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IGNOU UNIVERSITY MCA - II (SEM 4) DEC 2009 : Operating Systems

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MCS-041 MCA (Revised) NCO CY) CO Term-End Examination December, 2009 MCS-041 : OPERATING SYSTEMS Time : 3 hours Maximum Marks :100 (Weightage 75%) Note : Question'one is compulsory. Attempt any three questions from the rest. 1. (a) State the Reader's/ writer's problem and 10 write its semaphore based solution and explain the steps of the algorithm. Also explain all assumptions taken for writing the solution. A computer has 6 printers, with n processes competing for them. Each process may need two printers. For which value of n is the system deadlock free! Why are the page size, the number of pages in the virtual address space and the number of page frames in the physical address space all a power of 2. Explain. MCS-041 t-- 6 4 1 P.T.O.

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Additional Info : Mca - II (sem 4) December 2009 Question Paper - Operating Systems (Revised Course)
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