Classical

Computer Networks - Network Fundamentals

11:  

A network that contains multiple hubs is most likely conigured in which topology ?

A. Mesh
B. Tree
C. Bus
D. Star
 
 

Option: B

Explanation :
Tree topology is a variation of star topology. Tree topology consists ofmultiple hub, one is primary hub and remaining are secondary hubs.

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12:  

 A packet-switching network

A. is free
B. can reduce the cost of using an information utility
C. allows communications channel to be shared among more than one user
D. Both (b) and (c)
 
 

Option: D

Explanation :

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13:  

 IEEE Project 802 divides the data link layer into which upper sublayer and which lower sublayer ?

A.

LLC, MAC

B.

MAC, LLC 

C.

PDU, HDLC

D.

HDLC, PDU 

 
 

Option: A

Explanation :

IEEE project 802 divides the data link layer into two sub layer logical link control (LLC) and Medium access control (MAC).

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14:  

One important characteristics of the hub architecture of ARC - net is

A.

directionalized trasmission

B.

access control and addressing

C.

multiple virtual networks

D.

alternate routing

 
 

Option: A

Explanation :

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15:  

 Which of the following device is used with an X-25 network to provide service to asynchronous terminals ?

A.

Repeater

B.

Bridges

C.

Gateway

D.

Packet assembled

 
 

Option: D

Explanation :

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