1/2
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER IV • EXAMINATION SUMMER- 2017
Subject Code: 340701 Date: 27 04 -2017
Subject Name: Operating System
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Each question carry equal marks (14 marks)
Q.1

Which are the main services provided by O.S.
07


O.S.
07

What information is stored in PCB?




Q.2

List various types of O.S. Describe any two types.
07


O.S.
07

Step by Step explain the booting process of Windows XP.


XP

OR

Define the terms POST, CMOS, BIOS
07

POST, CMOS, BIOS
Q.3

Draw Process State Diagram and explain all the states.
07


Process State Diagram states
07

List types of CPU schedulers. Explain any one with proper example.


CPU schedulers

OR
Q.3

Explain SJF scheduling algorithm.
07


SJF scheduling algorithm
07

How do you determine the performance of a CPU scheduling algorithm? Which criteria are used to measure the performance?


CPU

Q.4

How are semaphores used as a solution to mutual exclusion?
07



07

Explain fixed partition memory management.

2/2

Fixed partition memory management

OR
Q.4

Differentiate between paging and segmentation.
07



07

What is a deadlock? How do deadlock arise?


Deadlock Deadlock

Q.5

List features of UNIX operating system. Explain any three.
07


UNIX
07

Explain Unix Commands: who, ps, kill, ls, more, wc and grep.


Unix Commands who, ps, kill, ls, more, wc grep.

OR
Q.5

Explain UNIX architecture and its directory structure.
07


UNIX architecture directory structure
07

Write shell script to read a number from the user and print the factorial of that number. Also check whether the given number is prime or not.


factorial