Free Linux Foundation Certified System Administrator Exam LFCS Exam Practice Test

Which file contains the date of the last change of a user's password?

• /etc/gshadow
  
• /etc/passwd
  
• /etc/pwdlog
  
• /etc/shadow
  
• /var/log/shadow
  

In which file, if present, must all users be listed that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

In order to display all currently mounted filesystems, which of the following commands could be used? (Choose TWO correct answers.)

• cat /proc/self/mounts
  
• free
  
• mount
  
• lsmounts
  
• cat /proc/filesystems
  

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
  

Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

• SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;
  
• SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;
  
• COUNT(SELECT order_type FROM orders);
  
• SELECT COUNT(*) FROM orders ORDER BY order_type;
  
• SELECT AUTO_COUNT FROM orders COUNT order_type;
  

Creating a hard link to an ordinary file returns an error. What could be the reason for this?

• The source file is hidden.
  
• The source file is read-only.
  
• The source file is a shell script.
  
• The source file is already a hard link.
  
• The source and the target are on different filesystems.
  

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

• 0
  
• 1
  
• 3
  
• 5
  
• 6
  

What two character sequence is present at the beginning of an interpreted script? (Please specify the TWO correct characters only)

Which of the following commands will print the last 10 lines of a text file to the standard output?

• cat -n 10 filename
  
• dump -n 10 filename
  
• head -n 10 filename
  
• tail -n 10 filename
  

Which of the following commands can be used to download the RPM package kernel without installing it?

• yum download --no-install kernel
  
• yumdownloader kernel
  
• rpm --download --package kernel
  
• rpmdownload kernel