Computer Networking
The network layer, in reference to the OSI model, provide

the virtual circuit interface to packet-switched service
All of these
data link procedures that provide for the exchange of data via frames that can be sent and received
None of these
the interface between the X.25 network and packet mode device

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

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