Explore topic-wise MCQs in Computer Science.

This section includes 181 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.

151.

Full form of MS-DOS is

A. Micro System Disk Operating System
B. Micro Simple Disk Operating System
C. Micro Soft Disk Operating System
D. Micro Sort Disk Operating System
Answer» D. Micro Sort Disk Operating System
152.

While working with MS-DOS, which command is used to copying the files to transfer from one PC to another one?

A. Rename
B. Path
C. Dir
D. Copy
Answer» E.
153.

To copy the file command.com from drive c: to drive a:

A. Drive c: copy drive a:\command.com
B. C:A: copy command.com
C. Copy c:\command.com a:
D. Both b and c
Answer» D. Both b and c
154.

In MS-Dos what command you will use to display system date?

A. Date command
B. Ver command
C. Disk command
D. Format command
Answer» B. Ver command
155.

With DOS, you may use the `*' and `?':

A. When changing the default settings
B. To represent unspecified characters in a filename
C. Instead of wildcard characters
D. In the extension but not in the drive name or the file name
Answer» C. Instead of wildcard characters
156.

Which command displays the list of all previous commands entered by the used?

A. COMMANDS/ALL
B. KEYDOS
C. DOSKEY
D. DIR/ALL
Answer» D. DIR/ALL
157.

While working with MS-DOS, which command is used to rename a file named file1.doc to file2.doc from a different directory called dir1?

A. Ren2.doc \dir\file1.doc
B. Ren file1.doc file2.doc
C. Ren .doc\dir\.doc
D. Ren \dir1\file1.doc file2.doc
Answer» E.
158.

Which was the last version of MSDOS that was released separately?

A. 5.0
B. 6.0
C. 6.11
D. 6.22
Answer» E.
159.

Which of the following file names are invalid in MSDOS?

A. MYFILE.DOS
B. CHECK$.(1)
C. Verified.###
D. Qwerty.1?3
Answer» E.
160.

Which command is used to display a list of deleted files that DOS can undelete?

A. Undelete *.*
B. Undelete/all
C. Undelete/list
D. None of the above
Answer» D. None of the above
161.

Which command in DOS is used to display the version of MSDOS?

A. VERSION
B. VERIFY
C. VER
D. VERSN
Answer» D. VERSN
162.

An entire path name, consisting of several sub-directory names can contain upto

A. 13 character
B. 36 character
C. 63 character
D. 53 character
Answer» D. 53 character
163.

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
Answer» B. Auto-batch
164.

Which command displays all the files having the same name but different extensions?

A. Dir filename.*
B. Dir filename.ext
C. Dir *.sys
D. Dir *.ext
Answer» B. Dir filename.ext
165.

Which command displays the directory list including files in tree structure?

A. Dir/s/f
B. Tree/f
C. Tree/s/f
D. Dir/f
Answer» C. Tree/s/f
166.

DEL command is used to

A. Delete files
B. Delete directory
C. Delete labels
D. Delete contents of file
Answer» B. Delete directory
167.

Internal command in Dos are

A. Cls, rd label
B. Dir, ren, sys
C. Time, type, dir
D. Del, disk copy, label
Answer» D. Del, disk copy, label
168.

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 c:\temp.doc a:
C. Copy c: a:
D. Copy temp a: c:
Answer» C. Copy c: a:
169.

The maximum length in DOS commands is

A. 80 chars
B. 127 chars
C. 100 chars
D. 8 chars
Answer» C. 100 chars
170.

Which command is used to make a new directory?

A. Md
B. Cd
C. Rd
D. None of above
Answer» B. Cd
171.

Which command is used to change the file name?

A. Ren
B. Rename
C. Both of above
D. None of above
Answer» D. None of above
172.

The deleted file in MS-DOS can be recovered if you use the command mention below immediately, the command is:

A. DO NOT DELETE
B. NO DELETE
C. UNDELETE
D. ONDELETE
Answer» D. ONDELETE
173.

In MS-Dos 6.22, which part identifies the product uniquely

A. MS
B. DOS
C. MS-DOS
D. 6.22
Answer» E.
174.

5. As per symbolic notation of DOS, which of the following indicates the ROOT directory

A. *
B. >
C. /
D. None of the above
Answer» E.
175.

Which of the following command display the name of files in sorted order?

A. Dir/o:n
B. Dir/so
C. Dir/an
D. Dir/ah
Answer» B. Dir/so
176.

While working with MS-DOS, which command is used to more file from one directory to another?

A. Rename
B. Copy
C. Move
D. Cp
Answer» D. Cp
177.

Which type of command in DOS needs additional files for their execution?

A. Internal commands
B. External commands
C. Batch commands
D. Redirectors
Answer» C. Batch commands
178.

Which is valid extension that user creates on operating system?

A. Exe
B. Com
C. Sys
D. Bat
Answer» E.
179.

Which command is used to delete all the files in the root directory of drive a

A. A:\del
B. Del *.* a:
C. Del a:\
D. Erase *.*
Answer» D. Erase *.*
180.

Which command in DOS can be used to recover accidentally deleted files?

A. UNDELETE
B. DELETE/CANCEL
C. RESTORE
D. RECOVER
Answer» B. DELETE/CANCEL
181.

Which two of the following DOS commands are used to display or set the date and time of your computer's infernal clock?

A. VER
B. HOUR
C. DATE
D. DAY
E. None of the above
Answer» D. DAY