Which of the following sequences in the vi editor saves the opened document and exits the
editor? (Choose TWO correct answers.)

Which of the following commands lists all defined variables and functions within Bash?

When starting a program with the nice command without any additional parameters, which
nice level is set for the resulting process?

Which of the following commands will reduce all consecutive spaces down to a single
space?

Which character, added to the end of a command, runs that command in the background as
a child process of the current shell?

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

output?

Which of the following commands prints a list of usernames (first column) and their primary
group (fourth column) from the /etc/passwd file?

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

orders?

Which of the following signals is sent to a process when the key combination CTRL+C is

pressed on the keyboard?

What happens after issuing the command vi without any additional parameters?