411. Which command is used to display the contents of the text file of DOS?

A Copy con
B Copy
C Type
D Dir
ANS Click C

412. In Windows, start button is used to

A Run applications
B Device setting
C Turn off the system
D All of above
ANS Click D

413. Which of the following is an essential file of a MS-DOS boot disk?

A COMMAND.COM
B START.COM
C TREE.COM
D VER.COM
ANS Click A

414. Which one is true for unconditional disk formatting?

A Destroys every byte of data on a disk by overwriting it with with blank spaces
B Do not check/scan surface after format
C Transfer system files after format
D All of above
ANS Click A

415. Once text has been cut to the clipboard, you can .....that text into another document

A Paste
B Copy
C Transfer
D None of the above
ANS Click A

416. What is the function of button button?

A To select multiple option
B To select single option
C To select all option
D All of above
ANS Click B

417. The Banker's algorithm is used

A to rectify deadlock
B to detect deadlock
C to prevent deadlock
D to slove deadlock
ANS Click C

418. The primary purpose of an operating system is:

A To make the most efficient use of the computer hardware
B To allow people to use the computer
C To keep systems programmers employed
D To make computers easier to use
ANS Click A

419. The primary purpose of an operating system is a ...

A To make the most efficient use of computer hardware
B To allow people to use the computer
C To keep system programmer employed
D To make computer easier to use
ANS Click A

420. You can use print manage window

A To check status of files in the print queue
B To cancel the print job
C To interrupt printing
D All of the above
ANS Click D