121⟩ In which year the first operating system was developed? a. 1910 b. 1940 c. 1950 d. 1980
c. 1950
DOS (Disk Operating System)
Home Operating System DOS (Disk Operating System)
“DOS related Frequently Asked Questions by expert members with experience in Disk Operating System. These questions and answers will help you strengthen your technical skills, prepare for the new job test and quickly revise the concepts”
216 DOS (Disk Operating System) Questions And Answers
122⟩ MS-DOS developed in a. 1991 b. 1984 c. 1971 d. 1961
b. 1984
123⟩ Maximum length of DOS command using any optional parameter is a. 26 characters b. 87 characters c. 127 characters d. None of above
c. 127 characters
124⟩ Which file is the batch file that is read while booting a computer? a. Autoexec.bat b. Auto-batch c. Autoexecutive.bat d. Auto.bat
a. Autoexec.bat
125⟩ Which command be used to clear the screen and display the operating system prompt on the first line of the display? a. Cd b. Md c. Rename d. cls
d. cls
126⟩ Copy and Xcopy are same in the sense 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
c. Both can be used to copy file or group of files
127⟩ Internal command in Dos are a. Cls, rd label b. Dir, ren, sys c. Time, type, dir d. Del, disk copy, label
c. Time, type, dir
128⟩ Which command is used to copy files? a. Copy b. Diskcopy c. Type d. All of the above
a. Copy
129⟩ To copy the hidden system files of DOS to another disk you can use the command a. Copy b. Ren c. Sys d. Diskcopy
c. Sys
130⟩ Which command is used to backup in DOS 6+ Version? a. BACKUP b. MSBACKUP c. MSBACKEDUP d. All of the above
b. MSBACKUP
131⟩ SYS command is used to a. Copy DOS system files to new disk b. Copy DOS configuration files to a new disk c. Update the DOS system files d. None of above
a. Copy DOS system files to new disk
132⟩ The command used to copy a file named temp.doc from drive C to drive A is a. Copy temp.doc to a b. Copy ctemp.doc a c. Copy c a d. Copy temp a c
b. Copy c:temp.doc a:
133⟩ External command in DOS are a. Copy, edit, sys, format b. Edit, sys, chkdsk c. Chkdsk, prompt, date d. Sys, ver, vol
b. Edit, sys, chkdsk
134⟩ Which keys can be pressed quit without saving in DOS a. Ctrl + A b. Ctrl + B c. Ctrl + C d. Ctrl + D
c. Ctrl + C
135⟩ Disk copy command in DOS is used to 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
b. Copy contents of one floppy disk to another
136⟩ Which command is used to get the current date only? a. Date b. Time c. Second d. All of the above
a. Date
137⟩ DEL command is used to a. Delete files b. Delete directory c. Delete labels d. Delete contents of file
a. Delete files
138⟩ Which command be used to ask you to confirm that you want to delete the directory? a. Deltree b. Deltree/f c. Del *.*/p d. Erase *.*
c. Del *.*/p
139⟩ In which version of DOS. CHKDSK command has been changed to SCANDISK? a. 5.0 b. 6.2 c. 6.0 d. 6.2
d. 6.2
140⟩ CHKDSK command is used to 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
d. All of the above
