Elance DOS Test Answers 2015



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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