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Q1. What is a TSR?
(A) Test status request
(B) Terminate and stay resident program
(C) Take status request
(D) Token set ready
Answer: (B) Terminate and stay resident program
Q2. Which DOS command will configure a serial printing port?
(A) Parallel serial
(B) Mode LPT1=C0M1
(C) Direct LPTl=COMl
(D) Mode printer ()-serial ()
Answer: (B) Mode LPT1=C0M1
Q3. Which command will be used to display file and directory names only, without size, date, and time information?
(B) DIR A:
Answer: (C) DIR/B
Q4. DOS uses letters of the alphabet to designate disk drives. How many disk drives can DOS address (recognize)?
Answer: (B) 26
Q5. Which file executes commands in DOS?
Answer: (C) COMMAND.COM
Q6. You suspect that your automatic modem dialer is not working correctly. Which of the following commands will manually dial the number 123-4567?
(D) ATM 1234567
Answer: (B) ATDT1234567
Q7. While working with MS-DOS, which command is used to specify the size of the disk to format.
(A) FORMAT/F : size
(B) FORMAT/N : sector
(C) FORMAT/T : tracks
Answer: (A) FORMAT/F : size
Q8. The COPY command of MS-DOS, is used to:
(A) Copying files from one floppy disk to another floppy disk
(B) Copying one or more files on the same disk or directory
(C) Copying two or more files into a single file
(D) All of the above
Answer: (D) All of the above
Q9. Match the device driver HIMEM.SYS to its operation
(A) Supports (ANSI) terminal emulation
(B) Manages the use of extended memory
(C) Uses expanded memory on an 80386 processor
(D) Supports code page switching
Answer: (B) Manages the use of extended memory
Q10. Upper Memory blocks are located where?
(A) Conventional Memory
(B) Extended Memory
(C) Expanded memory
(D) Reserved Memory
Answer: (D) Reserved Memory
Q11. Filename extensions help identify certain files. What filename extension identifies command files?
Answer: (A) COM
Q12. What does MSCDEX.EXE do?
(A) Configures hard drives
(B) It’s a SCSI driver
(C) BIOS setup
(D) It’s a CD-ROM DOS driver
Answer: (D) It’s a CD-ROM DOS driver
Q13. While using the DIR command, you can use certain switches with it. Which one of the following cannot be used with DIR?
Answer: (D) /T
Q14. When executed from a bootable hard drive, which command will make a formatted floppy disk bootable?
(A) COPY C:\DOS\COMMAND.COM A:\
(B) ATTRIB C:*.SYS A:\
(C) XCOPY C:\DOS*.* A:\
(D) SYS C: A:
Answer: (D) SYS C: A:
Q15. The __ command allows you to modify the default prompt to provide other information
Answer: (A) Prompt
Disk Operating System (DOS) MCQ – All Set
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