Question 1

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 ________

Accepted Answer

A)  local procedure call
B)  inter process communication
C)  remote procedure call
D)  remote machine invocation C

Question 2

What are the characteristics of the stateless server?

Accepted Answer

A)  easier to implement
B)  they are not fault-tolerant upon client or server failures
C)  they store all information file server
D)  they are redundant to keep data safe A

Question 3

What is a stateless file server?

Accepted Answer

A)  it keeps tracks of states of different objects
B)  it maintains internally no state information at all
C)  it maintains some information in them
D)  none of the mentioned B

Question 4

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

Accepted Answer

A)  stub
B)  identifier
C)  name
D)  process identifier

Question 5

The file once created can not be changed is called

Accepted Answer

A)  rigid file
B)  rex file
C)  immutable file
D)  robust file

Question 6

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

Accepted Answer

A)  machine dependent representation of data
B)  machine representation of data
C)  machine-independent representation of data
D)  none of the mentioned

Question 7

What is not true about a distributed system?

Accepted Answer

A)  it is a collection of processor
B)  all processors are synchronized
C)  they do not share memory
D)  none of the mentioned

Question 8

Remote Procedure Calls are used ____________

Accepted Answer

A)  for communication between two processes remotely different from each other on the same system
B)  for communication between two processes on the same system
C)  for communication between two processes on separate systems
D)  none of the mentioned

Question 9

What is not a major reason for building distributed systems?

Accepted Answer

A)  resource sharing
B)  computation speedup
C)  reliability
D)  simplicity

Question 10

What is the full form of RMI?

Accepted Answer

A)  remote memory installation
B)  remote memory invocation
C)  remote method installation
D)  remote method invocation

Question 11

What are characteristic of NFS protocol?

Accepted Answer

A)  search for file within directory
B)  read a set of directory entries
C)  manipulate links and directories
D)  all of the mentioned

Question 12

What is stub?

Accepted Answer

A)  transmits the message to the server where the server side stub receives the message and invokes procedure on the server side
B)  packs the parameters into a form transmittable over the network
C)  locates the port on the server
D)  all of the mentioned

Question 13

If file system is growing without affecting performance of the system then this feature is called as?

Accepted Answer

A)  union
B)  portable
C)  robust
D)  scalability

Question 14

What is the coherency of replicated data?

Accepted Answer

A)  all replicas are identical at all times
B)  replicas are perceived as identical only at some points in time
C)  users always read the most recent data in the replicas
D)  all of the mentioned

Question 15

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

Accepted Answer

A)  clients
B)  servers
C)  storage devices
D)  all of the mentioned

Question 16

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

Accepted Answer

A)  variables
B)  sockets
C)  ports
D)  service names

Question 17

What are the characteristics of a distributed file system?

Accepted Answer

A)  its users, servers and storage devices are dispersed
B)  service activity is not carried out across the network
C)  they have single centralized data repository
D)  there are multiple dependent storage devices

Question 18

The file once created can not be changed is called ___________

Accepted Answer

A)  immutable file
B)  mutex file
C)  mutable file
D)  none of the mentioned

Question 19

In distributed file system,XDR stands for?

Accepted Answer

A)  external data request
B)  external device request
C)  external data recovery
D)  external data representation

Question 20

Session file sharing semantics are suitable for caching

Accepted Answer

A)  complete folder
B)  complete file
C)  one byte
D)  one block

Exam 4: Distributed File System and Remote Procedure Calls