Computer Networking
A required characteristic of an online real-time system is:

no delay in processing
offline batch processing
All of these
None of these
more than one CPU

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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?

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
Forwards the switch to the first available link

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