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Posted By: shalat Member Level: Gold Posted Date: 28 Jun 2008
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2005 Bangalore University B.C.A operating system Question paper
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III SEMESTER B.C.A EXAMINATION ,APRIL/MAY 2005
(NEW SCHEME)
COMPUTER SCIENCE
OPERATING SYSTEM
TIME:3 HRS
MAX MARKS:80
SECTION-A
ANSWER ANY EIGHT OF THE FOLLOWING(MARKS:8*3=24)
1.DEFINE AN OPERATING SYSTEM .DIFFERENTIATE BETWEEN ON-LINE AND OFF-LINE OPERATIONS
2.EXPLAIN ANY THREE SERVICES PROVIDED BY THE OPERATING SYSTEM
3.WHAT IS PCB?EXPLAIN BRIEFLY
4.EXPLAIN THE DIFFERENT PROCESS SCHEDULERS
5.BRIEFLY EXPLAIN DEADLOCK RECOVERY
6.WHAT IS CONTEXT SWITCHING?
7.WHAT IS SEGMENTATION?EXPLAIN
8.EXPLAIN LINKED ALLOCATION METHOD FOR FILES
10.GIVE ANY THREE FEATURES OF UNIX OPERATING SYSTEM
SECTION-B
ANSWER NY FOUR OF THE FOLLOWING(4*14=56)
11.a)EXPLAIN DISTRIBUTED OPERATING SYSTEM ALONG WITH ITS ADVANTAGES
b)EXPLAIN SYSTEM CALLS
12a)EXPLAIN READER-WRITER PROBLEM
b)DISCUSS ANY TWO METHODS OF DEADLOCK PREVENTION
13a)EXPLAIN ANY 4 PROCESS SCHEDULING CRITERIA
b)EXPLAIN ROUND ROBIN SCHEDULING ALGORITHM WITH EXAMPLE
14.a)EXPLAIN DEMAND PAGING WITH ILLUSTRATIVE EXAMPLE
b)EXPLAIN FIFO PAGE REPLACEMENT ALGORITHM WITH AN EXAMPLE
15a)DISCUSS ANY TWO DISK SCHEDULING ALGORITHMS
b)EXPLAIN ANY ONE DIRECTORY STRUCTURE
16 WRITE SHORT NOTES ON
a)FREE SPACE MANAGEMENT
b)SEMAPHORES
c)COMPACTION
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