Computer Networking
The data-link layer, in reference to the OSI model, specifies

the virtual circuit interface to packet-switched service
None of these
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

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Computer Networking
Which of the following is true when describing an anycast address?

Packets addressed to a unicast address are delivered to a single interface.
This address identifies multiple interfaces and the anycast packet is only delivered to one address. This address can also be called one-to-one-of-many.
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 one-to-many addresses.

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Computer Networking
Demodulation is the process of

dividing the high-speed signals into frequency bands
converting digital signals to analog signals
None of these
converting analog signals to digital signals
combining many low speed channels into one high speed channel

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