Operating System (OS)
Feed back queue

require manual intervention to implement properly
are used to favor real-time tasks
dispatch tasks according to execution characteristics
None of these
are very easy to implement

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Operating System (OS)
Which of the following is true for machine language.

Depicting flow of data in a system
None of these
A sequence of instructions which, when followed properly, solves a problem
the language which communicates with the computer using only the binary digits 1 and 0.
Repeated execution of program segments

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Operating System (OS)
Semaphores

synchronize critical resources to prevent contention
None of these
are used to do I/O
synchronize critical resources to prevent deadlock
are used for memory management

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