Download GTU BE/B.Tech 2019 Winter 6th Sem New 2160710 Distributed Operating System Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 6th Sem New 2160710 Distributed Operating System Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VI (New) EXAMINATION ? WINTER 2019
Subject Code: 2160710 Date: 12/12/2019

Subject Name: Distributed operating system

Time: 02:30 PM TO 05:00 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 distributed operating system and give its applications. 03
(b) Explain Remote procedure call (RPC). 04
(c) Explain the major issues in designing a distributed operating system. 07

Q.2 (a) List the various issues in designing load balancing algorithm. 03
(b) Explain various types of file sharing semantics. 04
(c) Explain mutual exclusion in distributed operating system. 07
OR
(c) Explain process migration and its related issues in heterogeneous system. 07
Q.3 (a) Define the following terms related to distributed file systems: file
replication, file caching, fault tolerance.
03
(b) State the desirable features of a good message passing system. 04
(c) What is consistency model in shared memory system? Explain strict,
sequential and causal consistency model.
07
OR
Q.3 (a) What is thread? Explain different models for organizing the thread in brief. 03
(b) Name and explain the various strategies used to handle deadlocks in
distributed systems briefly.
04
(c) What is DNS? Differentiate the DNS with respect to its design in normal OS
and DOS.
07
Q.4 (a) Describe Java RMI components. 03
(b) Explain thrashing and false sharing in distributed shared memory. 04
(c) Sketch and explain the architecture of Web based system. 07
OR
Q.4 (a) Which are the characteristics features of system oriented names in naming
system?
03
(b) Differentiate tightly coupled and loosely coupled multiprocessor system. 04
(c) Explain the replication for web hosting systems and replication of web
applications with example.
07
Q.5 (a) List the related issues in designing human oriented names. 03
(b) Differentiate symmetric and asymmetric cryptosystem. 04
(c) Explain the architecture of distributed shared memory with its design and
implementation issues.
07
OR

Q.5 (a) List common goals of computer security. 03
(b) Explain SUN network file system with its architecture. 04
(c) Explain various types of attacks on computer system. 07

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