Computer Networking
Baseband is

the simultaneous transmission of data to a number of stations
All of these
a signal all of whose energy is contained within a finite frequency range
None of these
transmission of signals without modulation

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Computer Networking
The packets switching concept was first proposed

in the late 1980s for the Defense Ministry of US.
None of these
in the late 1950s for Defense Ministry of US
All of these
in the early 1960s for military communication systems, mainly to handle speech

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

These are like private addresses in IPv4 in that they are not meant to be routed.
These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.
These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
Packets addressed to a unicast address are delivered to a single interface.

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