Question 1 : What is vim?

A virtual machine.
A hypervisor
A text editor.
A command to save a file.

Question 2 : Which command only saves the file?

:w
:q
:wq
:q!

Question 3 : Which command ignores warning and quit without saving?

:w
:q
:wq
:q!

Question 4 : Which command displays all contents of a file?

head
cat
tail
show

Question 5 : Which command saves and quit?

:w
:q
:wq
:q!