GTU BE 6th Semester 163101 Operating System Design Summer 2018 Question Paper

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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VI (OLD) – EXAMINATION ? SUMMER 2018
Subject Code:163101 Date:03/05/2018
Subject Name:Operating System Design
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.
Q.1 (a) Define Operating System. Draw and explain the block diagram of system
kernel.
07
(b) What is File System? Explain Unix file system in detail. 07

Q.2 (a) Draw and explain Complete Process State Transition Diagram in details. 07
(b) Explain various data structures related to process subsystem and file subsystem. 07
OR
(b) Explain how disk blocks are allocated in UNIX with appropriate example. 07

Q.3 (a) Define Buffer Catch with merit and demerit. 07
(b) Describe Structure of Disk Inode? What is the use of Inode. Explain Inode in
detail.
07
OR
Q.3 (a) Explain Scheduling with short, medium and long-term scheduler. 07
(b) What is procedure for reading & writing disk blocks? Write simple algorithm
for the same.
07

Q.4 (a) Explain Read and Write System call. 07
(b) Explain Block Read Ahead algorithm. 07
OR
Q.4 (a) Explain the unlink system calls with it algorithm 07
(b) Explain Bread and Breada algorithms. 07

Q.5 (a) What is Shell? Explain System Boot and Init process. 07
(b) Explain the following commands in Unix OS. 1) chmod 2) ls 3) mkdir 07
OR
Q.5 (a) What is Signals? Explain the handling of Signals by Kernel. 07
(b) Explain the following commands in Unix OS. 1) rmdir 2) pwd 3) grep 07
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