1) Which command used displays current terminal?
Correct Answer: $ tty
2) Which command used reveals the current logged in user?
Correct Answer: $ whoami
3) Which command used displays calender of current month?
Correct Answer: $ cal
4) Which command reports the full path to the current directory?
Correct Answer: PWD [option]
Explanation:

.

5) Which one of the following is the directory separator in Linux?
Correct Answer: "/"