . ack 1 win 1460

02:12:40.515122 IP 192.168.246.1.22 > 192.168.246.11.1045: P 1:26(25) ack 1 win 5792

02:12:40.515511 IP 192.168.246.11.1045 > 192.168.246.1.22: . ack 26 win 1460

02:12:40.515952 IP 192.168.246.11.1045 > 192.168.246.1.22: P 1:23(22) ack 26 win 1460

70. For interpreting system rc scripts a shell is most commonly used. Please enter the first line found in such scripts.

Page 8 of 11

71. Select the TWO correct alternatives regarding the kill -9 command:

Its use should be avoided and other alternatives should be tried before it.

Its use can occasionally cause the data loss.

It is possible that zombie processes can be created as a consequence of its use.

It can always be used with no restrictions.

Its frequent use can increase the RAM utilization.

72. Which of the following properties should be recorded in order to monitor the quality of a network link? (Choose two.)

Bandwidth in both directions

Number of nodes using the link

Effective Latency

Number of IPv4 and IPv6 packets

Number of used TCP ports

73. What is the purpose of a system mount unit?

It is used by the command systemd-mount and allows users to mount partitions to mount points of their choice

It is used only to mount network file systems to local mount points. It cannot be used for local media

It is created by the command systemd-fstab-generator to integrate entries from /etc/fstab into the system boot process

It is used by the command mount when using system to mount and unmount file systems

74. Which of the following commands restores only those files containing lpi in their name from the archive lpifiles.tar.gz?

tar xvzf lpifiles.tar.gz --wildcards `*lpi*'

tar xvzwf lpifiles.tar.gz `*lpi*'

tar -xvfz lpifiles.tar.gz --deep `*lpi*'

tar -xvzf lpifiles.tar.gz --subdirs `*lpi*'

tar xvzf lpifiles.tar.gz --globbing `*lpi*'

75. Which directory in /dev/disk/ can be used to determine the UUID of a connected hard disk?

76. What is the purpose of udevmonitor?

Listen to kernel events produced by a udev rule and print information to the console

Monitors the /dev directory for new devices

Monitors the udev process and prints performance statistics to the console

Communicates with D-Bus to setup new devices

77. The main configuration file for autofs has this entry:

/home /etc/auto.home

What is the meaning of the /etc/auto.home file?

It has the indirect maps for the mounting of file systems.

It has configuration information, such as passwords and keys, for the remote file server.

It has configuration information on settings for the /home mount point.

It is the holds the SSL key to allow authentication to the remote file server.

78. Why has mkinitrd been deprecated in favour of mkinitramfs in 2.6 series kernels? (Select TWO correct answers)

It isn't loaded until later in the boot process

An easy to use GUI is available for mkinitramfs

mkinitrd relies on devfs

SATA hard drives are unsupported

79. Please enter the complete path to the main SysV init process configuration file.

80. What should be done after updating the configuration file for syslogd in order to make the changes become effective? (Choose TWO correct answers.)

No action is required, syslogd will notice the updated configuration file after a few minutes.

Send the HUP signal to the syslogd process.

Restart the syslogd service.

Run the command syslogd -u.

Page 9 of 11

81. After unpacking source code, what file is used by configure to create a final Makefile?

configure.in

configure.ac

Makefile.in

Makefile.tmpl

82. Which file contains the software RAID configuration? (Please enter the file-name without the path)

83. What is the term for unmounting a filesystem, which cleans up all references to the filesystem, as soon as it is not in use any longer?

soft

strong

forced

lazy

delayed

84. On a server running the 2.6.27-11 Linux kernel, which file in the/boot directory contains the kernel configuration parameters?

85. Which port must be open on a firewall, to allow a DNS server to receive queries? (Enter only the port number).

86. When compiling kernel modules, which make target will remove most generated files but keep the config file and enough build support to build external modules? (Please enter only the make target and no other words)

87. You wish to notify all users that you have to take down a service on which they rely.

What command will allow you to send a message to all currently logged on users? Enter only the command, not the path.

88. Which of the following filter keywords for tcpdump specify the transfer direction for network packets? (Choose TWO correct answers.)

source

src

dest

src or dst

both

89. How can a journal added, non-destructively, to the ext2 file-system on /dev/dg/lv05?

Please enter the command with all parameter(s):

90. Using only commands included with named, what is the command, with options or parameters, to make named re-read its zone files?

Page 10 of 11

91. Which command with all parameters and arguments, can be used by root to erase the cron job list for the user fred?

92. One of the IDE hard drives in a server is transferring data very slowly.

What command must be

run to enable DMA on it?

hdparm -d /dev/hda

hdparm --dma /dev/hda

hdparm --dma /dev/hda1

hdparm -d /dev/hda1

hdparm -d1 /dev/hda

93. What command is used to create a file-system to be burned to a CD? (Please enter the command without the path or any options or parameters)

94. Why shouldn't you use the options -z and -j when using tar with a magnetic tape backup?

In case of damaged tape uncompressed tar archives may allow partial recovery of the backup

Standard Linux compression software and hardware compresion in the tape drive will cause bigger files on the tapes.

Standard Linux compression software won't be able to write to sequential tape media.

Backup and restore performance will be better if we don't introduce the compression delay into the process

The tape drive hardware-based compression achieves higher compression rates than either gzip or bzip2 software based compression.

95. Which RAID level value must be used with Linux software RAID in order to create an array of mirrored devices?

container

mirrorstripe

96. What command will remove a physical volume from a volume group? (Specify ONLY the command without any path or parameters.)

97. What information is found in the following excerpt from the file /proc/mdstat? (Choose two.)

One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy

The spare disk /dev/sda1 is used to restore full redundancy after the current recovery

The information [UU_] means, that the raid is missing one disk and is not fully redundant

The device is using version 1.2 metadata to allow LILO and GRUB Legacy to use /dev/md0 as the boot partition. This would not have been necessary with GRUB2

The information [3/2] means that 3 RAID disks belong to the array and 2 disks are spare. Together they equal the number of available disks

98. Please enter the complete path to the main init process configuration file.

99. Which of the following are common backup systems used in Linux? (Choose TWO correct answers.)

Amanda

Bacula

DrBackup

BREWBackup

SARcheck

100. Which of the following best describes the format of the /etc/fstab file?

mount point; device name; filesystem type; mount options; dump filesystem; fsck order

device name; mount point; filesystem type; mount options; dump filesystem; fsck order

mount point; filesystem type; device name; mount options; dump filesystem; fsck order

device name; mount point; mount options; filesystem type; dump filessystem; fsck order

device name; filesystem type; mount point; mount options; dump filesystem; fsck order

Page 11 of 11

101. What script is included with the kernel source to patch a kernel?

patch

patch-kernel

apply-patch

update-kernel

102. Which single command will simulate a failed device within a RAID 5 array?

mdadm --remove /dev/md0 /dev/sdd1

mdadm --zero-superblock /dev/sdf3

mdadm --force-fault /dev/md2 /dev/sde2

mdadm --fail /dev/md0 /dev/sdc1

mdadm /dev/md0 --offline /dev/sdc1

103. When planning a web server which of the following choices will impact system sizing? (Choose THREE correct answers.)

How many concurrent users are expected.

Which hardware vendor has better Linux support.

What type of content will be served.

What scripting languages will the web server support.

Will the OS install be CD, DVD or network based.

104. What is the purpose of vgextend?

Extend a volume group's footprint on disk

Add physical volumes to a volume group

Increase the number of days between scheduled error checking

Create a volume group which uses all available space on disk

105. A correctly formatted entry has been added to /etc/hosts.deny to prevent certain clients from connecting to a service but this is having no effect.

What could be the cause of this? (Choose TWO correct answers.)

tcpd needs to be sent the HUP signal.

The service needs to be restarted.

The machine needs to be restarted.

There is a conflicting entry in /etc/hosts.allow.

The service does not support tcpwrapper.

106. Which of the following is a global non-login bash startup script?

/etc/profile

/etc/bashrc

/root/.profile

/root/.bashrc

107. On a system with separate partitions for /, /usr, /var & /tmp, which filesystem can safely be mounted read-only?

108. Which program can be used to adjust the DMA settings of an IDE hard drive? Please enter it without path, parameters or arguments

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