Free Linux Foundation Certified System Administrator Exam LFCS Exam Practice Test

Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)

• usermod
  
• passwd
  
• chattr
  
• chage
  
• chsh
  

Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?

• chmod u=rwx,go=rx /bin/foo
  
• chmod o+rwx,a+rx /bin/foo
  
• chmod 577 /bin/foo
  
• chmod 775 /bin/foo
  

Which of the following commands is used to change options and positional parameters for a running Bash?

• history
  
• set
  
• bashconf
  
• setsh
  
• envsetup
  

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
  

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
  

What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?

• 9
  
• 19
  
• 49
  
• 99
  

Which of the following commands will help identify a broken router between the local and the remote machine?

• ps
  
• netstat
  
• nslookup
  
• ifconfig
  
• traceroute
  

Which of the following commands will output all of the lines with the name Fred in upper or lower case but not the word red from the file data_file? (Choose two)

• grep -v fred data_file
  
• grep '[f]red' data_file
  
• egrep fred data_file
  
• grep '[Ff]red' data_file
  
• grep -i fred data_file
  

What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

• route del default
  
• ifconfig unset default
  
• netstat -r default
  
• ip route del default
  
• sysctl ipv4.default_gw=0
  

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