Download GTU B.Tech 2020 Winter 6th Sem 2160710 Distributed Operating System Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 6th Sem 2160710 Distributed Operating System Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VI (NEW) EXAMINATION ? WINTER 2020
Subject Code:2160710 Date:01/02/2021
Subject Name:Distributed operating system
Time:02:00 PM TO 04:00 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Define the following terms: file replication, file caching, fault tolerance.
03

(b) What is the goal to the build a distributed operating system?
04

(c) What are the difference between remote procedure call and local procedure call?
07
Write the steps to Execute the Remote Procedure Call.


Q.2 (a) Discuss about Reliable versus Unreliable Primitives.
03

(b) State the desirable features of a good message passing system.
04

(c) What is the significance of transparency in Distributed OS? List and explain types
07
of transparency in brief.




Q.3 (a) What is Marshaling and Un-marshaling of parameters?
03

(b) List the most common DOS architectures. Briefly explain any one.
04

(c) What is the process migration? Explain process migration in heterogeneous system.
07




Q.4 (a) Explain Sequential consistency model with reference to DSM.
03

(b) What is DNS? Explain What are the Main Functions of Domain Names?
04

(c) Name and Explain the Various strategies are used to handle deadlocks in
07
Distributed System.



Q.5 (a) Describe various Access Control Mechanism.
03

(b) Draw architecture of SUN Network File System.
04

(c) What are the various issues in designing load balancing algorithm? Explain any two
07
issues in detail.



Q.6 (a) Define: thrashing, false sharing and buffering.
03

(b) Explain any one process scheduling algorithm.
04

(c) Explain Java RMI. What are the components and processes of Java RMI execution?
07
Q.7 (a) List various methods used in catch management algorithms.
03

(b) Write the two approaches to attack a conventional encryption scheme.
04

(c) Sketch and explain the architecture of Web based system.
07



Q.8 (a) Explain asynchronous point to point message passing with example.
03
(b) Differentiate stateless server and state full server.
04
(c) Explain implementation issues in distributed shared memory system.
07

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