The show CDP neighbor command operates at the Data link layer (Layer 2)
Cisco Discovery Protocol (CDP) is a proprietary Data Link Layer protocol developed by Cisco Systems. It is used to share information about other directly connected Cisco equipment, such as the operating system version and IP address.
The answer you are looking for would be A. Hardware can be an external tool, where as software is an internal tool. Hope this helped!
Answer: The Internet started in the 1960s as a way for government researchers to share information. ... This eventually led to the formation of the ARPANET (Advanced Research Projects Agency Network), the network that ultimately evolved into what we now know as the Internet.
Have a nice day ahead :)
A callback function is code that's called, or run, when a specific event such as a click of the mouse, happens.Callback is another name for a callback function. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
