Jawaharlal Nehru Technological University Hyderabad 2007-2nd Sem M.C.A Computer Aplications OPERATING sYSTEMS ESTER, Y- - Question Paper

R6
Code No: R6-22/MCA
M.C.A II-Semester Examinations, July-2007.
OPERATING SYSTEMS
Time: three hours Max.Marks: 60
ans any 5 ques.
All ques. carry equal marks
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1. a) elaborate the activities involved in connection with process management and
memory management for which OS is responsible?
b) What is the purpose of interrupts? elaborate the difference ranging from a trap and an
interrupt?

2. a) What is the process control block? What is the info it contains?
b) Distinguish ranging from preemptive and non-preemptive scheduling. provide examples for every of them?

3. a) Describe the swapping policy of an OS.
b) What is paging? define page replacement approach in an OS.

4. a) Describe free management activities.
b) Describe indexed allocation of disk space. elaborate the advantages and disadvantages of this
method over linked allocation ?

5. a) What is a critical part issue ? Suggest a classic software based solution.
b) What is a sleeping-barber problem? Suggest a software solution.

6. a) What is deadlock? How deadlock issues be handled?
b) Describe Banker’s algorithm.

7. a) Give components of LINUX system. define the role of Kernel module.
b) Describe LINUX approach for management of physical memory.

8. a) Describe Microsoft’s design goals for Windows-XP.
b) Describe the working of a virtual memory manager of Windows-XP.

Earning:   Approval pending.