Bharathiar University 2007 B.C.A Computer Application OPERATING SYSTEM- - Question Paper

IV SEMESTER B.C.A exam ,MAY 2007

OPERATING SYSTEM

TIME:3 HRS
MAX MARKS:80

SECTION-A
ans ANY 8 OF THE FOLLOWING(MARKS:8*3=24)

1.DEFINE AN OPERATING SYSTEM .DIFFERENTIATE ranging from ON-LINE AND OFF-LINE OPERATIONS
2.EXPLAIN ANY 3 SERVICES given BY THE OPERATING SYSTEM
3.WHAT IS PCB?EXPLAIN BRIEFLY
4.EXPLAIN THE various PROCESS SCHEDULERS
5.BRIEFLY discuss DEADLOCK RECOVERY
6.WHAT IS situation SWITCHING?
7.WHAT IS SEGMENTATION?EXPLAIN
8.EXPLAIN LINKED ALLOCATION METHOD FOR FILES
10.GIVE ANY 3 FEATURES OF UNIX OPERATING SYSTEM

SECTION-B
ans NY 4 OF THE FOLLOWING(4*14=56)
11.a)EXPLAIN DISTRIBUTED OPERATING SYSTEM ALONG WITH ITS ADVANTAGES
b)EXPLAIN SYSTEM CALLS

12a)EXPLAIN READER-WRITER issue
b)DiscUSS ANY 2 METHODS OF DEADLOCK PREVENTION

13a)EXPLAIN ANY four 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 2 DISK SCHEDULING ALGORITHMS
b)EXPLAIN ANY 1 DIRECTORY STRUCTURE

16 WRITE SHORT NOTES ON
a)FREE SPACE MANAGEMENT
b)SEMAPHORES
c)COMPACTION

Earning:   Approval pending.