What are the solutions for the spreadsheet formulae, printer installation, password security, and monitor vs. printer output questions?

Here are the solutions to the questions.

6. Spreadsheet Formulae

Formula in F10	Formula in J20
=D10*E10	=H20*I20
=A$25	=E$25
=$D$13	=$D$13

7. Wallace, a computer technician installed a new printer.

a) A restart was necessary to allow the operating system to load the new printer drivers and integrate the device into the system's configuration.

b) Two reasons a computer may be restarted are:

• To apply system updates or new software installations.
• To resolve system errors or improve performance by clearing temporary memory.

8. A password is a secret code for protecting data.
Two features of a good password are:

• It should be long and complex, typically containing a mix of uppercase letters, lowercase letters, numbers, and symbols.
• It should be unique and not easily guessable, avoiding personal information or common words.

9. Differentiate a monitor and a printer in terms of information output.
A monitor provides soft copy output, which is temporary and displayed visually on a screen. A printer provides hard copy output, which is permanent and physically printed on paper.