__________ helps to prevent one task from accidentally or intentionally changing the contents of memory assigned to another task.

The ________ feature enables you to display two documents on the same screen

Fill in the blank(s) with correct word

Which of the following is an indication a system has become infected by malware?

A. The browser is redirected from the chosen website. B. When typing certain keys, numbers are displayed instead of letters. C. The computer randomly has a bluescreen error. D. The screen is darker than usual.