Which of the following best describes the protocol used on the internet?

The protocols of the Internet are open and used by all devices connected to the network

Explanation:  

There are billions of devices connected to the Internet, and hundreds of different kinds of devices: laptops, tablets, phones, refrigerators, handheld credit card readers, and so on. Protocols (standards) ensure that the variety of devices interact with each other smoothly.  There are a lot of protocols! The Internet was designed with several layers of abstraction that sort the protocols according to what part of the process they support.

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