What is the shell in the context of command line usage?

• A graphical user interface

• A program that takes keyboard commands and passes them to the operating system

• A type of hardware component

• A network protocol

What does "bash" stand for?

• Basic Shell

• Bourne Again SHell

• Binary Access Shell

• Built-in Advanced Shell

What is a terminal emulator used for?

• To play video games

• To interact with the shell using a graphical user interface

• To edit images

• To browse the internet

What does a shell prompt typically include?

• The current time and date

• The username and machine name, followed by the current working directory and a dollar sign

• A list of installed programs

• The system's IP address

What does a pound sign ("#") at the end of a shell prompt indicate?

• The system is offline

• The terminal session has superuser privileges

• The shell is in sleep mode

• The shell is running a script

What is the function of the up-arrow key in the command line interface?

• It deletes the previous command.

• It repeats the last command entered.

• It opens a new terminal window.

• It saves the current command.

What is the term used for the feature that allows recalling previous commands in the terminal?

• Command recall

• Command memory

• Command history

• Command storage

Which key combination is NOT used for copying and pasting in the terminal window?

• Ctrl-c and Ctrl-v

• Middle mouse button

• Left mouse button and drag

• Double-clicking a word

What is the focus policy setting that requires clicking on a window to make it active?

• Focus follows mouse

• Click to focus

• Hover to focus

• Auto-focus

Which command is used to display the current time and date in Linux?

• cal

• df

• date

• free