Question 1

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

Accepted Answer

A)  iw phy pyh0 info 
B)  iw dev wlan0 info 
C)  iw dev wlan0 show 
D)  iw phy wlan0 show 
E)  iw phy0 show 
A)  iw phy pyh0 info 
B)  iw dev wlan0 info 
C)  iw dev wlan0 show 
D)  iw phy wlan0 show 
E)  iw phy0 show

Question 2

What component of a system does smartd monitor?

Accepted Answer

A)  CPU 
B)  RAM 
C)  Hard drives 
D)  Ethernet traffic 
A)  CPU 
B)  RAM 
C)  Hard drives 
D)  Ethernet traffic

Question 3

Fill in the blank. The users of the local network complain that name resolution is not fast enough. Which command shows the time taken to resolve a DNS query? (Specify the command without path.)

Accepted Answer

The answer of Fill in the blank. The users of...

Question 4

How can the label root be added to the ext4 filesystem on /dev/sda1 ?

Accepted Answer

A)  relabel /dev/sda1 root 
B)  tune2fs -L root /dev/sda1 
C)  echo 'root' > /proc/fs/sda1/label 
D)  labelfs --device /dev/sda1 root 
A)  relabel /dev/sda1 root 
B)  tune2fs -L root /dev/sda1 
C)  echo 'root' > /proc/fs/sda1/label 
D)  labelfs --device /dev/sda1 root

Question 5

A system has one hard disk and one CD writer which are both connected to SATA controllers. Which device represents the CD writer?

Accepted Answer

A)  /dev/hdb 
B)  /dev/sdd 
C)  /dev/scd1 
D)  /dev/sr0 
E)  /dev/sr1 
A)  /dev/hdb 
B)  /dev/sdd 
C)  /dev/scd1 
D)  /dev/sr0 
E)  /dev/sr1

Question 6

After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

Accepted Answer

A)  To initramfs is independent of the kernel and should not be modified unless the hardware configuration of the machine has changed 
B)  Since the initramfs contains kernel modules, a new initramfs must be built for the new kernel 
C)  During the compilation of the Linux kernel, a new initramfs is built automatically. The new initramfs only needs to be installed 
D)  The system should be restarted since the initramfs reconfigures itself for the new kernel during the startup of the system 
A)  To initramfs is independent of the kernel and should not be modified unless the hardware configuration of the machine has changed 
B)  Since the initramfs contains kernel modules, a new initramfs must be built for the new kernel 
C)  During the compilation of the Linux kernel, a new initramfs is built automatically. The new initramfs only needs to be installed 
D)  The system should be restarted since the initramfs reconfigures itself for the new kernel during the startup of the system

Question 7

Which of the following configuration files are used by tcpwrapper?

Accepted Answer

A)  /etc/tcpd.allow and etc/tcpd.deny /etc/tcpd.allow and etc/tcpd.deny 
B)  /etc/tcpwrapper.allow and /etc/tcpwrapper.deny /etc/tcpwrapper.allow /etc/tcpwrapper.deny 
C)  /etc/hosts.allow and /etc/hosts.deny /etc/hosts.allow /etc/hosts.deny 
D)  /etc/service.allow and /etc/service.deny /etc/service.allow /etc/service.deny 
A)  /etc/tcpd.allow and etc/tcpd.deny /etc/tcpd.allow and etc/tcpd.deny 
B)  /etc/tcpwrapper.allow and /etc/tcpwrapper.deny /etc/tcpwrapper.allow /etc/tcpwrapper.deny 
C)  /etc/hosts.allow and /etc/hosts.deny /etc/hosts.allow /etc/hosts.deny 
D)  /etc/service.allow and /etc/service.deny /etc/service.allow /etc/service.deny

Question 8

Which of the following commands creates a Btrfs subvolume named volume in /mnt ?

Accepted Answer

A)  btrfs subvolume add -n volume /mnt 
B)  btrfs create subvolume /mnt volume 
C)  btrfs-subvolume create /mnt/volume 
D)  btrfs subvolume new volume /mnt 
E)  btrfs subvolume create /mnt/volume 
A)  btrfs subvolume add -n volume /mnt 
B)  btrfs create subvolume /mnt volume 
C)  btrfs-subvolume create /mnt/volume 
D)  btrfs subvolume new volume /mnt 
E)  btrfs subvolume create /mnt/volume

Question 9

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

Accepted Answer

A)  tar xvzf lpifiles.tar.gz --wildcards '*lpi*' 
B)  tar xvzwf lpifiles.tar.gz '*lpi*' 
C)  tar -xvfz lpifiles.tar.gz --deep '*lpi*' 
D)  tar -xvzf lpifiles.tar.gz --subdirs '*lpi*' 
E)  tar xvzf lpifiles.tar.gz --globbing '*lpi*' 
A)  tar xvzf lpifiles.tar.gz --wildcards '*lpi*' 
B)  tar xvzwf lpifiles.tar.gz '*lpi*' 
C)  tar -xvfz lpifiles.tar.gz --deep '*lpi*' 
D)  tar -xvzf lpifiles.tar.gz --subdirs '*lpi*' 
E)  tar xvzf lpifiles.tar.gz --globbing '*lpi*'

Question 10

What information is found in the following excerpt from the file /proc/mdstat ?

Accepted Answer

A)  One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy 
B)  The spare disk /dev/sda1 is used to restore full redundancy after the current recovery 
C)  The information [UU_] means, that the raid is missing one disk and is not fully redundant 
D)  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 
E)  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 
A)  One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy 
B)  The spare disk /dev/sda1 is used to restore full redundancy after the current recovery 
C)  The information [UU_] means, that the raid is missing one disk and is not fully redundant 
D)  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 
E)  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

Question 11

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

Accepted Answer

A)  It is included with the Linux kernel source code 
B)  The kernel modules are downloaded on demand as they are used during compilation 
C)  The kernel modules have their own release cycle and can be maintained separately from the Linux kernel source 
D)  It is provided as a separate download alongside the Linux kernel source code for the same version 
A)  It is included with the Linux kernel source code 
B)  The kernel modules are downloaded on demand as they are used during compilation 
C)  The kernel modules have their own release cycle and can be maintained separately from the Linux kernel source 
D)  It is provided as a separate download alongside the Linux kernel source code for the same version

Question 12

Which of the filter keywords below could be used in the following command: tcpdump -i eth0 ____________ 203.0.113.8

Accepted Answer

A)  host 
B)  ip 
C)  src 
D)  dst 
E)  ipv6 
A)  host 
B)  ip 
C)  src 
D)  dst 
E)  ipv6

Question 13

A regular user has just run ./configure && make && make install to build and install a program. However, the installation fails. What could be done to install the program?

Accepted Answer

A)  Install the binaries manually with suinstall Install the binaries manually with suinstall 
B)  Run make install with root privileges Run make install with root privileges 
C)  Do not run ./configure in order to maintain the default configuration for correct installation Do not run ./configure in order to maintain the default configuration for correct installation 
D)  Rerun ./configure with a --prefix option where the user has permissions to write Rerun with a --prefix option where the user has permissions to write 
E)  Run make install_local to install into /usr/local/ make install_local to install into /usr/local/ 
A)  Install the binaries manually with suinstall Install the binaries manually with suinstall 
B)  Run make install with root privileges Run make install with root privileges 
C)  Do not run ./configure in order to maintain the default configuration for correct installation Do not run ./configure in order to maintain the default configuration for correct installation 
D)  Rerun ./configure with a --prefix option where the user has permissions to write Rerun with a --prefix option where the user has permissions to write 
E)  Run make install_local to install into /usr/local/ make install_local to install into /usr/local/

Question 14

In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

Accepted Answer

A)  sa1 
B)  sarmon 
C)  sarec 
D)  sadf 
E)  sarcron 
A)  sa1 
B)  sarmon 
C)  sarec 
D)  sadf 
E)  sarcron

Question 15

On a Linux node with multiple active networks interfaces, each having a default route to the Internet, which default route is preferred?

Accepted Answer

A)  The default route with the highest metric value 
B)  The default route with the highest MTU value 
C)  The default route with the lowest TTL value 
D)  The default route with the highest TTL value 
E)  The default route with the lowest metric value 
A)  The default route with the highest metric value 
B)  The default route with the highest MTU value 
C)  The default route with the lowest TTL value 
D)  The default route with the highest TTL value 
E)  The default route with the lowest metric value

Question 16

What is the purpose of an initramfs during the Linux system start?

Accepted Answer

A)  It loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel 
B)  It moves the kernel from normal system memory to initram memory to speed up kernel access 
C)  It copies the root file system's content to RAM to speed up the system and reduce writes to disk 
D)  It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk 
A)  It loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel 
B)  It moves the kernel from normal system memory to initram memory to speed up kernel access 
C)  It copies the root file system's content to RAM to speed up the system and reduce writes to disk 
D)  It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk

Question 17

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?

Accepted Answer

A)  It will force the removal of the symlinks in /etc/rcX.d/ even when the links are read only It will force the removal of the symlinks in even when the links are read only 
B)  It will remove both the symlinks in /etc/rcX.d/ and the init script in /etc/init.d/ It will remove both the symlinks in and the init script in 
C)  It will remove the init script in /etc/init.d/ and the symlinks in /etc/rcX.d/ and update the package information of installed files It will remove the init script in and the symlinks in and update the package information of installed files 
D)  It will force the removal of symlinks in /etc/rcX.d/ even if the corresponding init script still exists in /etc/init.d/ It will force the removal of symlinks in even if the corresponding init script still exists in 
A)  It will force the removal of the symlinks in /etc/rcX.d/ even when the links are read only It will force the removal of the symlinks in even when the links are read only 
B)  It will remove both the symlinks in /etc/rcX.d/ and the init script in /etc/init.d/ It will remove both the symlinks in and the init script in 
C)  It will remove the init script in /etc/init.d/ and the symlinks in /etc/rcX.d/ and update the package information of installed files It will remove the init script in and the symlinks in and update the package information of installed files 
D)  It will force the removal of symlinks in /etc/rcX.d/ even if the corresponding init script still exists in /etc/init.d/ It will force the removal of symlinks in even if the corresponding init script still exists in

Question 18

On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains the kernel configuration parameters?

Accepted Answer

A)  config-linux-3.4.50-11 
B)  config-3.4.50-11 
C)  system-3.4.50-11 
D)  vmlinuz-3.4.50-11 
E)  rc.config-3.4.50-11 
A)  config-linux-3.4.50-11 
B)  config-3.4.50-11 
C)  system-3.4.50-11 
D)  vmlinuz-3.4.50-11 
E)  rc.config-3.4.50-11

Question 19

What is the purpose of the command udevadm monitor?

Accepted Answer

A)  It listens to kernel events produced by a udev rule and prints information to the console 
B)  It monitors the /dev/ directory for new devices 
C)  It monitors the udev process and prints performance statistics to the console 
D)  It communicates with D-Bus to setup new devices 
A)  It listens to kernel events produced by a udev rule and prints information to the console 
B)  It monitors the /dev/ directory for new devices 
C)  It monitors the udev process and prints performance statistics to the console 
D)  It communicates with D-Bus to setup new devices

Question 20

The following is an excerpt from the output of tcpdump -nli eth1 :   Which network service or protocol was used?

Accepted Answer

A)  FTP 
B)  HTTP 
C)  SSH 
D)  DNS 
E)  DHCP 
A)  FTP 
B)  HTTP 
C)  SSH 
D)  DNS 
E)  DHCP

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

What component of a system does smartd monitor?

Fill in the blank. The users of the local network complain that name resolution is not fast enough. Which command shows the time taken to resolve a DNS query? (Specify the command without path.)

How can the label root be added to the ext4 filesystem on /dev/sda1 ?

A system has one hard disk and one CD writer which are both connected to SATA controllers. Which device represents the CD writer?

After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

Which of the following configuration files are used by tcpwrapper?

Which of the following commands creates a Btrfs subvolume named volume in /mnt ?

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

What information is found in the following excerpt from the file /proc/mdstat ?

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

Which of the filter keywords below could be used in the following command: tcpdump -i eth0 ____________ 203.0.113.8

A regular user has just run ./configure && make && make install to build and install a program. However, the installation fails. What could be done to install the program?

In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

On a Linux node with multiple active networks interfaces, each having a default route to the Internet, which default route is preferred?

What is the purpose of an initramfs during the Linux system start?

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?

On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains the kernel configuration parameters?

What is the purpose of the command udevadm monitor?

The following is an excerpt from the output of tcpdump -nli eth1 : Which network service or protocol was used?

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

What component of a system does smartd monitor?

Fill in the blank. The users of the local network complain that name resolution is not fast enough. Which command shows the time taken to resolve a DNS query? (Specify the command without path.)

How can the label root be added to the ext4 filesystem on /dev/sda1 ?

A system has one hard disk and one CD writer which are both connected to SATA controllers. Which device represents the CD writer?

After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

Which of the following configuration files are used by tcpwrapper?

Which of the following commands creates a Btrfs subvolume named volume in /mnt ?

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

What information is found in the following excerpt from the file /proc/mdstat ?

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

Which of the filter keywords below could be used in the following command: tcpdump -i eth0 ____________ 203.0.113.8

A regular user has just run ./configure && make && make install to build and install a program. However, the installation fails. What could be done to install the program?

In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

On a Linux node with multiple active networks interfaces, each having a default route to the Internet, which default route is preferred?

What is the purpose of an initramfs during the Linux system start?

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?

On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains the kernel configuration parameters?

What is the purpose of the command udevadm monitor?

The following is an excerpt from the output of tcpdump -nli eth1 : Which network service or protocol was used?

Entry Level Linux Essentials Certificate of Achievement

Linux Essentials Certificate Exam, version 1.6

LPI Level 1 Exam 101, Junior Level Linux Certification, Part 1 of 2

LPIC-1 Exam 101

LPI Level 1 Exam 102, Junior Level Linux Certification, Part 2 of 2

LPI Level 1

LPIC-2 Exam 202

LPIC-3 Exam 300: Mixed Environments

Security

LPIC-3 Virtualization & High Availability

LPIC-OT Exam 701: DevOps Tools Engineer

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