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Disc Operating System (DOS)

Disc Operating System (DOS)
Which of the following filename extension suggests that the file is a backup copy of another file?

COM
TXT
BAK *
BAS

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Disc Operating System (DOS)
You can copy command.com to your disk from hard disk

true
false

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Disc Operating System (DOS)
To organize files on a disk, MS-DOS separates them into areas called _____

areas
buckets
area directories
directories

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Disc Operating System (DOS)
DOS system file consists of

SYS.COM,IBMBIO.COM,IBMDOS.COM
None of these
IBMBIO.COM, IBMDOS.COM, COMMAND.COM
COMMAND.COM, IBMBIO.COM, FORMAT.COM

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Disc Operating System (DOS)
External command in DOS are

Sys, ver, vol
Edit, sys, chkdsk
Copy, edit, sys, format
Chkdsk, prompt, date

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Disc Operating System (DOS)
Which keys can be pressed quit without saving in DOS

Ctrl + A
Ctrl + C
Ctrl + B
Ctrl + D

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MORE MCQ ON Disc Operating System (DOS)

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