Which protocol is used to link all the devices in the IoT? A. TCP/IP B. Network C. UDP D. HTTP

Which protocol is used to link all the devices in the IoT? A. TCP/IP B. Network C. UDP D. HTTP
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A. TCP/IP 
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The network layer consists of which hardware devices? A. Router B. Bridges C. Switches D. All of the above

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___ layer perform the host addressing and packet routing. A. Application layer B. Transport layer C. Network layer D. Link layer

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