1. UNIX is written in C and it can run on a range of computers from microprocessor to the largest mainframe, so it has the characteristic of: a. Availability b. Acceptability c. Portability d. Reliability 2. The UNIX utilities (rm, cat, mv, cp) are considered: a. file management utilities b. process management utilities c. printing utilities d. user management utilities 3. The kernel of the UNIX operating system: a. interprets and executes user typed b. performs all hardware accesses command c. supports a custom environment for each d. presents each user with a prompt user 4. The date UNIX operating system command, displays: a. all the users currently logged into the b. the calendar for a specified month system or a year c. your compilation errors in a specific d. the system date (current) and the date time 5. The tty UNIX operating system command is used to: a. show the name of the terminal you are b. copy its argument back to the using terminal c. set or unset selected terminal 1/0 d. display online documentation on options the terminal