Saurastra University 2006 M.C.A Operating System (New ) - Question Paper

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*SU-7621*

SU-7621    Seat No._

M. C. A. (Sem. II) Examination

May / June - 2006 Operating System

(New Course)

Time : Hours]    [Total Marks : 75

1    Answer the following : (any five)    25

(1)    What is operating system ? Explain the types of operating system.

(2)    Explain dining philosophers problem.

(3)    Explain LRU (Least Recently Used) - page replacement algorithm.

(4)    What is operating system process ? Explain the process states.

(5)    Discuss the components of Linux system.

(6)    Explain RAID.

(7)    What are the security threats ? Explain.

2    Explain Multiprogramming with variable partitioning.    7

OR

2    What is PCB ? Explain in detail.    7

3    Answer the following : (any five)    25

(1)    How can we detect the deadlock ?

(2)    Explain Bankers algorithm for a single resource.

(3)    What is thread ? Explain in detail.

(4)    Write a note : Semaphores.

(5)    Write a note : Direct Memory Access (DMA)

(6)    What is file sharing ?

(7)    What is scheduling ? Explain scheduling criteria.

4 What is scheduling ? Explain scheduling algorithms.    6

(any two)

OR

4    Explain deadlock recovery and deadlock prevention.    6

5    Answer in brief : (any four)    12

(i)    Monitors

(ii)    Message passing

(iii)    Paging

(iv)    Segmentation

(v)    File types

(vi)    Distributed systems

SU-7621]    2    [200]

Attachment: saurastra-university-2006-m-c-a--25893-1.pdf

Earning:   Approval pending.