Computer Networking
Which of the following is true when describing a multicast address?

Packets addressed to a unicast address are delivered to a single interface.
These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
Packets are delivered to all interfaces identified by the address. This is also called a one-to-many address.
Identifies multiple interfaces and is only delivered to one address. This address can also be called one-to-one-of-many.

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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
All of these
None of these
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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