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OPERATING SYSTEMWhat are the various allocation policies in variable partition multiprogramming? Explain the differences between internal and external fragmentations.20237mOperating SystemInternal fragmentation occurs when (i) Processes are swapped out (ii) Pages are missing (iii) Memory is completely utilized (iv) Unused space exists within an allocated memory partition20252mOperating SystemVariable partition memory allocation can lead to? (i) external fragmentation (ii) internal fragmentation (iii) both (i) and (ii) (iv) none of these20232mOPERATING SYSTEMWhat is the difference between fixed partition and variable partition also explains the need of compaction.20247m
PreviousWhat is the cause of thrashing? How does the system detect thrashing and once detected what can the system do to eliminate itNextConsider a paging hardware with a TLB. Assume that the entire page table and all the pages are in the physical memory. It takes 10 milliseconds to search the TLB and 80 milliseconds to access the physical memory. If the TLB hit ratio is 0.6, find the effective memory access time (in milliseconds).
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