Question

Please answer the following question. (Answer only if you are really sure. Please don't guess). Thank you

Select the correct statement(s) regarding centralized (deterministic) access control on a LAN.

		a. a centralized node manages the medium access of all connected nodes through polling, tokens, etc.
		b. CSMA/CD or CSMA/CA are always required to prevent data collisions
		c. switch Ethernet is an example of centralized/deterministic access control
		d. all of the above are correct

Full-duplex (FDX) communications can only be achieved on an analog telephone network (i.e., FDX cannot be accomplished for digital circuits due to the probability of data collisions).

True

False

Answer 1

which protocol layer defines the process by which LAN devices can access the shared medium?

Answer :

a. MAC

Explanation :

The medium access control (MAC) sublayer defines the process by which LAN devices can access the shared medium.

select the correct statements(s) regarding centralized acccess control on a LAN.

Answer :

a. a centralized node manages the medium access of all connnected nodes through polling, tokens etc.

Explanation :

A centralized node manages the medium access of all connnected nodes through polling, tokens etc.

CSMA must be used as a decentralized control.

Switch Ethernet is an example of decentralized access control.