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Distributed Systems

Description: This Test will definitely help you to Clear your basic concepts in Distributed Systems
Number of Questions: 25
Created by:
Tags: DI Distributed Systems System Security Engineering System Engineering Distributed File System Computer Architect Data Communication & Networks Information Technology
Attempted 0/25 Correct 0 Score 0

The storage can be classified as _____________

  1. volatile storage

  2. non-volatile storage

  3. stable storage

  4. all of the above


Correct Option: D

NIS stands for

  1. Network Information Service

  2. Network Intelligent Server

  3. National Infomatics

  4. None of these


Correct Option: A

NFS stands for

  1. Network File System

  2. New File Sever

  3. Net fault server

  4. None of these


Correct Option: A

Both T0, T1 are measured with ________ in Cristian's algorithm.

  1. different CLK

  2. same CLK

  3. ambiguous

  4. none of these


Correct Option: B

There is no problem, if client crashes in _________

  1. stateless servers

  2. stateful servers

  3. both (1) and (2)

  4. none of these


Correct Option: A

There is no limit on opening the file in _______

  1. stateless server

  2. stateful server

  3. both (1) and (2)

  4. none of these


Correct Option: B

File lockinf is/are possible in

  1. stateful servers

  2. stateless servers

  3. both (1) and (2)

  4. none of these


Correct Option: B

No server space is wasted in

  1. stateless server

  2. stateless server

  3. both (1) and (2)

  4. none of these


Correct Option: A

No updates are possible in

  1. immutable files

  2. mutable files

  3. unix semantics

  4. none of these


Correct Option: B

all or nothing property in

  1. mutable files

  2. Immutable files

  3. Transactions

  4. None of these


Correct Option: C

changes are visible

  1. Session semantics

  2. Unix semantics

  3. Transactions

  4. None of these


Correct Option: C

In two levels naming, files have ________

  1. Symbolic name

  2. Binary name

  3. Both 1 and 2

  4. None of these


Correct Option: C

WORM stands for

  1. Write Once Read Many

  2. Write Over Real Memory

  3. Write Only Real Memory

  4. None of these


Correct Option: A

Messages per entry in Centralized

  1. 2

  2. 1

  3. 3

  4. 4


Correct Option: A

it cannot be changed is called as

  1. Immutable

  2. Mutable

  3. Both 1 and 2

  4. None of these


Correct Option: A

In the upload download model, the file service provides operations like

  1. Read

  2. Write

  3. Both 1 and 2

  4. None of these


Correct Option: A

_______ is a specification of what the file system offers to its clients.

  1. File service

  2. Directory Service

  3. Data service

  4. None of these


Correct Option: A

To solve consistency problem ___ algorithm is used.

  1. write through

  2. write before

  3. write after

  4. none of these


Correct Option: A

One process is elected as co-ordinator in

  1. centralized algorithm

  2. distributed algorithm

  3. circular algorithm

  4. none of these


Correct Option: A

In which transparency the path name gives no hint as to where the file is located.

  1. Location transparency

  2. Name Transpareny

  3. File Transparency

  4. None of these


Correct Option: C

What is /are the advantage(s) of replication?

  1. Availability

  2. Reliability

  3. Response time

  4. All the above


Correct Option: D

In Cristians Algorithm,

  1. time server is passive

  2. time server is active

  3. both (1) and (2)

  4. none of these


Correct Option: A

In the perfect CLK,

  1. dc/dt >1

  2. dc/dt =1

  3. dc/dt<1

  4. none of these


Correct Option: B

Every operation on a file is instantly visible to all process in ____

  1. Unix semantics

  2. Session Semantics

  3. Immutable files

  4. None of these


Correct Option: B

A system, in which files can be moved without their names changing, is said to have

  1. Location independency

  2. Location dependency

  3. Name dependency

  4. None of these


Correct Option: C
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