Elance DOS Test Answers 2015
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What does DOS stands for?
Distributed Operating System
Digital Operating System
Directory Operating System
Disk Operating System
Which pair of command does not perform the
same function?
FOR, FORMAT
CH, CHDIR
DEL, ERASE
REN, RENAME
Which is not displayed by “CHKDSK” command?
free space in the disk D.
number of hidden files
storage capacity of the disk
number of executable files
Which of the following DOS commands provides
International keyboard (different countries and language) and character set
information?
CHKDSK
CALL
CHCP
CHOICE
Which of the following is true about external
command MSD?
Scans thecomputer for known viruses
Moves one or more files
Provides detailed technical information about the
computer
Deletes a directory/file
What is the command that will change to the
root directory irrespective of the current directory?
CD..
CD\
CD\\
CD\..
A program or command to execute automatically
when OS starts is kept in which file?
autoexec.bat
system.bat
command.com
config.sys
Which command is used to display the disk
volume label?
Volume
Ver
Vol
Version
What function does the MEM command perform?
Allocate memory for a program
Displays the amount of used and free memory
Deallocate memory for a program
Free all unused memory
What action does the DELTREE command perform?
deletes a directory and all subdirectories and
files within it
delete all subdirectories within it
delete all subdirectories and files within it
Which of the following commands is used to
display the list of files and directories starting with 's'?
dir*s
dir ? s
dir s?
dir s*
What type of OS is MSDOS?
Single user, GUI
Single user, CUI
Multi user, GUI
Multi user, CUI
What is the command to clear the screen?
CLS
CLS and CLEAR
ERASE
CLEAR
Which command will copy all files with
extension .TXT under the current directory to drive D?
COPY .TXT/A D:
COPY *.TXT/A D:
COPY *.TXT D:
COPY .TXT D:
True or False? DOS is a multitasking operating
system.
False
True
What are the keys pressed to perform a warm
reboot on a DOS operating system?
Ctrl + Alt + Esc
Ctrl + Alt + Del
Ctrl + Shft + Del
Ctrl + Esc
Which of the following external command
deletes a directory and all the files and subdirectories in it?
DEL
DRVSPACE
DELOLDOS
DELTREE
What is the function of “Ctrl+C” in DOS?
Un-Delete the deleted file
Delete the file
Saves a file
Breaks execution of command
True or False? A volume label can be assigned
to a disk by using the LABEL command.
True
False
What action does the MODE command perform?
display information on port and display setting
ALL three actions are performed by the MODE command
make changes to display setting
configures system devices
Which of the following is a key advantage of
using batch files?
Less chance of making errors
Lesser keystrokes required to perform computer
operations
Time saving
All of the given options are true
What is the command to list all files in the
current directory?
DIR
LS
SHOW
LIST
Which file contains commands that configure
systems devices?
Command.com
Config.sys
Win.ini
Autoexec.bat
Which of the following do you use to search a
file in MS-DOS?
dir/s
dir/ad
dir/d
dir/c
What is the command to create a new directory
in MS-DOS?
MC
MCD
MD
CD
What interface does DOS utilize?
text-based user interface
graphical user interface
command-line interface
web-based user interface
FAT stands for which of the following?
File Allocation Table
File Access Tape
File Accomodation Table
File Activity Table
What is DOS?
a file server
a command prompt
a programming language
an operating system
Which command is used to clear the screen?
cls
clrscreen
clear-screen
clear
What is the full form of DOS?
Disk Operating System
Digital Operating System
Data Organization Software
Digital Office Systems
What DOS command formats a floppy disk and
copies system files to the formatted disk?
FORMAT A: /S
SYS A: /S
SYS A:
FORMAT A: -S
Which statement about AUTOEXEC.BAT is true?
All three statements are true
It is located in the root directory of the boot
device
It is a plain text file
It is called by COMMAND.COM
Which statement about TSR is true?
All three statements are true
TSR creates the appearance of multitasking
TSR returns control to the system but keeps the
program in memory
TSR uses interrupts to return control to a program
in memory
Which DOS command will combine file1 and file2
into new file named file3?
Copy file3 file1+file2
Copy file1+file2+file3
Copy file1+file2 file3
Copy file2 file1+file3
True or False? DOS uses the File Allocation
Table (FAT) file system.
False
True
Which statement about COMMAND.COM is true?
All three statements are true
It is the shell for the DOS operating system
It has two modes: interactive and batch
It runs AUTOEXEC.BAT
The COPY command:
can only copy binary file
copies one or more files to another location
copies one file to another location
can only copy ascii file
Which of the following is true about DOSKEY?
Recalls MS-DOS commands
Creates macros
All of the given options are valid
Edits command lines
True or False? DOS uses the 8.3 filename
convention.
True
False
Which of the following command installs
file-sharing and locking capabilities on the hard disk?
SHARE
SUBST
XCOPY
RESTORE
Which of the following is not a DOS executable
extension?
BAT
EXE
COM
SYS
Which file contains configuration files for
the DOS operating system?
CONFIG.SYS
AUTOEXEC.BAT
MSDOS.SYS
COMMAND.COM
Which of the following commands is used to
copy all the files stored in floppy disk into the DATA directory of hard disk
(c drive)?
copy A:* c:data
copy A: C:
copy A:*.* c:data
copy A:data C:
RESTORE command is used for which of the
following?
Restore files which were deleted recently
Restore files from disks made using the BACKUP
command
Restore files which were deleted
Restore files from recycle bin
What does formatting a disk mean?
Build/rebuild tracks, sectors
Erasing data
Build/rebuild tracks only
Build/rebuild sectors only
Which command do you use to display the
contents of a file?
edit
type
info
copy
What happens when you type “CD” and press
“Enter” key?
Displays current directory
Returns to the root directory
Get the username
Enters into a subdirectory
Which of the following command will delete a
file?
DELTREE
ERASE
All three commands can delete a file
DEL
What is the size limitation of MS-DOS file
name and extension?
255 and 8
255 and 3
3 and 8
8 and 3
Which command is used to set the name to a
disk in DOS?
DISKLABEL
VOLUME
VOL
LABEL
Which of the following will create a bootable
floppy disk?
SYS C: A:
All three commands will create a bootable floppy
disk
FORMAT A: /S
FORMAT A: /S /V:BOOT
Which of the following command will delete a
directory?
All three commands can delete a directory
ERASE
RMDIR
DEL
Which of the following is NOT an internal
command?
BREAK
APPEND
PATH
DIR
Which command do you use to list all the files
and folders whose name contains TST from second character?
dir ?tst*
dir *tst
dir ?tst
dir tst
In XCOPY command, What is the arguiment used
for avoiding prompt for overwrite ?
/Y
/e
/s
/a
/d
Which of the following properties in
CONFIG.SYS file loads device drivers in the upper memory area?
DEVHIGH
DEVICE
DISKCOMP
DEVICEHIGH
Which of the following command will display
the list of all previous commands entered by the user?
DIR/ALL
KEYDOS
DOSKEY
COMMANDS/ALL
The PATH command is typically found in which
file?
COMMAND.COM
MSDOS.SYS
AUTOEXEC.BAT
CONFIG.SYS
"Active Code Page: 437" is displayed
when using this command:
CHCD
CPCH
CHCP
CDPH
CDCH
Which of the following external command load
country specific information?
MORE
NLSFUNC
QBASIC
MODE
What is the attribute that’ll suppress
prompting in the MOVE command
/V
/Y
/A
/X
Which of the following command continuously
monitors the computer for viruses?
SCANDISK
VSAFE
SCAN
SYS
What is the command to list only the hidden
files under the current directory?
DIR /A:H
DIR /A
DIR /H
DIR /A:S
Which of the following command is
syntactically incorrect?
REN c:\foo.txt d:\bar.txt
RENAME foo.txt bar.txt
REN foo.txt bar.txt
RENAME c:\foo.txt bar.txt
Which of the following DOS command will
display the name of files in sorted order?
Dir/ah
Dir/so
Dir/o:n
Dir/an
Which external command file is required to use
“format” command?
format.exe
format.dos
format.hlp
format.com
Which of the following is the correct
load/execution sequence during a DOS boot?
MSDOS.SYS, CONFIG.SYS, COMMAND.COM, AUTOEXEC.BAT
MSDOS.SYS, CONFIG.SYS, AUTOEXEC.BAT, COMMAND.COM
CONFIG.SYS, MSDOS.SYS, COMMAND.COM, AUTOEXEC.BAT
CONFIG.SYS, MSDOS.SYS, AUTOEXEC.BAT, COMMAND.COM
What does TSR stand for?
Terminate and Stay Ready
Terminal System Read
Terminal System Ready
Terminate and Stay Resident
What is the order of precedence when
COMMAND.COM searches for executable files?
.EXE, .COM, .BAT
.EXE, .BAT, .COM
.COM, .EXE, .BAT
there is no order of precedence
Which of the following is NOT an external
command?
DBLSPACE
GOTO
COMMAND
DELTREE
What is the correct command to transfer a file
from one disk to another?
MOVE
DISKCOPY
COPY
RENAME
Which of the folllwing command is used in
CONFIG.SYS file to specify the number of file-control blocks for file sharing?
FASTOPEN
FILES
FC
FCBS
What is the first program that gets run after
boot?
AUTOEXEC.BAT
CONFIG.SYS
COMMAND.COM
WIN.INI
Which of the following operating systems does
not fall under DOS?
MS-DOS
Win DOS
86-DOS
PC DOS
Which of the following is true about FASTOPEN?
Provides summary Help information for MS-DOS
commands
Decreases the amount of time needed to open
frequently used files and directories
Decreases the amount of time needed to open
frequently used files
Decreases the amount of time needed to open
frequently both used files and directories
True or False. DOS is not a single operating
system but several closely related operating systems.
True
False
Which of the following external command
compares two files or sets of files, and displays the differences between them?
EXPAND
FC
CMP
COMPARE
Which statement about Quick Format is true?
All three statements are true
Quick format can be performed on an unformatted
drive.
Quick format does not check for bad sectors
Quick format performs an unconditional format
Which key will bypass CONFIG.SYS and
AUTOEXEC.BAT during the boot sequence?
F1
F8
F5
F2
Which command displays the directory list
including files in tree structure ?
Tree/s/f
Tree/f
Dir/f
Dir/s/f
Which of the following are available in a DOS
file system ?
IBMBIO.COM, IBMDOS.COM, COMMAND.COM
COMMAND.COM, IBMBIO.COM, FORMAT.COM
COMMAND.COM, FORMAT.COM
SYS.COM,IBMBIO.COM,IBMDOS.COM
In Windows Xp, what is the file equlivalent to
CONFIG.SYS ?
None of the above
Config.Nt
config.ini
config.txt
Config.win
Which of the following command copies a folder
including all of its subdirectories?
XCOPY C:\Source C:\Destination /E /I
XCOPY C:\Source C:\Destination /S
XCOPY C:\Source C:\Destination
COPY C:\Source\*.* C:\Destination /X
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