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What are demand- and pre-paging?

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What are demand- and pre-paging?..

Answer / raj kumar

demand-paging-the transfer of page from secondary memory to
primary memory at the moment of need.
pre-paging-the retrieval of a page other then demanded by a
page fault.the hope is that the additional page will be
needed in near future.

Is This Answer Correct ?    25 Yes 5 No

What are demand- and pre-paging?..

Answer / guest

With demand paging, a page is brought into memory only when
a location on that page is actually referenced during
execution. With pre-paging, pages other than the one
demanded by a page fault are brought in.

The selection of such pages is done based on common access
patterns, especially for secondary memory devices.

Is This Answer Correct ?    22 Yes 11 No

What are demand- and pre-paging?..

Answer / g.bhaskaran

With demand paging a page is brought into memory only when a
location on that page is actually referenced during
execution. With prepaging other then the one demanded by a
page fault is actually reference during execution.

Is This Answer Correct ?    12 Yes 5 No

What are demand- and pre-paging?..

Answer / terry xaviour

demand paging is a process that accesses its working set by
page faults every time it is restarted.

pre-paging is a technique whereby the operating system in a
paging virtual memory multitasking environment loads all
pages of a processors working set into memory before the
process is restarted.

Is This Answer Correct ?    9 Yes 2 No

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