MCQ MU DC Sem 8 Sample questions PDF

Preview

Summary

TOPPER’S SOLUTIONS... Search of Another TopperThere are many existing paper solution available in market, but Topper’s Solution is the one which students will always prefer if they refer... ;) Topper’s Solutions is not just paper solutions, it includes many other important questions which are import...

Description

Distributed Computing

BE | SEM - 8

Distributed Computing

BE | SEM - 8

TOPPER’S SOLUTIONS ….In Search of Another Topper There are many existing paper solution available in market, but Topper’s Solution is the one which students will always prefer if they refer… ;) Topper’s Solutions is not just paper solutions, it includes many other important questions which are important from examination point of view. Topper’s Solutions are the solution written by the Toppers for the students to be the upcoming Topper of the Semester.

It has been said that “Action Speaks Louder than Words” So Topper’s Solutions Team works on same principle. Diagrammatic representation of answer is considered to be easy & quicker to understand. So our major focus is on diagrams & representation how answers should be answered in examinations.

Why Topper’s Solutions:  Point wise answers which are easy to understand & remember.  Diagrammatic representation for better understanding.  Additional important questions from university exams point of view.  Covers almost every important question.  In search of another topper.

“Education is Free…. But its Technology used & Efforts utilized which we charge” It takes lot of efforts for searching out each & every question and transforming it into Short & Simple Language. Entire Community is working out for betterment of students, do help us. Thanks for Purchasing & Best Luck for Exams

❤ Handcrafted by BackkBenchers Community ❤

Distributed Computing

BE | SEM - 8

If you don’t have BIG DREAMS and GOALS, you’ll end up working for someone who does. ---- Anonymous.

Distributed Computing

BE | SEM - 8

Syllabus: #

Module

1.

Introduction to Distributed Systems

1.

Details Contents

2.

Communication

1.

Characterization of Distributed Systems: Issues, Goals, and Types of distributed systems, Distributed System Models, Hardware concepts, Software Concept. 2. Middleware: Models of Middleware, Services offered by middleware, Client Server model

2. 3.

Synchronization

1.

2. 3.

4.

5.

6.

Resource and Process Management Consistency, Replication and Fault Tolerance Distributed File Systems and Name Services

1. 2. 1. 2. 1.

2.

3.

Layered Protocols, Interprocess communication (IPC): MPI, Remote Procedure Call (RPC), Remote Object Invocation, Remote Method Invocation (RMI) Message Oriented Communication, Stream Oriented Communication, Group Communication. Clock Synchronization, Logical Clocks, Election Algorithms, Mutual Exclusion, Distributed Mutual Exclusion-Classification of mutual Exclusion Algorithm, Requirements of Mutual Exclusion Algorithms, Performance measure. Non Token based Algorithms: Lamport Algorithm, Ricart–Agrawala‘s Algorithm, Maekawa‘s Algorithm Token Based Algorithms: Suzuki-Kasami‘s Broardcast Algorithms, Singhal‘s Heurastic Algorithm, Raymond‘s Tree based Algorithm, Comparative Performance Analysis Desirable Features of global Scheduling algorithm, Task assignment approach, Load balancing approach, load sharing approach Introduction to process management, process migration, Threads, Virtualization, Clients, Servers, Code Migration Introduction to replication and consistency, Data-Centric and Client-Centric Consistency Models, Replica Management. Fault Tolerance: Introduction, Process resilience, Reliable clientserver and group communication, Recovery. Introduction and features of DFS, File models, File Accessing models, File-Caching Schemes, File Replication, Case Study: Distributed File Systems (DSF), Network File System (NFS), Andrew File System (AFS) Introduction to Name services and Domain Name System, Directory Services, Case Study: The Global Name Service, The X.500 Directory Service Designing Distributed Systems: Google Case Study

Note: We have tried to cover almost every important question(s) listed in syllabus. If you feel any other question is important and it is not cover in this solution then do mail the question on [email protected] or Whatsapp us on +91-9930038388 / +91-7507531198

Distributed Computing

BE | SEM - 8

Copyright © 2016 - 2020 by Topper’s Solutions All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the publisher, except in the case of brief quotations embodied in critical reviews and certain other noncommercial uses permitted by copyright law. For permission requests, write to the publisher, addressed “Attention: Permissions Coordinator,” at the address below. Contact No: 7507531198 Email ID: [email protected] Website: www.ToppersSolutions.com

Multiple Choice Questions (MCQ)

www.BackkBenchers.com

Multiple Choice Questions (MCQ) 1.

A distributed system is a collection of _____________ computing elements that appears to its users as a single coherent system. a. Autonomous b. Dependent c.

All of these

d. None of these

2.

The distributed software that drives the distributed system, while providing transparency of heterogeneity at the platform level is _______________ a. Firmware b. Middleware c.

Distributed application

d. None of these

3.

In distributed system, each processor has its own ___________ a. clock b. local memory c. clock and local memory d. none of these

4.

_____________ is a protocol that one program can use to request a service from a program located in another computer on a network without having to understand the network's details a. Remote Method invocation(RMI) b. Stub c.

Driver

d. Remote Procedure Call (RPC)

5.

Below are the advantages of distributed system. Check one which you find incorrect. a. Reliability b. Inherent distribution c.

Modular expandability

d. Data redundancy

6.

CORBA is an example of ----a. Hardware b. Distributed OS c.

Firmware

d. Middleware

❤ Handcrafted by BackkBenchers Community

Page 2 of 71

Distributed Computing 7.

BE | SEM - 8

Network transparency is a combination of ----- and ----- transparencies. a. Replication ,mobility b. Concurrency, access c. Access, Location d. Replication, Performance

8.

Use of an electronic mail address such as [email protected] is an example of ------transparency. a. Location transparency & Access transparency b. Access transparency & Network Transparency c.

Network Transparency & Access Transparency

d. Location Transparency & Network Transparency

9.

____________ is/are protection against disclosure of information to unauthorized individuals. a. Reliability b. Confidentiality c.

Security

d. Authentication

10.

____________ models consider the types of computers and devices that constitute a system and their interconnectivity, without details of specific technologies. a. Fault tolerant b. Fundamental c. Physical d. Architectural

11.

_______________ and ___________ are two of the most commonly used forms of architectural model for distributed systems. a. Master-slave, Peer-to-peer b. Peer-to-peer, Client-server c.

Multi- tier, Peer-to-peer

d. Multi-slave, Multi-tier

12.

Distributed approach based objects are accessed via interfaces, with an associated _________ providing a specification of the methods defined on an object. a. Interface definition language (or IDL) b. Interface manipulation language (or IML) c.

Distributed definition language

d. Distributed manipulation language

❤ Handcrafted by BackkBenchers Community

Page 3 of 71

Distributed Computing 13.

BE | SEM - 8

Intel x86/Linux is an example of -----a. Middleware b. Platform c. Software d. Operating System

14.

The ___________ approach is prevalent – the Web and other Internet services such as FTP, news and mail as well as web services and the DNS are based on this model, as are filing and other local services. a. Multi-tier b. Peer-to-peer c.

3-Tier

d. client-server

15.

We have ten computers in the lab, we have ten processors with memories available for process an application and why not we use them as a single system to process an application. – Internet. This is an example of ___________ system. a. multicomputer b. multiprocessor c.

single computer

d. single processor

16.

__________ is not a distributed system model. a. Architectural b. Client-server c.

Interaction

d. Security

17.

RPC stands for _______________ a. Remote Process Call b. Remote Packet Call c.

Remote Place Call

d. Remote Procedure Call

18.

The client ____________ marshal the arguments in invocation requests and unmarshal exceptions and results in replies. a. stub b. driver c.

pointer

d. process

❤ Handcrafted by BackkBenchers Community

Page 4 of 71

Distributed Computing 19.

BE | SEM - 8

MapReduce and BigTable are components of ------------a. Google Infrastructure b. Microsoft Infrastructure c.

Server Infrastructure

d. Process Infrastructure

20.

_____________ consist of computer having multiple processors and memory that are connected through a high speed back plane over the mother board or a simple configuration is to have a high speed mother board into which CPU and memory cards can be inserted. a. Multicomputer system b. Singlecomputer system c.

Singleprocessor system

d. Multiprocessor system

21.

Network operating system runs on -------------------a. server b. every system in the network c.

both server and every system in the network

d. none of the mentioned

22.

The concept of multiple autonomous computers, having a private memory, communicating through a communication network is called as -----------------a. Parallel Computing b. Distributed Computing c.

Cloud Computing

d. None of these

23.

The _________ model is a distributed application structure that partitions task or workload between the providers of a resource or service, called servers, and service requesters called clients. a. Peer-to-peer b. Client-server c.

Hybrid

d. None of these

24.

The role of middleware is to ____________ a. enhance the distribution transparency that is missing in network operating systems. b. provide the replication transparency. c.

Provide the network transparency

d. Enchance the replication transparency

❤ Handcrafted by BackkBenchers Community

Page 5 of 71

Distributed Computing 25.

BE | SEM - 8

In _____________ computing, the underlying hardware consists of a collection of similar workstations closely connected by means of high speed LAN. a. Grid b. Network c.

Cube

d. Cluster

26.

In ____________ system, there is no sharing of main memory. a. Multiprocessor b. Singlecomputer c.

Singleprocessor

d. Multicomputer

27.

Virtual organization is observed as an issue in ___________ computing system. a. Grid b. Cluster c.

Cube

d. Network

28.

Distributed ___________ system is a set of information systems physically distributed over multiple sites, which are connected with some kind of communication network. a. Computing b. Pervasive c.

Networking

d. Information

29.

RESTful services are a part of __________ architecture. a. Layered b. Event based c. Resource based d. Object based

30.

____________________ is a concept that involves the passing of data between applications using a communication channel that carries self-contained units of information (messages). a. Message Oriented Middleware b. RPC c.

Connection Oriented Middleware

d. Connectionless Oriented Middleware

❤ Handcrafted by BackkBenchers Community

Page 6 of 71

Distributed Computing 31.

BE | SEM - 8

_____________ are central to the implementation of the asynchronous interaction model within MOM a. Stacks b. RPC c.

LAN

d. Queues

32.

A reference model developed to deal with all the communication issues using various levels is -----______________ a. ISO b. OSI c.

MOM

d. client-server

33.

The standard rules that govern the format, contents, meaning of the messages sent and delivered are collectively termed as ________________ a. Communication rules b. Connection-oriented c.

Communication-oriented

d. Communication protocols

34.

The telephone is a typical example of ________________ communication service. a. Connection-oriented b. Connectionless c.

Communication rules

d. Communication protocols

35.

Dropping a letter in mailbox is an example of making use of ____________ communication service. a. Connection-oriented b. Communication rules c.

Communication protocols

d. Connectionless

36.

Specific parameters of the communication protocol is negotiated when using __________- service. a. Connection-oriented b. Connectionless c.

Communication rules

d. Communication protocol

37.

Each layer in the OSI model provides a/an ___________ to the layer above it. a. Interface b. Protocol

❤ Handcrafted by BackkBenchers Community

Page 7 of 71

Distributed Computing c.

BE | SEM - 8

Network

d. Data link

38.

The __________ consists of a set of operations that together define the service a layer is prepared to offer. a. Interface b. Protocol c.

Data link

d. Network

39.

There are ________________ layers is OSI model. a. Nine b. Seven c.

Ten

d. Eleven

40.

The ____________ layer deals with standardizing how two computers are connected and the representation of binary levels. a. Data link b. Network c. Physical d. Presentation

41.

The application layer software adds an header to the front of the message and passes the resulting message across the interface to the _______________ layer. a. Transport b. Session c.

Network

d. Presentation

42.

__________________ layer of OSI model is responsible for real time streaming of data in various applications. a. Data Link b. Transport c.

Network

d. Application

43.

___________ layer of OSI model provides the means to detect and possibly correct transmission errors to keep a sender and receiver in the same pace. a. Data Link b. Transport

❤ Handcrafted by BackkBenchers Community

Page 8 of 71

Distributed Computing c.

BE | SEM - 8

Network

d. Application

44.

_____________ layer of OSI model contains the protocols to route the message for handling congestion. a. Data Link b. Transport c. Network d. Application

45.

______________ layer is one of the lower level protocols in OSI model. a. session b. Transport c. Network d. Application

46.

The transfer units used in physical layer of OSI model is -----------a. Frames. b. Units c.

Headers

d. Bits

47.

Grouping of bits into frames is done by ----------- layer in OSI model. a. Application b. Transport c.

Network

d. Data Link

48.

Checksum is computed in the frame by -------- layer of OSI model. a. Application b. Transport c.

Network

d. Data Link

49.

The process of choosing the best path to deliver the message from the sender to the receiver is called _____________ a. Hoping b. Path selection c.

Network

d. Routing

❤ Handcrafted by BackkBenchers Community

Page 9 of 71

Distributed Computing 50.

BE | SEM - 8

Upon receiving the message from application layer, the __________ layer breaks it into pieces for transmission, assigns each one a sequence number and the sends them all. a. Application b. Transport c.

Network

d. Data Link

51.

Providing the end to end communication without changing the original order is taken care by _________ layer of OSI model. a. Application b. Transport c.

Network

d. Data Link

52.

Internet protocol suite supports a connectionless transport protocol called ________. a. Transmission Control Protocol. b. Streaming Control Transfer Protocol. c.

Real-Time Transfer Protocol

d. Universal Datagram Protocol.

53.

___________ is a Connection oriented protocol. a. Transmission Control Protocol. b. Universal Datagram Protocol. c.

Streaming Control Transfer Protocol.

d. Real-Time Transfer Protocol

54.

User programs which do not need connection-oriented protocol uses -----a. Transmission Control Protocol. b. Streaming Control Transfer Protocol. c.

Real-Time Transfer Protocol

d. Universal Datagram Protocol.

55.

________________ is a framework protocol in the sense that it specifies packet formats for real time data without providing the actual mechanisms of guaranteeing data delivery. a. Transmission Control Protocol. b. Universal Datagram Protocol. c. Real-time Transfer Protocol. d. Streaming Control Transport protocol

56.

TCP stands for _______________ a. Transport Control Protocol

❤ Handcrafted by BackkBenchers Community

Page 10 of 71

Distributed Computing

BE | SEM - 8

b. Transmission Congestion Protocol c.

Transport Congestion Protocol

d. Transmission Control Protocol.

57.

SCTP stands for _______________ a. Secure Control Transport Protoco l. b. Secure Content Transmission Protocol c.

Streaming Control Transport Protocol.

d. Streaming Control Transmission Protocol.

58.

Transport protocols consists of ______________ a. Transport layer b. Network layer & Transport Layer c.

Network Layer

d. Transport Layer and Application layer

59.

Higher level protocols consist of _______________ a. All layers above session layer b. All layers above transport layer c.

All layers above networ...