Flashcards
Sem título
Flashcards do conjunto (12)
- 1Which memory allocation scheme first introduced the concept of virtual memoryDemand paging
- 2Compaction is one solution to the problem ofExternal fragmentation
- 3What program deals with a page faultPage fault handler
- 4The efficiency of a system is measured in the number of jobs completed in a given amount of time is called?Throughput
- 5T/F There is no fragmentation when using paged memory allocationFalse
- 6T/F A page fault is issued in paged memory allocation, when the job calls for an instruction in memoryFalse
The entire job must still be loaded into memory when using paged memory allocation, therefore a page fault does not occur - 7T/F An entire job does not have to be loaded into memory when using demand paging allocationTrue
- 8T/F When using the Fixed Partition memory allocation one may have partitions of different sizesTrue
- 9paged memory allocation requires that the entire job be loaded into memory before it will runTrue
- 10What is the main problem with the Fixed Partition memory allocation schemeInternal Fragmentation
- 11The main problem solved by the Paged memory allocation scheme wasJob must be loaded into contiguous memory problem
- 12What memory allocation scheme does the following describe? Memory Manage: relocates programs All empty blocks: gathered together Empty blocks: compacted to make one memory block large enough to accommodate some or all waiting jobsRelocatable Dynamic Partitions
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- Operating systems FlashCards sobre Sem título, criado por Matthew Butts em 02-05-2015.
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- Matthew Butts
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