Disk Operating System (DOS) MCQ

Are you guys looking for computer science MCQ Questions with Answers PDF Free Download as per computer science new exam pattern? You came to the right page. This may assist you to understand and check your knowledge about the Subjects. Students also can take a free test of the Multiple Choice Questions of computer science. Each question has four options followed by the right answer. These computer science MCQ Questions are selected supported by the newest exam pattern.

Q1. The COPY command of MS-DOS, is used to:

(A) Copying files to transfer from one PC to another
(B) Copying files for safe keeping or for record purpose
(C) Copying files from the hard disk to floppy disks
(D) All of the above

Answer:(D) All of the above

Q2. While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?

(A) COPY
(B) DISKCOPY
(C) TIME
(D) RENAME

Answer: (A) COPY

Q3. You suspect a virus has entered your computer. What will not be affected by the virus?

(A) CMOS
(B) Boot sector
(C) Floppy disks
(D) Program files

Answer: (A) CMOS

Q4. 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

Answer: (B) COPY FILE1+FILE2 FILE3

Q5. While working with MS-DOS, which command is used to sort the file in ascending order?

(A) SORT filename
(B) SORT < filename (C) SORT > filename
(D) SORT | filename

Answer: (B) SORT < filename

Q6. What type of commands are individual programs kept, as separate files on the hard disk (DOS diskette)?

(A) External
(B) Internal
(C) Change
(D) File

Answer: (A) External

Q7. Which command of MS-DOS is used to copy only files that have been modified on or after the date you specify?

(A) XCOPY/D : date
(B) COPY/D : date
(C) COPY/M
(D) XCOPY/V

Answer: (A) XCOPY/D : date

Q8. Which command is used to display the subdirectory structure of the currently logged drive and pause the screen display after each screenful of information?

(A) TREE
(B) DELTREE/F
(C) DIR | MORE
(D) TREE | MORE

Answer: (D) TREE | MORE

Q9. Which of the following applies to Internal DOS commands?

(A) Internal commands can be run whenever the DOS prompt is displayed
(B) Internal commands are reserved for DOS-level programming
(C) Internal commands can only be executed from a batch file
(D) Internal commands are stored on disk separately from COMMAND.COM

Answer: (A) Internal commands can be run whenever the DOS prompt is displayed

Q10. To organize files on a disk, MS-DOS separates them into areas called __

(A) Directories
(B) Buckets
(C) Areas
(D) Area directories

Answer: (A) Directories

Q11. Which DOS command allows you to compress existing disks and to create new compressed volumes?

(A) DEFRAG
(B) DBLSPACE
(C) SCANDISK
(D) MSAV

Answer: (B) DBLSPACE

Q12. Which DOS command is used to remove and scan memory and disk from viruses?

(A) MSAV
(B) DEFRAG
(C) SCANDISK
(D) VSAFE

Answer: (A) MSAV

Q13. In DOS, what key would you press to step through the Config.sys and Autoexec.bat?

(A) F1
(B) F3
(C) F5
(D) F8

Answer: (D) F8

Q14. Which command is used to suppress the prompt that asks you to confirm that you want to delete the directory?

(A) DELTREE
(B) DELTREE/F
(C) DEL.
(D) ERASE .

Answer: (B) DELTREE/F

Q15. 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

Answer: (C) DATE