Question $1($f$)[8$ marks$]$

In the data link layer, we have a variety of Medium Access Control $($MAC$)$ protocols

to regulate access to a broadcast channel that is shared by many stations. For each of

the following MAC protocols, provide a brief description $($either algorithmic or

conceptual$)$ of how it works.

i$.$ ALOHA

ii$.$ Slotted ALOHA

iii. CSMA

iv$.$ CSMA$/$CD