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Operating System (OS)

Operating System (OS)
Which one of the following is not a layer of operating system?

Application program
Shell
Kernel
Critical selection

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Operating System (OS)
Which one is true for unconditional disk formatting?

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

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Operating System (OS)
Disk label name can be up to ___ characters

9
255
11
8

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Operating System (OS)
Small pictures appear on the desktop

Button
Windows
Icon
None of above

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Operating System (OS)
...... controls the way in which the computer system functions and provides a means by which users can interact with the computer

Application software
The operating system
The platform
The motherboard

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Operating System (OS)
For how many processes which are sharing common data, the Dekker's algorithm implements mutual exclusion?

4
3
None of these
2
1

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