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Posted By: Bala Member Level: Diamond Posted Date: 19 Dec 2007
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2004 Centre for Development of Advanced Computing(C-DAC) M.C.A MCA 201 Operating System University Question paper
END-TERM EXAMINATION
Third Semester [MCA] - DECEMBER 2004
Paper Code: MCA 201 Subject: Operating System
Time: 3 Hours Maximum Marks: 70
Q. 1.
(a) What are the different functionalities of an operating system? Explain.
6
(b) How protection is provided by the operating system at the file system
level? Explain different protection mechanism. 6
Q. 2.
(a) What is a process? How it differs from a program? Differentiate
between a multiprocessing system and a multiprocessor system. 6
(b) Explain the purpose of schedulers. With a neat diagram explain
different types of schedulers. 6
Q. 3.
(a) What is a directory? Explain different directory structure. 6
(b) Explain the linked and indexed memory allocation technique for
secondary storage management. How file space is allocated in Unix
Operating system? 6
Q. 4.
(a) Differentiate between buffering and spooling. 4
(b) Explain pages segmentation memory management technique. What
special hardware are required for such a system? 8
Q. 5.
(a) What is deadlock? Explain four necessary condition for a deadlock to
occur. 6
(b) What is thrashing? Why is it required? 6
Q. 6.
(a) What do you mean by fragmentation? How the fragmentation
problem can be solved? 6
(b) What is device controller? State some advantages of placing
functionality in a device controller rather than in the kernel. 6
Q. 7.
(a) What are the various algorithms for process scheduling? Explain each
of them. 8
(b) What are concurrent and cooperating processes? Explain. 4
Q. 8. Write short notes on each of the following :-
12
(a) Segmentation
(b) Page Fault
(c) Virtual Memory
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