Suppose you were charged with putting together a large LAN to support IP telephony (only) and that multiple users may want to carry on a phone call at the same time. Recall that IP telephony digitizes and packetizes voice at a constant bit rate when a user is making an IP phone call. How well suited are these four protocols for this scenario

TDMA: Time-division multiple access (TDMA) will operate effectively.

CSMA: Carrier-sense multiple access (CSMA)  will NOT operate properly.

Slotted Aloha: Slotted Aloha will NOT perform effectively.

Token passing: Token passing will operate effectively.

Explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question as follows:

Suppose you were charged with putting together a LAN to support IP telephony (only) and that multiple users may want to carry on a phone call at the same time. Recall that IP telephony digitizes and packetizes voice at a constant bit rate when a user is making an IP phone call. How well suited are these four protocols for this scenario?

TDMA:

CSMA:

Slotted Aloha:

Token passing:

Provide a brief explanation of each answer.

The explanation of the answers is now provided as follows:

TDMA: Time-division multiple access (TDMA) will operate effectively in this situation because it provides a consistent bit rate service of one slot every frame.

CSMA: Because of collisions and a changing amount of time to access the channel, Carrier-sense multiple access (CSMA)  will NOT operate properly in this situation. Also, the length of time it takes to access a channel is not limited.

Slotted Aloha: Just like CSMA, Slotted Aloha will NOT perform effectively in this situation because of collisions and a different amount of time to access the channel. Also, the length of time it takes to access a channel is limitless.

Token passing: Token passing will operate effectively in this case because each station has a turn to transmit once per token round, resulting in a service with an effectively constant bit rate.

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