Operating System (OS)
Which of the following statement is true.

None of these
All of these
Thrashing is a natural consequence of virtual memory systems.
The LRU algorithm pages out pages that have been used recently
Seek analysis is used for analysing control-unit busy problems.

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Operating System (OS)
Which, of the following, is true for testing and debugging?

Testing and debugging indicate the same thing
All of these
Testing detects the syntax errors in the program while debugging corrects those errors in the program
None of these
Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program

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Operating System (OS)
Feed back queue

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

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