Distributed Computing System Set 4 MCQs

Q1 | In distributed file system,XDR stands for?

external data request

external device request

external data recovery

external data representation

Q2 | If file system is growing without affectingperformance of the system then this feature is called as?

union

portable

robust

scalability

Q3 | Storing file in makes itpermanently available

secondary memory

ram

register

dram

Q4 | Session file sharing semantics are suitablefor caching

complete folder

complete file

one byte

one block

Q5 | Network file system(NFS) is developedby?

sun microsystem

oracle

apple

honeywell

Q6 | The file once created can not be changed iscalled

rigid file

rex file

immutable file

robust file

Q7 | Remote Procedure Calls are used ____________

for communication between two processes remotely different from each other on the same system

for communication between two processes on the same system

for communication between two processes on separate systems

none of the mentioned

Q8 | To differentiate the many network services a system supports ______ are used.

variables

sockets

ports

service names

Q9 | RPC provides a(an) _____ on the client side, a separate one for each remote procedure.

stub

identifier

name

process identifier

Q10 | What is stub?

transmits the message to the server where the server side stub receives the message and invokes procedure on the server side

packs the parameters into a form transmittable over the network

locates the port on the server

all of the mentioned

Q11 | To resolve the problem of data representation on different systems RPCs define _____________

machine dependent representation of data

machine representation of data

machine-independent representation of data

none of the mentioned

Q12 | What is the full form of RMI?

remote memory installation

remote memory invocation

remote method installation

remote method invocation

Q13 | The remote method invocation __________

allows a process to invoke memory on a remote object

allows a thread to invoke a method on a remote object

allows a thread to invoke memory on a remote object

allows a process to invoke a method on a remote object

Q14 | A process that is based on IPC mechanism which executes on different systems and can communicate with other processes using message based communication, is called ________

local procedure call

inter process communication

remote procedure call

remote machine invocation

Q15 | What is not true about a distributed system?

it is a collection of processor

all processors are synchronized

they do not share memory

none of the mentioned

Q16 | What are the characteristics of a distributed file system?

its users, servers and storage devices are dispersed

service activity is not carried out across the network

they have single centralized data repository

there are multiple dependent storage devices

Q17 | What is not a major reason for building distributed systems?

resource sharing

computation speedup

reliability

simplicity

Q18 | What is a stateless file server?

it keeps tracks of states of different objects

it maintains internally no state information at all

it maintains some information in them

none of the mentioned

Q19 | What are the characteristics of the stateless server?

easier to implement

they are not fault-tolerant upon client or server failures

they store all information file server

they are redundant to keep data safe

Q20 | What are the advantages of file replication?

improves availability & performance

decreases performance

they are consistent

improves speed

Q21 | What are characteristic of NFS protocol?

search for file within directory

read a set of directory entries

manipulate links and directories

all of the mentioned

Q22 | What is the coherency of replicated data?

all replicas are identical at all times

replicas are perceived as identical only at some points in time

users always read the most recent data in the replicas

all of the mentioned

Q23 | The file once created can not be changed is called ___________

immutable file

mutex file

mutable file

none of the mentioned

Q24 | ______ of the distributed file system are dispersed among various machines of distributed system.

clients

servers

storage devices

all of the mentioned

Q25 | _______ is not possible in distributed file system.

file replication

migration

client interface

remote access