Computer Networking
IEEE project 802 divides the data link layer into an upper _____ sublayer and a lower _____ sublayer.

None of these
LLC, MAC
HDLC, PDU
PDU, HDLC
MAC, LLC

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Computer Networking
What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

Floods the network with the frame looking for the device
Forwards the switch to the first available link
Drops the frame
Sends back a message to the originating station asking for a name resolution

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