Practice MCQ Disc Operating System (DOS)

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4728 . The memory which allocates space for DOS and application is called
Options:a. Expanded memory b. Cache memory c. Virtual memory d. Conventional memory

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4827 . What you type at the DOS command prompt to return back to windows?
Options:a. Command b. Exit c. Quit d. Return

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4855 . Which file system DOS typically use?
Options:a. FAT 16 b. FAT 32 c. NTFS d. LMFS

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4876 . Essential files of MS DOS are
Options:a. Command . com b. Io.sys c. Msdos.sys d. All of above

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4922 . CHKDSK command
Options:a. Check the disk b. Dos command c. Give information about disk d. All of the above

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4958 . Essential files of DOS are
Options:a. Command.com and IO.Sys b. IO.Sys and DOS.Sys c. DOS.Sys and Command.com d. Autoexec.bat and Config.sys

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4959 . Which operating system does not support long file names?
Options:a. OS/2 b. Windows 98 c. DOS 6.2 d. Windows NT

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4960 . Which operating system uses short file names?
Options:a. Windows b. Unix c. DOS d. All of above

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4978 . The command refreshes the screen and places the cursor at the top left corner of screen
Options:a. CLS b. Clear c. Dir d. CHKDSK

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4979 . Which command will you use to display the system date?
Options:a. Date b. Ver c. Dir d. Format

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4980 . Which command is used to provide access to program located in other directory or disk?
Options:a. Tree b. Path c. Dir d. CD

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4981 . The �.can be defined as the entire windows display and can be envisioned as the electronic equivalent of your own desk�s surface
Options:a. Desktop b. Windows c. Dialog box d. None of above

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4985 . Which of the following command is used to ask you to confirm that you want to delete the directory?
Options:a. Deltree/f b. Erase *.* c. Deltree *.* d. Del *.*/p

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4987 . Which command is used to delete all the files from root directory of drive A?
Options:a. Del a: b. Del *.* c. Del A d. Erase *

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4988 . Which command used to delete all files from current directory?
Options:a. Del, ,b. Deltree/y * ,c. Del *.* , d. All of the above

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5066 . MS DOS was introduced in
Options:a. 1970 b. 1981 c. 1999 d. 2000

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6349     In MS-Dos 6.22, which part identifies the product uniquely  
Options:a.    MS b.    DOS c.    Ms-DOS d.    6.22

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6350     In Ms-Dos what command you will use to display system date?
Options:a.    Date command b.    Ver command c.    Disk command d.    Format command

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6351     While working with Ms-Dos which command transfers a specific file from one disk to another?
Options:a.    Copy b.    Diskcopy c.    Time d.    Rename

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6352     If you don’t know the current time, which command will you use to display
Options:a.    Copy b.    Ver c.    Time d.    Format

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6353     Which command divides the surface of the blank disk into sectors and assign a unique address to each one
Options:a.    Ver b.    Format c.    Fat d.    Chkdsk

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6354     Each time you turn on your computer, it will check on the control file
Options:a.    Command.com, io.sys b.    Command.com, date.com, dir.com c.    Command.com, io.sys, msdos.sys d.    Chkdsk.exe

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6355     If you need to duplicate the entire disk, which command will you use?
Options:a.    Copy b.    Diskcopy c.    Chkdsk d.    Format

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6356     Which of the following extensions suggest that the file is a backup copy
Options:a.    Bak b.    Bas c.    Com d.    Txt

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6357     Which command lists the contents of current directory of a disk
Options:a.    Copy b.    Tree c.    Cd d.    Dir

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6358 .Only filenames and extensions are to be displayed in wide format, which command you’ll use?
Options:a.    Dir/w b.    Dir a: c.    Dir/s d.    Dir/b

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6359 .    Which command displays all the files having the same name but different extensions?
Options:a.    Dir filename.* b.    Dir filename.ext c.    Dir *.sys d.    Dir *.ext

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6360 .    Which command displays only file and directory names without size, date and time information?
Options:a.    Dir/w b.    Dir a: c.    Dir /b d.    Dir /s

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6361 .    Which command displays comma for thousand separating on file size while listing?
Options:a.    Dir/w b.    Dir/s c.    Dir/b d.    Dir/c

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6362 .    Which command is used to display all the files having the (.exe) extension but different filename?
Options:a.    Dir filename.* b.    Dir filename.ext c.    Dir *.sys d.    Dir *.ext

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6363 .    Which command should be used to display all files within the specified subordinate directory of the subdirectory?
Options:a.    Dir pathname b.    Dir pathnamepathname c.    Dir / ch d.    Dir pathnamefilename

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6364 .    Which command displays the directory list including files in tree structure?
Options:a.    Dir/s/f b.    Tree/f c.    Tree/s/f d.    Dir/f

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6365 .    Which command will be used to display a file within the specified directory of pathname?
Options:a .    Dir pathname b .    Dir pathnamepathname c.    Dir/ch d.    Dir pathnamefilename

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6366 .    Which command creates a directory or subdirectory?
Options:a.    Dir b.    Mkdir c.    Md d.    Both b and c

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6367 Which command displays current directory name or change from one to another?
Options:a. Chdir b. Cd c. Mkdir d. Both a and b

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6368 Which command is used to delete the directory that is empty?
Options:a. Del *.* b. RD c. Erase d. MD

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6369 An entire path name, consisting of several sub-directory names can contain upto
Options:a. 13 character b. 36 character c. 63 character d. 53 character

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6370 In which year the first operating system was developed
Options:a. 1910 b. 1940 c. 1950 d. 1980

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6371 MS-DOS developed in
Options:a. 1991 b. 1984 c. 1971 d. 1961

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6372 Maximum length of DOS command using any optional parameter is
Options:a. 26 characters b. 87 characters c. 127 characters d. None of above

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6373 In which version of DOS. CHKDSK command has been changed to SCANDISK?
Options:a. 5.0 b. 6.2 c. 6.0 d. 6.2

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6374 CHKDSK command is used to
Options:a. Analyze the hard disk error b. Diagnose the hard disk error c. Report the status of files on disk d. All of the above

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6375 Which file is the batch file that is read while booting a computer?
Options:a. Autoexec.bat b. Auto-batch c. Autoexecutive.bat d. Auto.bat

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6376 Which command is used to backup in DOS 6+ Version
Options:a. BACKUP b. MSBACKUP c. MSBACKEDUP d. All of the above

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6377 Copy and Xcopy are same in the sense
Options:a. Both are internal command of DOS b. Both are external commands of DOS c. Both can be used to copy file or group of files d. Both a and b

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6378 . Which command be used to clear the screen and display the operating system prompt on the first line of the display?
Options:a. Cd b. Md c. Rename d . cls

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6380 . internal command in Dos are
Options:a. Cls, rd label b. Dir, ren, sys c. Time, type, dir d. Del, disk copy, label

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6381 . Which command is used to copy files?
Options:a. Copy b. Diskcopy c. Type d. All of the above

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6382 . To copy the hidden system files of DOS to another disk you can use the command
Options:a. Copy b. Ren c. Sys d. Diskcopy

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6383 . Disk copy command in DOS is used to
Options:a. Copy a file b. Copy contents of one floppy disk to another c. Copy contents of CD-ROM to another d. All of the above

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