Computer Networking
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?

After broken links are reestablished
In an improperly implemented redundant topology
During high-traffic periods
When upper-layer protocols require high reliability

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Computer Networking
Demodulation is the process of

dividing the high-speed signals into frequency bands
converting digital signals to analog signals
converting analog signals to digital signals
combining many low speed channels into one high speed channel
None of these

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