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Unicast
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Multicast
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Broadcast
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Scattercast
EXPLANATION
Unicast: traffic, many streams of IP packets that move across
networks flow from a single point, such as a website server, to a single
endpoint such as a client PC. This is the most common form of
information transference on networks.
Broadcast: Here, traffic
streams from a single point to all possible endpoints within reach on
the network, which is generally a LAN. This is the easiest technique to
ensure traffic reaches to its destinations.
This mode is mainly
utilized by television networks for video and audio distribution. Even
if the television network is a cable television (CATV) system, the
source signal reaches to all possible destinations, which is the key
reason that some channels’ content is scrambled. Broadcasting is not
practicable on the public Internet due to the massive amount of
unnecessary data that would continually reach at each user’s device, the
complications and impact of scrambling and related privacy issues.
Multicast:
In this method traffic recline between the boundaries of unicast (one
point to one destination) and broadcast (one point to all destinations).
And multicast is a “one source to many destinations” way of traffic
distribution, means that only the destinations that openly point to
their requisite to accept the data from a specific source to receive the
traffic stream.
SOURCE
https://www.esds.co.in/blog/difference-between-unicast-broadcast-and-multicast/#sthash.sqHC51wG.dpbs
