Networking Multiple choice Questions and Answers-Network Models

41.	The OSI model consists of _______ layers.
a.	three
b.	five
c.	seven
d.	eight

Discuss

Answer: (c).seven

42.	The _______ model shows how the network functions of a computer ought to be organized.
a.	CCITT
b.	OSI
c.	ISO
d.	ANSI

Discuss

Answer: (b).OSI

43.	Why was the OSI model developed?
a.	Manufacturers disliked the TCP/IP protocol suite
b.	The rate of data transfer was increasing exponentially
c.	Standards were needed to allow any two systems to communicate
d.	None of the above

Discuss

Answer: (c).Standards were needed to allow any two systems to communicate

44.	When data are transmitted from device A to device B, the header from A's layer 4 is read by B's _______ layer.
a.	Physical
b.	Transport
c.	Application
d.	None of the above

Discuss

Answer: (b).Transport

45.	Layer 2 lies between the physical layer and the _______ layer.
a.	Network
b.	Data link
c.	Transport
d.	None of the above

Discuss

Answer: (a).Network

46.	The _______ layer lies between the network layer and the application layer.
a.	Physical
b.	Data link
c.	Transport
d.	None of the above

Discuss

Answer: (c).Transport

47.	As the data packet moves from the upper to the lower layers, headers are _______.
a.	Added
b.	Removed
c.	Rearranged
d.	Modified

Discuss

Answer: (a).Added

48.	The Internet model consists of _______ layers.
a.	Three
b.	Five
c.	Seven
d.	Eight

Discuss

Answer: (b).Five

49.	_______ is the protocol suite for the current Internet.
a.	TCP/IP
b.	NCP
c.	UNIX
d.	ACM

Discuss

Answer: (a).TCP/IP

50.	In OSI model dialogue control and token management are responsibilities of ?
a.	Session Layer
b.	Network layer
c.	Transport layer
d.	Data link layer

Discuss

Answer: (a).Session Layer