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

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

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

These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.
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.
These are like private addresses in IPv4 in that they are not meant to be routed.

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Computer Networking
The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

A physical address that is assigned by the manufacturer
A physical address that is randomly assigned each time the computer is started
The logical domain address for the workstation
An alias for the computer name
A logical address that identifies the workstation

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