Question 1

The difficulty with multicasting from a practical point of view is ___________

Accepted Answer

A)  memory allocation is difficult
B)  server must establish a separate unicast session for each client
C)  the routers must support multicasting
D)  none of the mentioned C

Question 2

HTTP is __________

Accepted Answer

A)  a stateful protocol
B)  a stateless protocol
C)  a protocol that maintains the status of its connection with the client
D)  a stateless protocol that does not maintain the status of its connection with the client D

Question 3

_____is a framework for distributed objects on the Microsoft platform.

Accepted Answer

A)  CORBA
B)  DCOM
C)  DDObjects
D)  none B

Question 4

___ is a framework for distributed components using a messaging paradigm.

Accepted Answer

A)  CORBA
B)  DCOM
C)  DDObjects
D)  Jt

Question 5

The problem with unicast delivery is that the ___________

Accepted Answer

A)  memory allocation is difficult
B)  server must establish a separate unicast session for each client
C)  the routers must support unicasting
D)  the clients must be close to the server

Question 6

Multicasting delivers the content to ___________

Accepted Answer

A)  a single client
B)  all clients, regardless whether they want the content or not
C)  a group of receivers who indicate they wish to receive the content
D)  none of the mentioned

Question 7

An RPC (remote procedure call) is initiated by the:

Accepted Answer

A)  server
B)  client
C)  both (a)  and (b) 
D)  neither (a)  nor (b)

Question 8

RPC works between two processes. These processes may be:

Accepted Answer

A)  on the same computer
B)  on different computers connected with a network
C)  both (a)  and (b) 
D)  neither (a)  nor (b)

Question 9

To let a client have random access to a media stream with ___________

Accepted Answer

A)  the protocol used must not be stateless
B)  the server must support download
C)  the stream should give access rights to the client
D)  all of the mentioned

Exam 7: Network Communication and Frameworks for Distributed Systems