Computer Networking
Carrier is

the condition when two or more sections attempt to use the same channel at the same time
a collection of interconnected functional units that provides a data communications service among stations attached to the network
None of these
One or more conductors that serve as a common connection for a related group of devices
a continuous frequency capable of being modulated or impressed with a second signal

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
MAC is

network access standard for connecting stations to a circuit-switched network
a method access control technique or multiple-access transmission media
a very common bit-oriented data link protocol issued to ISO.
a method of determining which device has access to the transmission medium at any time
None of these

ANSWER DOWNLOAD EXAMIANS APP