Computer Networking
The channel in the data communication model can be

None of these
All of these
telephone lines
radio signals
postal mail service

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Computer Networking
What does the passive command provide to dynamic routing protocols?

Stops the router from receiving any dynamic updates.
Stops an interface from sending or receiving periodic dynamic updates.
Stops an interface from sending periodic dynamic updates but not from receiving updates.
Stops the router from sending any dynamic updates.

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