Operating System (OS)
Block or buffer caches are used

None of these
to handle interrupts
to speed up main memory read operation
to improve disk performance
to increase the capacity of main memory

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Operating System (OS)
Which of the following is not true about documentation?

Documentation increases the maintenance time and cost
None of these
All of these
Documentation gives better understanding of the problem
Documentation, of a system, should be as clear and direct as possible

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Operating System (OS)
Under virtual storage,

a single program is processed by two or more CPUs
interprogram interference may occur
two or more programs are stored concurrently in primary storage
None of these
only the active pages of a program are stored in primary storage

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