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Posted By: satish Member Level: Gold Posted Date: 01 Nov 2007
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2006 Jawaharlal Nehru Technological University Production III B.Tech I Semester Regular Examinations, November 2006 SET-3 Question paper
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Code No: RR311301 Set No. 3
III B.Tech I Semester Regular Examinations, November 2006
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1. (a) Describe the basic instruction cycle with example.
(b) What is an Interrupt? Describe the different types of interrupts. [8+8]
2. (a) Explain the role of process control block in OS.
(b) Differentiate the following
i. Process Switching vs Context Switching
ii. Clock interrupt Vs I/O interrupt. [8+8]
3. What is Readers/Writers problem? Explain the method of solving the problem by
using Semaphores with Writers having priority. [8+8]
4. What is deadlock avoidance? Explain process initiation denial and resource
allocation denial in detail with example. [4+4+4+4]
5. (a) Discuss the differences between a pure paging and pure segmentation virtual
memory systems. What are the pros and cons of each scheme?
(b) What are the three main issues of implementing a virtual memory system?
(c) Comment on the relative merits of using a local versus a global page
replacement policy. [6+5+5]
6. Compare and contrast of various disk scheduling algorithm [16]
7. (a) What do you understand by a file directory?
(b) Explain briefly the information elements of a file directory
(c) Explain what is treestructured
directory? [5+5+6]
8. What do you understand by Trusted systems? Draw a figure of reference monitor
concept and explain. [5+5+6]
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