Disk Operating System (DOS) – Section 3


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1. Which DOS command is used to remove and scan memory and disk from viruses?

A. MSAV
B. DEFRAG
C. SCANDISK
D. VSAFE
E. None of the above

Correct Answer: A. MSAV
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2. To conserve battery power on your laptop computer. What DOS v6.x command should you use?

A. Powermon.exe
B. Power.exe
C. Idel.com
D. Pw.sys
E. None of the above

Correct Answer: B. Power.exe
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3. The Fdisk command in DOS _____ .

A. Partitions the hard drive for use
B. Fixes erroneous hard drive
C. Formats data sectors on a hard drive
D. Checks hard drive for lost clusters
E. None of the above

Correct Answer: A. Partitions the hard drive for use
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4. How would you allow device drivers and TSR’s to be loaded into Upper Memory Blocks?

A. DOS=High
B. Devicehigh=
C. Loadhigh=
D. DOS=UMB
E. None of the above

Correct Answer: D. DOS=UMB
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5. While working with MS-DOS, which command is used to restore only those files modified since the last backup, from the drive A to the currently logged drive or directory?

A. RESTORE A: *.*/S
B. RESTORE A: *.*/M
C. RESTORE A: *.*/N
D. RESTORE A: *.*/L
E. None of the above

Correct Answer: B. RESTORE A: *.*/M
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