Computer Networking
Which fields are contained within an IEEE Ethernet frame header?1. Source and destination MAC address2. Source and destination network address3. Source and destination MAC address and source and destination network address4. FCS field

1 and 4
3 only
2 only
2 and 3 only

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Computer Networking
Contention is

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
the condition when two or more stations attempt to use the same channel at the same time

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