Disk Operating System (DOS) - Section 3 Multiple Questions and Answers.




11.While working with MS-DOS, which command is used to combine FILE1 plus FILE2 into new file named FILE3?
A. COPY FILE3 FILE1+FILE2
B. COPY FILE1+FILE2 FILE3
C. COPY FILE1+FILE2+FILE3
D. COPY FILE2 FILE1+FILE3

12.When MS-DOS formats a disk, it automatically creates the main directory on your disk, which is called the _____ directory.
A. main
B. root
C. area
D. border

13.Which command will prevent subsequent changes to the file CBT.EXE?
A. RENAME + r CBT.EXE
B. ATTRIB + r CBT.EXE
C. COPY + r CBT.EXE
D. MODE + r CBT.EXE

14.Which command will be used to display a column file compression ratio for each file of Double spaced disk?
A. DIR/W
B. DIR/S
C. DIR/B
D. DIR /C (/C switch introduced in DOS version 6.00)

15.The COPY command of MS-DOS, is used to:
A. copying files to transfer from one PC to another
B. copying files for safe keeping or for record purpose
C. copying files from the hard disk to floppy disks
D. All of the above

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