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

3 only
2 and 3 only
1 and 4
2 only

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Computer Networking
The network layer, in reference to the OSI model, provide

the interface between the X.25 network and packet mode device
data link procedures that provide for the exchange of data via frames that can be sent and received
the virtual circuit interface to packet-switched service
None of these
All of these

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