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Computer Science
Disk Operating System (DOS)
Quiz 6
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Q.1
Which is valid extension that user creates on operating system?
Exe
Com
Sys
Bat
Q.2
Which of the following file names are invalid in MSDOS?
MYFILE.DOS
CHECK$.(1)
Verified.###
Qwerty.1?3
Q.3
Which of the following statements in regard to directories is false?
Directories can exist inside directories
The root directory is always at the highest level
Directories with files can be deleted
Directories cannot be renamed
Q.4
Which of the following statements is true in regard to diskcopy?
Copy and discopy are same
Discopy is a built in command in dos
Diskcopy can be used on hard disks
Diskcopy can be used with a floppy and a hard disk
Q.5
Which switch should be used in the DIR command to view files in all directories?
/p
/w
/s
/l
Q.6
Which command is used to delete all the files in the root directory of drive a
A:\del
Del *.* a:
Del a:\
Erase *.*
Q.7
Which command in DOS can be used to recover accidentally deleted files?
UNDELETE
DELETE/CANCEL
RESTORE
RECOVER
Q.8
Which command is used to display a list of deleted files that DOS can undelete?
Undelete *.*
Undelete/all
Undelete/list
None of the above
Q.9
Which command is used to undelete delete a bunch of files with extension doc that you have just deleted
Undelete
Undelete *.doc
Undelete/all
All of the above
Q.10
Which file in MSDOS contain internal command that are loaded during booting process?
Io.sys
Msdos.sys
Command.com
Config.sys
Q.11
Which command in DOS is used to display the version of MSDOS?
VERSION
VERIFY
VER
VERSN
Q.12
Which command is used to copy all files from drive a with extension .txt to the currently logged drive and directory?
Copy a. *.txt
Copy *.txt a:
Copy *.txt c:
Copy *.txt all.txt
Q.13
Which command is used to create root directory and FAT on disk?
Chkdsk
Command.com
Format
Fat
Q.14
Which is the valid filename assign in MS-DOS?
Ram*.txt
Ram?.doc
Ram_$.txt
None of above
Q.15
Which command is used to delete all the files extension .txt on the current drive and directory?
Del .txt
Erase .txt
Del *.txt
Del *.*/p
Q.16
What is the name of the batch file that is automatically run when MSDOS is booted?
Run.bat
Config.sys
Config.bat
Autoexec.bat
Q.17
What is the switch that is used to make sure that the copy command copied files correctly
/a
/c
/s
/v
Q.18
What will be the output of the command prompt $l$p$g?
C:\>
C:\>>
C:
Q.19
Which among the following are the best tools for fixing errors on disks?
Fdisk
Scandisk
Chkdsk
Fixdsk
Q.20
Which command can be used to create the disk's tracks and sectors?
Fdisk
Format
Chkdsk
Attrib
Q.21
In DOS, what key would you press to step through the Config.sys and Autoexec.bat?
F1
F3
F5
F8
None of the above
Q.22
Which command is used to delete the directory and all its contents in one step?
DEL *.*
RD
DELTREE
CD
None of the above
Q.23
The COPY command of MS-DOS, is used to:
copying files from one floppy disk to another floppy disk
copying one or more files on the same disk or directory
copying two or more files into a single file
All of the above
None of the above
Q.24
Which internal DOS command clears the screen and places the DOS prompt in the upper left corner of the screen?
cls
close
quit
exit
None of the above
Q.25
After searching the current directory where does command.com search next?
C:DOSUTILITIES
Config.sys
Autoexec.bat
The Path Statement
None of the above
Q.26
Which of the following filename extension suggests that the file is a backup copy of another file?
BAK *
BAS
COM
TXT
None of the above
Q.27
While working with MS-DOS, which command is used to compare the disk in drive A with the disk in drive B, specifying to compare only first side of each disk, and only the first 8 sectors of each track?
DISKCOPY A: B:/8
DISKCOMP A: B:/l/8
DISKCOMP A: B:/8
DISKCOMP A: B:/l
None of the above
Q.28
To view any currently running Terminate Stay Resident (TSR's) programs you could type:
Memory
MEM
SYS /M
MEMMAKER
None of the above
Q.29
While working with MS-DOS, which command will you use to display the version?
DATE Command
VER Command
DISK Command
FORMAT Command
None of the above
Q.30
Which command is executed before the others when a computer is first turned on?
Device=c:emm386.exe
Device=c:doshimem.sys
Prompt=$p$g
Patch c:dos
None of the above
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