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Earn 100
In the working set model, for:
2 6 1 5 7 7 7 7 5 1 6 2 3 4 1 2 3 4 4 4 3 4 3 4 4 4 1 3 2 3
if DELTA = 10, then the working set at time t1 (….7 5 1) is?
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Important Questions on Operating System
EASY
______ is the amount of time taken that is needed for the information to propagate from the source to the destination through the channel.
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Anticipatory paging is also called
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When the memory allocated to a process is slightly larger than the process, then ____________
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A computer can store and retrieve data from secondary storage for use in main memory by
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If a page fault occurs for a reference to an address that's not part of the virtual address space, called
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The memory address space is divided into equal small pieces, called
HARD
__________ has the lowest fault rate of all the page replacement algorithms.
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In virtual memory systems, dynamic address translation _____.
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Pages are swapped out and then accessed causing frequent faults is called
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Many operating system can 'trick' programmes into using memory scattered around the hard disk and as if it is one continuous chunk of memory, called
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A term 'Bus error' is known as
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If the swapping algorithm is not efficient then a condition occurs known as
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Which is a process that reduces the amount of fragmentation?
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External fragmentation exists when?
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The page free queue is a list of page frames that are available for assignment after a
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A ......... is a trap to the software raised by hardware when a program accesses a page that is mapped in the virtual address space, but not loaded in physical memory.
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Memory management is used to______
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If the page is loaded in memory at the time the fault is generated, but is not marked in the memory management unit as being loaded in memory called
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Demand paging is a technique of
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If the page is not loaded in memory at the time the fault is generated, called
