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

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

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Computer Networking
Bus is

a continuous frequency capable of being modulated or impressed with a second signal
None of these
one or more conductors that some as a common connection for a related group of devices
a collection of interconnected functional units that provides a data communications service among stations attached to the network
the condition when two or more stations attempt to use the same channel at the same time

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Computer Networking
The main difference between TCP and UDP is

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

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Computer Networking
MAC is

None of these
a method access control technique or multiple-access transmission media
network access standard for connecting stations to a circuit-switched network
a method of determining which device has access to the transmission medium at any time
a very common bit-oriented data link protocol issued to ISO.

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