Which one of the following statements concerning Linux passwords is true?
A. All passwords can be decrypted using the system administrator's master password.
B. Passwords may never start with a non-letter.
C. Users cannot change their password once it has been set.
D. Passwords are only stored in encrypted form.
E. Passwords may be at most six characters long.
Which one of the following statements concerning the General Public License (GPL) is true?
A. The GPL is designed to ensure that the source code of a software remains freely available.
B. The GPL is identical to the BSD license.
C. GPL software may never be sold for money.
D. If you change a program you received under the GPL, you must send your changes to the original author for approval.
E. GPL software may not be used to run nuclear reactors or air traffic control systems.
Which of the following is a Linux based operating system for use on mobile devices?
A. iOS
B. CentOS
C. Android
D. Debian
Which of the following commands can be used to create a file?
A. touch
B. build
C. nico
D. create
E. mkfile
Which of the following are correct commands for changing the current directory to the user's home? (Choose TWO answers)
A. cd /home
B. cd ~
C. cd ..
D. cd
E. cd /
Which of the following commands will display a list of all files in the current directory, including those that may be hidden?
A. ls -a
B. ls --hidden
C. ls -h
D. ls a
Which function does a shell program serve?
A. It provides a graphical environment.
B. It is responsible for establishing a connection to another computer.
C. It receives user commands and executes them.
D. It is responsible for logging a user into the system.
Which statements about the directory /etc/skel are correct? (Choose TWO answers)
A. The personal settings of root are in this directory.
B. The files from the directory are copied to the home directory of the new user when starting the system.
C. The files from the directory are copied to the home directory of a new user when the account is created.
D. The directory contains a default set of configuration files used by the useradd command.
E. The directory contains the global settings for the Linux system.
When typing a long command line at the shell, what single character can be used to split a command
across multiple lines?
What two character sequence is present at the beginning of an interpreted script? (Please specify the
TWO correct characters only)
