1. In MS-Dos 6.22, which part
identifies the product uniquely
a. MS
b. DOS
c. Ms-DOS
Correct Answer: d.
6.22
Explanation: MS stands for Microsoft, DOS is
the name of operating system Disk Operating System, 6.22 is the version number
that identifies the product.
2. In Ms-Dos what command you will
use to display system date?
a. Date command
b. Ver command
c. Disk command
Correct Answer: a.
Date command
Explanation: Ver command displays the version
number of Dos. There is no command as Disk. Format command prepares a disk to
be used with DOS. Thus Date is the command that lets you to display and/or
change the system date.
3. While working with Ms-Dos which
command transfers a specific file from one disk to another?
a. Copy
b. Diskcopy
c. Time
Correct Answer: a.
Copy
For a specific file to copy from one disk to
another disk, Copy command should be used. Diskcopy copies whole disk into new
disk. Time command is to display system time and Rename command just changes
the name of a file.
4. If you don’t know the current
time, which command will you use to display
a. Copy
b. Ver
c. Time
Correct Answer: c.
Time
Explanation: Time command displays and allows
you to change system time. TIME only displays the system time and TIME
<time> is used to set new time as system time.
5. Which command divides the
surface of the blank disk into sectors and assign a unique address to each one
a. Ver
b. Format
c. Fat
Correct Answer: b.
Format
Explanation: Ver is used to display the
version number of DOS in use. Fat command does not exist and Chkdsk is to check
disk errors and fix it. Thus dividing surface into sectors is done by Format
command.
6. Each time you turn on your
computer, it will check on the control file
a. Command.com, io.sys
b. Command.com, date.com, dir.com
c. Command.com, io.sys, msdos.sys
Correct Answer: c.
command.com, io.sys, msdos.sys
Explanation: command.com, io.sys and msdos.sys
are the essential system files of MS-Dos. Loading these files from disk into
memory is known as booting. Booting is the process of preparing your computer
to work.
7. If you need to duplicate the
entire disk, which command will you use?
a. Copy
b. Diskcopy
c. Chkdsk
Correct Answer: b.
Diskcopy
Explanation: Diskcopy is used to perform
track-by-track copy of a disk into another. Copy command copies selected files;
chkdsk and format commands are not for copying purpose.
8. Which of the following extensions suggest that the file is a backup copy
a. Bak
b. Bas
c. Com
Correct Answer: a. Bak
Explanation: Bak extension is commonly used to store backup
copies of files so that it can be restored later when original file is
corrupted or deleted. Bas extension indicates the file is a BASIC program
source file, com is command file and txt is plain text file.
9. Which command lists the
contents of current directory of a disk
a. Copy
b. Tree
c. Cd
Correct Answer: Dir
Explanation: Dir command lists the directory
of current location. It includes the files, subdirectories and some other
system information. Tree command is used to list the directory structure in
tree diagram; CD command to change directory and Copy command to copy a file
into another.
10.Only filenames
and extensions are to be displayed in wide format, which command you’ll use?
a. Dir/w
b. Dir a:
c. Dir/s
Correct Answer: Dir/w
Explanation: Dir/w only displays the file
names and extensions excluding file created date/time, file size. Second option
dir a: will list the contents of A drive (floppy drive), third dir/s lists
current directory and its subdirectories too, dir/b displays bare format, that
means, it just makes a list of files, no more information.
SET-2
Objective Questions
(Multiple Choice Questions) from Ms-Dos for computer operators continuying from
11
11. Which command displays all the
files having the same name but different extensions?
a. Dir filename.*
b. Dir filename.ext
c. Dir *.sys
Correct Answer: a. Dir
filename.*
Explanation: * is a wild card character that
stands for all any character. When you specify filename.*, it meant filename
should be specified one but extension can be any. Second option lists only
the specified filename.exe and third and fourth commands lists all files with
sys extension and specified extension.
12. Which command displays only
file and directory names without size, date and timeinformation?
a. Dir/w
b. Dir a:
c. Dir /b
Correct Answer: dir/b
Explanation: dir/b command barely lists the
names of files and directories without any other information like size, date,
time etc.
13. Which command displays comma
for thousand separating on file size while listing?
a. Dir/w
b. Dir/s
c. Dir/b
Correct Answer: d.
Dir/c
Explanation: Using comma for separating
thousand in file size is by default on. You can use dir/-c to remove comma from
the listing. /C stands for comma.
14. Which command is used to
display all the files having the (.exe) extension but different filename?
a. Dir filename.*
b. Dir filename.ext
c. Dir *.sys
Correct Answer: d. Dir
*.ext
Explanation: First two options are obviously
wrong since specifying filename will list for that filename only. Since we need
to list only with .ext extension fourth option is correct. Third option
displays all files with sys extension.
15. Which command should be used to
display all files within the specified subordinate directory of the
subdirectory?
a. Dir \ pathname
b. Dir \ pathname\pathname
c. Dir / ch
Correct
Answer: b. Dir \pathname\pathname
Explanation: The subordinate directory of
subdirectory can be accessed through the path sequence pathname\pathname and
dir command lists the files of that location.
16. Which command displays the
directory list including files in tree structure?
a. Dir/s/f
b. Tree/f
c. Tree/s/f
Correct Answer: b.
Tree/f
Explanation: Tree command lists the directory
structure in tree structure and /f switch of tree command includes the
filenames in the structure.
17. Which command will be used to
display a file within the specified directory of pathname?
a. Dir \pathname
b. Dir \pathname\pathname
c. Dir/ch
Correct Answer: d. Dir
\pathname\filename
Explanation: Displaying a file which is inside
specified directory can be done by specifying a directory name \ and filename.
18. Which command creates a
directory or subdirectory?
a. Dir
b. Mkdir
c. Md
Correct Answer: d.
Both b and c
Explanation: MK command and MKDIR both
commands are equivalent and can be used to create subdirectories. Dir only
lists directory but can’t create.
19. Which command displays current
directory name or change from one to another?
a. Chdir
b. Cd
c. Mkdir
Correct Answer: d.
Both a and b
Explanation: CD and CHDIR commands are
equivalent and both used to change current working directory to another one.
MKDIR creates a new directory and can’t be used to change.
20.Which command is
used to delete the directory that is empty?
a. Del *.*
b. RD
c. Erase
Correct Answer: b. RD
Explanation: RD command or RMDIR commands can be used to remove
a directory if it is empty. Del
command and Erase commands are used to delete files not directories. MD creates
a new directory and can’t remove directory.
SET-4
1. 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
Correct Answer: c
2. In which year the
first operating system was developed
a. 1910
b. 1940
c. 1950
d. 1980
Correct Answer: c
3. MS-DOS developed in
a. 1991
b. 1984
c. 1971
d. 1961
Correct Answer: b
4. Maximum length of DOS
command using any optional parameter is
a. 26 characters
b. 87 characters
c. 127 characters
d. None of above
Correct Answer: c
5. In which version of
DOS. CHKDSK command has been changed to SCANDISK?
a. 5.0
b. 6.2
c. 6.0
d. 6.2
Correct Answer: d
6. 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
Correct Answer: d
7. 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
Correct Answer: a
8. Which command is used
to backup in DOS 6+ Version
a. BACKUP
b. MSBACKUP
c. MSBACKEDUP
d. All of the above
Correct Answer: b
9. 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
Correct Answer: c
44. 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
Correct Answer: d
10. Which command is used
to clear the screen
a. Cls
b. Clear
c. Clscreen
d. All of above
Correct Answer: a
11. internal command in
Dos are
a. Cls, rd label
b. Dir, ren, sys
c. Time, type, dir
d. Del , disk copy, label
Correct Answer: c
12. Which command is used
to copy files?
a. Copy
b. Diskcopy
c. Type
d. All of the above
Correct Answer: a
13. To copy the hidden
system files of DOS to another disk you can use the command
a. Copy
b. Ren
c. Sys
d. Diskcopy
Correct Answer: c
14. 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
Correct Answer: b
15. 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
Correct Answer: a
16. 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:
Correct Answer: b
17. External command in
DOS are
a. Copy, edit, sys, format
b. Edit, sys, chkdsk
c. Chkdsk, prompt, date
d. Sys, ver, vol
Correct Answer: b
18. Which keys can be
pressed quit without saving in DOS
a. Ctrl + A
b. Ctrl + B
c. Ctrl + C
d. Ctrl + D
Correct Answer: c
19. Which command is used
to get the current date only?
a. Date
b. Time
c. Second
d. All of the above
Correct Answer: a
20. Generally, the DATE is
entered in the form
a. DD-YY-MM
b. YY-DD-MM
c. MM-YY-DD
d. MM-DD-YY
Correct Answer: d
SET-5
1. Which statement is
valid about “TIME” command?
a. Time command is used
to display and allow changes to the system time
b. Time format can be
changed by changing in country setting in config.sys file
c. MS DOS displays the
time in 12-hour or 24-hour format
d. All of above
Correct Answer: d
2. Which command is used
to see the sub-directory structure of drive?
a. Tree
b. List
c. Subdir
d. Subtree
Correct Answer: a
3. Which command is used
to display the subdirectory structure of the currently logged drive and pause
the screen display after each screen full of the information?
a. Tree
b. Deltree/f
c. Dir | more
d. Tree | more
Correct Answer: d
4. Which command is used
to provide access to files located in other directories or disks?
a. Tree
b. Path
c. Dir
d. Cd
Correct Answer: b
5. you can copy
command.com to your disk from hard disk
a. true
b. false
Correct Answer: a
6. Which command is used
to see the contents of a file?
a. Type
b. Copy
c. Ed
d. None of above
Correct Answer: a
7. Which command is used
to see the disk volume label?
a. Ver
b. Vol
c. Version
d. Volume
Correct Answer: b
8. Which command is used
to see the version?
a. Version
b. Ver
c. Verson
d. None of above
Correct Answer: b
9. What is the name of
the batch file that
is automatically run when MSDOS is booted?
a. Run.bat
b. Config.sys
c. Config.bat
d. Autoexec.bat
Correct Answer: d
10. What is the switch
that is used to make sure that the copy command copied files correctly
a. /a
b. /c
c. /s
d. /v
Correct Answer: d
11. What will be the
output of the command prompt $l$p$g?
a. <c:\>
b. C:\>
c. C:\>>
d. C:<\>
Correct Answer: a
12. Which among the
following are the best tools for fixing errors on disks?
a. Fdisk
b. Scandisk
c. Chkdsk
d. Fixdsk
Correct Answer: b
13. Which command can be
used to create the disk’s tracks and sectors?
a. Fdisk
b. Format
c. Chkdsk
d. Attrib
Correct Answer: b
14. Which command in DOS
can be used to recover accidentally deleted files?
a. UNDELETE
b. DELETE/CANCEL
c. RESTORE
d. RECOVER
Correct Answer: a
15. Which command in DOS
is used to display the version of MSDOS?
a. VERSION
b. VERIFY
c. VER
d. VERSN
Correct Answer: c
16. Which command is used
to copy all files from drive a with extension .txt to the currently logged drive and
directory?
a. Copy a. *.txt
b. Copy *.txt a:
c. Copy *.txt c:
d. Copy *.txt all.txt
Correct Answer: a
17. Which command is used
to create root directory and FAT on disk?
a. Chkdsk
b. Command.com
c. Format
d. Fat
Correct Answer: c
18. Which command is used
to delete all the files extension .txt on the current drive and directory?
a. Del
.txt
b. Erase .txt
c. Del
*.txt
d. Del
*.*/p
Correct Answer: c
19. Which
command is used to delete all the files in the root directory of drive a
a. A:\del
b. Del
*.* a:
c. Del
a:\
d. Erase *.*
Correct Answer: c
20. Which command is used
to display a list of deleted files that DOS can undelete?
a. Undelete *.*
b. Undelete/all
c. Undelete/list
d. None of the above
Correct Answer: c
21. Which command is used
to undelete delete a bunch of files with extension doc that you have just
deleted
a. Undelete
b. Undelete *.doc
c. Undelete/all
d. All of the above
Correct Answer: b
SET-6
1. Which file in MSDOS
contain internal command that are loaded during booting process?
a. Io.sys
b. Msdos.sys
c. Command.com
d. Config.sys
Correct Answer: c
2. Which is the valid
filename assign in MS-DOS?
a. Ram*.txt
b. Ram?.doc
c. Ram_$.txt
d. None of above
Correct Answer: c
3. Which is valid extension that user creates on operating system?
a. Exe
b. Com
c. Sys
d. Bat
Correct Answer: d
4. Which of the following
file names are invalid in MSDOS?
a. MYFILE.DOS
b. CHECK$.(1)
c. Verified.###
d. Qwerty.1?3
Correct Answer: d
5. Which of the following
statements in regard to directories is false?
a. Directories can exist
inside directories
b. The root directory is
always at the highest level
c. Directories with files
can be deleted
d. Directories cannot be
renamed
Correct Answer: d
6. Which of the following
statements is true in regard to diskcopy?
a. Copy and discopy are
same
b. Discopy is a built in
command in dos
c. Diskcopy can be used on
hard disks
d. Diskcopy can be used
with a floppy and a hard disk
Correct Answer: c
7. Which switch should be
used in the DIR command to view files in all directories?
a. /p
b. /w
c. /s
d. /l
Correct Answer: c
8. Which type of command
in DOS needs additional files for their execution?
a. Internal commands
b. External commands
c. Batch commands
d. Redirectors
Correct Answer: b
9. Which was the last
version of MSDOS that was released separately?
a. 5.0
b. 6.0
c. 6.11
d. 6.22
Correct Answer: d
10. While working with
MS-DOS which command is used to change the extension of all filenames ending
with .txt to .doc?
a. Ren *.doc *.txt
b. Ren *.txt *.doc
c. Ren
file.doc file.txt
d. Ren a: *.doc *.txt
Correct Answer: b
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
Correct Answer: b
12. While working with
MS-DOS which command is used to copy all files with extension .txt into one
file named all.txt?
a. Copy a: *.txt
b. Copy *.txt a:
c. Copy *.txt c:
d. Copy *.txt all.txt
Correct Answer: d
13. 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
Correct Answer: c
14. 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
Correct Answer: d
15. While working with
which command is used to copy all files from the currently logged drive and
directory with the extension .txt to the drive a
a. Copy a. *.txt
b. Copy *.txt a:
c. Copy *.txt c:
d. Copy *.txt all.txt
Correct Answer: b
16. Which command in DOS
can be used to recover accidentally deleted files?
a. UNDELETE
b. DELETE/CANCEL
c. RESTORE
d. RECOVER
Correct Answer: a
17. Which command is used
to set a name to a disk in DOS?
a. VOLUME
b. VOL
c. LABEL
d. DISKLABEL
Correct Answer: c
18. 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
Correct Answer: a
19. Which command
displays the list of all previous commands entered by the used?
a. COMMANDS/ALL
b. KEYDOS
c. DOSKEY
d. DIR/ALL
Correct Answer: C
SET-7
1. ………. runs on computer
hardware and serve as platform for other software to run on
a. Operating system
b. Application software
c. System software
d. All
Correct Answer: a
2. ….is the layer of a
computer system
between the hardware and the user program
a. Operating environment
b. Operating system
c. System environment
d. None
Correct Answer: b
3. The primary purpose of
an operating system is…..
a. To make the most
efficient use of the computer hardware
b. To allow people to use
the computer
c. To keep systems
programmers employed
d. To make computers
easier to use
Correct Answer: a
4. …….transforms one
interface into another interface
a. Program
b. Software
c. Data
d. None
Correct Answer: b
5. …..system is built
directly on the hardware
a. Environment
b. System
c. Operating
d. None
Correct Answer: c
6. Multiprogramming system
a. Are easier to develop
than single programming system
b. Execute each job faster
c. Execute more jobs
in the same time
period
d. Are used only one large
mainframe computers
Correct Answer: c
7. …is the first program
run on a computer when the computer boots up
a. System software
b. Operating system
c. System operations
d. None
Correct Answer: b
8. …..interface consists of
things like program counter, registers, interrupts and terminals
a. Hardware
b. Software
c. Data
d. None
Correct Answer: a
9. ….share characteristics
with both hardware and software
a. Operating system
b. Software
c. Data
d. None
Correct Answer: a
10. ….is used in
operating system to separate mechanism from policy
a. Single level
implementation
b. Two level implementation
c. Multi level
implementation
d. None
Correct Answer: b
11. The operating system
creates …. from the physical computer
a. Virtual space
b. Virtual computers
c. Virtual device
d. None
Correct Answer: b
12. Swapping
a. Works best with many
small partitions
b. Allows many programs to
use memory simultaneously
c. Allows each program in
turn to use the memory
d. Does not work with
overlaying
Correct Answer: c
13. Which of the
following operating does not implement multitasking truly?
a. Windows 98
b. Windows NT
c. Windows XP
d. MS DOS
Correct Answer: d
14. What is the name of
the latest server operating system developed by Microsoft?
a. Windows NT
b. Windows 2000
c. Windows XP
d. Windows 2003
Correct Answer: d
15. Where do you find
user.dat?
a. C:\windows
b. C:\windows\system32
c. C:\windows\system
d. C:\
Correct Answer: a
16. MSD.exe does not have
information on:
a. Cache
b. Video
c. Operating System
d. Com or port
Correct Answer: a
SET-8
1.
The startup routine runs, when machine boots up is known as
a.
POST
b.
BOOT up
c.
Operating Routine
d.
I/O operation
2.
Operating system is also known as:
a.
database
b.
system software
c.
hardware
d.
printer
3.
What is the maximum length allowed for primary name of a
computer file under DOS?
a.
8
b.
12
c.
3
d.
None of the above
4.
Which of the following could be a valid DOS file
specification?
a.
NOSFILE.POST
b.
NOSFILE.P.OST
c.
NOSFILE.DOC
d.
NOST.FILEDOC
5.
How many characters form a secondary name for a file?
a.
8
b.
12
c.
3
d.
None of the above
6.
What is the name given to something that the
computer will automatically use unless you tell it otherwise?
a.
a specification
b.
a wildcard
c.
a default
d.
a rule
7.
As per symbolic notation of DOS, which of the following
indicates the ROOT directory
a.
*
b.
>
c.
/
d.
None of the above
8.
In wildcard specification `?' is used as replacement for
a.
one character
b.
two character
c.
three character
d.
none of the above
9.
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
10.
DOS system file consists of
a.
IBMBIO.COM, IBMDOS.COM, COMMAND.COM
b.
COMMAND.COM, IBMBIO.COM, FORMAT.COM
c.
SYS.COM,IBMBIO.COM,IBMDOS.COM
d.
None of the above
11.
The batch file uses the extension
a.
.BAT
b.
.DOC
c.
.PRG
d.
.DOS
12.
To display the list of all the file of the disk you would type
a.
DIR
b.
COPY
c.
DIR FILES
d.
DIR AUTOEXEC.BAT
13.
State whether the following questions are True(T) or False(F).
a.
Command.Com is hidden file.
b.
Primary name of a file can be of 10 characters.
c.
The command MKDIR and MD performs the same task.
d.
Under DOS .EXE is not an executable file.
e.
DIR command is used to see the content of a specific file.
ANSWERS:
1 b.
2 b. 3
a. 4
b. 5
b
6 c. 7
d. 8
a.
9 b. 10
a. 11
a 12 a..
13 True OR False
1. False 2. False 3. True 4. False 5. False
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