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MCQ

Q.

One problem with the global replacement algorithm is that ____________

A

it is very expensive

B

many frames can be allocated to a process

C

only a few frames can be allocated to a process

D

a process cannot control its own page-fault rate

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The operating system is?

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in the low memory

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in the high memory

C

either low or high memory (depending on the location of interrupt vector)

D

none of the mentioned

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2.

Virtual memory allows ____________

A

execution of a process that may not be completely in memory

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a program to be smaller than the physical memory

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a program to be larger than the secondary storage

D

execution of a process without being in physical memory

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In internal fragmentation, memory is internal to a partition and ____________

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is being used

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is not being used

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page table

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copy of page table

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pointer to page table

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all of the mentioned

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The main memory accommodates ____________

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operating system

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cpu

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user processes

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all of the mentioned

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