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. is used in operating system to separate mechanism from policy?
a) Single level implementation
b) Two level implementation
c) Multi level implementation
d) None

5. The operating system creates____from the physical computer?
a) Virtual space
b) Virtual computers
c) Virtual device
d) None

6. 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

7. Which switch should be used in the DIR command to view files in all directories?
a) /p
b) /w
c) /s
d) /l

8. Which type of command in DOS needs additional files for their execution?
a) Internal commands
b) External commands
c) Batch commands
d) Re directors

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