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?

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

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Computer Networking
A WATS arrangement

is always less expensive than flat-rate service
None of these
is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
is never less expensive than flat-rate service
is less expensive than flat-rate service only when the number of calls is large and the duration of each is short

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Computer Networking
Which of the following characteristic(s) is/are suited to the PSS applications?

widely dispersed terminals and access to international packets switched services
bursty traffic and low communications intensity
None of these
Multiple remote host or applications accessed by a single local access circuit terminal and circuit
All of these

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