Computer Networking
In geosynchronous orbit, satellite

moves faster than the earth's rotation so that it can cover larger portion of earth.
None of these
remains in a fixed position related to points on earth
remains in a fixed position so that as earth rotates, it can fully cover the earth
moves simultaneously

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

the virtual circuit interface to packet-switched service
data link procedures that provide for the exchange of data via frames that can be sent and received
All of these
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 unicast address?

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.
Packets addressed to a unicast address are delivered to a single interface.
These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.

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