Computer Networking
One important characteristic of the hub architecture of ARC-net is

directionalized transmission
alternative routing
None of these
access control and addressing
multiple virtual networks

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Computer Networking
The main difference between TCP and UDP is

UDP is a datagram where as TCP is a connection oriented service
TCP is an Internet protocol where as UDP is an ATM protocol
All of these
UDP is connection oriented where as TCP is datagram service
None of these

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