Computer Networking
Terminals are used to

provide information for the manager
communicate management decisions to the physical system
None of these
collect data from the physical system
All of these

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Computer Networking
X.21 is

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

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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?

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

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