Classify each of the followings in terms of unicast and multicast:

a. A student speaking to a friend on a wireless phone
b. ii. An executive speaking on a conference-phone with managers in different cities.
c. iii. A teacher lecturing in a classroom.
d. iv. A child playing with another child using a “walkie-talkie”.
e. v. The president addressing the nation on television
Consider inter-human communications.


a. This is supposed to be a unicast, although wireless data transfer is notoriously vulnerable to eavesdropping.
b. multicast
c. multicast
d. unicast that’s, again, subject to eavesdropping.
e. multicast

Computer Science & Information Technology

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