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38> What are conditions for a machine to support Demand Paging??
Ans: In Unix memory architecture must based on Pages, The machine must support the ‘restartable’ instructions.
39> In Unix What is ‘the principle of locality’ ???
Ans: It’s the nature of the processes that they refer only to the small subset of the total data space of the process. so, therfore the process frequently calls the same subroutines or executes the loop instructions.
40> In Unix What is the working set of a process?? -
Ans: In Unix the set of pages that are referred by the process in the last ‘n’, references, where ‘n’ is called the window of the working set of the process.