Disk Operating System (DOS) Question:

Which is not a system tool?

a. Folder
b. Backup
c. Scandisk
d. Format

a. Folder

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To properly exit Windows: a. Click the stop button on the desktop b. Click the exit button on the desktop c. Select shut down from Start menu d. None of above	A utility that can be used to minimize the number of fragmented files and enhance the speed: a. Disk space b. Defrag c. Scandisk d. Double space