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Operating System (OS)

Operating System (OS)
The initial value of the semaphore that allows only one of the many processes to enter their critical sections, is

0
16
8
None of these
1

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Operating System (OS)
To change the screen saver you can go from

Control panel display
None of These
Both of Above
Right click in desktop and properties

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Operating System (OS)
The ability of an operating system to control the activities of multiple program at the same time is called

Multipaging
Multitasking
Multiprocessing
Multioperating

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Operating System (OS)
In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?

None of these
best fit
first fit
worst fit
buddy

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Operating System (OS)
Taskbar is used for

Switching between program
Start a program
All of the listed here
Navigation program

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Operating System (OS)
Which of the following is not an advantage of multiprogramming?

ability to assign priorities to jobs
decreased operating-system overhead
increased throughput
shorter response time
None of these

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