In local area network (LAN) topologies, the primary media access methods are: (Choose two.)
A . Contention
B . Negotiation
C . Kerberos
D . Token passing
Answer: AD
Explanation:
Media contention occurs when two or more network devices have data to send at the same time. Because multiple devices cannot talk on the network simultaneously, some type of method must be used to allow one device access to the network media at a time. This is done in two main ways: carrier sense multiple access collision detect (CSMA/CD) and token passing.