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Disc Operating System (DOS)

Disc Operating System (DOS)
Which of the following file names are invalid in MSDOS?

Verified.###
MYFILE.DOS
Qwerty.1?3
CHECK$.(1)

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Disc Operating System (DOS)
When you create a subdirectory within a directory, the process is known as _____

backing
directing
making
nesting

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Disc Operating System (DOS)
SYS command is used to

None of the listed here
Copy DOS system files to new disk
Update the DOS system files
Copy DOS configuration files to a new disk

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Disc Operating System (DOS)
You suspect that your automatic modem dialer is not working correctly. Which of the following commands will manually dial the number 123-4567?

ATDT1234567
AT1234567DL
ATM 1234567
AT1234567

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Disc Operating System (DOS)
The _____ switch instructs DOS to display the directory list in a wide format.

/W
/B
/O
/P

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Disc Operating System (DOS)
DOS system file consists of

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

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