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?

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

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Computer Networking
The packets switching concept was first proposed

All of these
in the late 1980s for the Defense Ministry of US.
in the late 1950s for Defense Ministry of US
None of these
in the early 1960s for military communication systems, mainly to handle speech

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Computer Networking
The research and development department at your office has been experimenting with different technologies to help improve the performance of the network. One group has been examining the use of a broadband network versus a based band network. Select the correct statement about broadband and baseband.

Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Baseband refers to local area networks, and broadband refers to wide area networks.
Broadband networks carry several channels on a single cable, whereas in a baseband network several cables carry one channel
Baseband operates at a standard bit rate, whereas broadband may operate at different rates as needed
Baseband networks carry a single channel on a single cable, whereas broadband networks carry several channels on a single cable

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