Q no 3: Do we need to use multiple access protocol in following cases? ⦁ Lab computers connected to a layer 2 switch through Ethernet cables (star topology) ⦁ Two computers in an Ethernet bus topology...

Q no 3:

Do we need to use multiple access protocol in following cases?
⦁ Lab computers connected to a layer 2 switch through Ethernet cables (star topology)
⦁ Two computers in an Ethernet bus topology
⦁ Your laptop is connected to BIIT network through a WiFi link
Answer, yes or no and then justify your answer. Also, mention the name of the multiple access protocol if your answer is yes.