Question 1

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

Accepted Answer

A)  dd if=/dev/zero of=/dev/sda bs=512 
B)  dd if=/dev/zero of=/dev/sda bs=512 count=1 
C)  dd if=/dev/zero of=/dev/sda bs=440 count=1 
D)  dd if=/dev/zero of=/dev/sda bs=440 
A)  dd if=/dev/zero of=/dev/sda bs=512 
B)  dd if=/dev/zero of=/dev/sda bs=512 count=1 
C)  dd if=/dev/zero of=/dev/sda bs=440 count=1 
D)  dd if=/dev/zero of=/dev/sda bs=440

Question 2

Which command can be used to delete a group from a Linux system?

Accepted Answer

A)  groupdel 
B)  groupmod 
C)  groups 
D)  groupedit 
A)  groupdel 
B)  groupmod 
C)  groups 
D)  groupedit

Question 3

What is true regarding the command userdel --force --remove bob? (Choose TWO correct choices.)

Accepted Answer

A)  The user bob is removed from the system's user database. 
B)  The user bob's home directory is removed. 
C)  The locate database is updated to drop files owned by bob. 
D)  All files owned by bob are remove from all mounted filesystems. 
E)  In case bob was the last member of a group, that group is deleted. 
A)  The user bob is removed from the system's user database. 
B)  The user bob's home directory is removed. 
C)  The locate database is updated to drop files owned by bob. 
D)  All files owned by bob are remove from all mounted filesystems. 
E)  In case bob was the last member of a group, that group is deleted.

Question 4

Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?

Accepted Answer

A)  tcpd 
B)  inetd 
C)  fingerd 
D)  mountd 
E)  xinetd 
A)  tcpd 
B)  inetd 
C)  fingerd 
D)  mountd 
E)  xinetd

Question 5

What does the symbol within regular expressions represent?

Accepted Answer

A)  Match the preceding qualifier one or more times. 
B)  Match the preceding qualifier zero or more times. 
C)  Match the preceding qualifier zero or one times. 
D)  Match a literal character. 
A)  Match the preceding qualifier one or more times. 
B)  Match the preceding qualifier zero or more times. 
C)  Match the preceding qualifier zero or one times. 
D)  Match a literal character.

Question 6

Why is the correct configuration of a system's time zone important?

Accepted Answer

A)  Because the conversion of Unix timestamps to local time relies on the time zone configuration. 
B)  Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created. 
C)  Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone. 
D)  Because NTP chooses servers nearby based on the configured time zone. 
A)  Because the conversion of Unix timestamps to local time relies on the time zone configuration. 
B)  Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created. 
C)  Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone. 
D)  Because NTP chooses servers nearby based on the configured time zone.

Question 7

What is NOT contained in the locale setting of the operating system?

Accepted Answer

A)  currency symbol 
B)  language 
C)  timezone 
D)  thousands separator 
A)  currency symbol 
B)  language 
C)  timezone 
D)  thousands separator

Question 8

Which command chain will count the number of regular files with the name of foo.txt within /home?

Accepted Answer

Question 9

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

Accepted Answer

A)  apt-get update 
B)  apt-get upgrade 
C)  apt-cache update 
D)  apt-get refresh 
E)  apt-cache upgrade 
A)  apt-get update 
B)  apt-get upgrade 
C)  apt-cache update 
D)  apt-get refresh 
E)  apt-cache upgrade

Question 10

What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any path.)

Accepted Answer

The answer of What is the default name of the...

Question 11

The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section?

Accepted Answer

A) It is placed in curly brackets as in Section SectionName { ... }. B) It is placed between a line containing Section "SectionName" and a line containing EndSection. C) It is placed between the tags

and

D) It is placed after the row [SectionName]. E) It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character. A) It is placed in curly brackets as in Section SectionName { ... }. B) It is placed between a line containing Section "SectionName" and a line containing EndSection. C) It is placed between the tags

and

D) It is placed after the row [SectionName]. E) It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character.

Question 12

What is the output of the following command? echo "Hello World" | tr -d aieou

Accepted Answer

A)  Hello World 
B)  eoo 
C)  Hll Wrld 
D)  eoo Hll Wrld 
A)  Hello World 
B)  eoo 
C)  Hll Wrld 
D)  eoo Hll Wrld

Question 13

What is the purpose of the iconv command?

Accepted Answer

A)  It converts bitmap images from one format to another such as PNG to JPEG. 
B)  It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS). 
C)  It displays additional meta information from icon files ending in .ico. 
D)  It changes the mode of an inode in the ext4 file system. 
E)  It converts files from one character encoding to another. 
A)  It converts bitmap images from one format to another such as PNG to JPEG. 
B)  It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS). 
C)  It displays additional meta information from icon files ending in .ico. 
D)  It changes the mode of an inode in the ext4 file system. 
E)  It converts files from one character encoding to another.

Question 14

Which of the following commands will set the variable text to olaf is home? (Choose two)

Accepted Answer

A)  text=olaf\ is\ home 
B)  text=$olaf is home 
C)  $text='olaf is home' 
D)  text=='olaf is home' 
E)  text="olaf is home" 
A)  text=olaf\ is\ home 
B)  text=$olaf is home 
C)  $text='olaf is home' 
D)  text=='olaf is home' 
E)  text="olaf is home"

Question 15

Which of the following statements is correct regarding the command foo 1> bar?

Accepted Answer

A)  The stdout from the command foo is appended to the file bar. 
B)  The stdout from the command foo overwrites the file bar. 
C)  The command foo receives its stdin from the file bar. 
D)  The command foo receives its stdin from the stdout of the command bar. 
E)  The stderr from the command foo is saved to the file bar. 
A)  The stdout from the command foo is appended to the file bar. 
B)  The stdout from the command foo overwrites the file bar. 
C)  The command foo receives its stdin from the file bar. 
D)  The command foo receives its stdin from the stdout of the command bar. 
E)  The stderr from the command foo is saved to the file bar.

Question 16

Which command makes the shell variable named VARIABLE visible to subshells?

Accepted Answer

A)  export $VARIABLE 
B)  export VARIABLE 
C)  set $VARIABLE 
D)  set VARIABLE 
E)  env VARIABLE 
A)  export $VARIABLE 
B)  export VARIABLE 
C)  set $VARIABLE 
D)  set VARIABLE 
E)  env VARIABLE

Question 17

Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)

Accepted Answer

/ usr /bin

Question 18

What does the command mount -a do?

Accepted Answer

A)  It ensures that all file systems listed with the option noauto in /etc/fstab are mounted. 
B)  It shows all mounted file systems that have been automatically mounted. 
C)  It opens an editor with root privileges and loads /etc/fstab for editing. 
D)  It ensures that all file systems listed with the option auto in /etc/fstab are mounted. 
E)  It ensures that all file systems listed in /etc/fstab are mounted regardless of their options. 
A)  It ensures that all file systems listed with the option noauto in /etc/fstab are mounted. 
B)  It shows all mounted file systems that have been automatically mounted. 
C)  It opens an editor with root privileges and loads /etc/fstab for editing. 
D)  It ensures that all file systems listed with the option auto in /etc/fstab are mounted. 
E)  It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.

Question 19

What is the purpose of the Filesystem Hierarchy Standard?

Accepted Answer

A)  It is a security model used to ensure files are organized according to their permissions and accessibility. 
B)  It provides unified tools to create, maintain and manage multiple filesystems in a common way. 
C)  It defines a common internal structure of inodes for all compliant filesystems. 
D)  It is a distribution neutral description of locations of files and directories. 
A)  It is a security model used to ensure files are organized according to their permissions and accessibility. 
B)  It provides unified tools to create, maintain and manage multiple filesystems in a common way. 
C)  It defines a common internal structure of inodes for all compliant filesystems. 
D)  It is a distribution neutral description of locations of files and directories.

Question 20

Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct choices.)

Accepted Answer

A)  Year 
B)  Minute 
C)  Username 
D)  Command 
A)  Year 
B)  Minute 
C)  Username 
D)  Command

Exam 1: Linux Foundation Certified System Administrator