Which OSI layer defines the standard for cabling and connectors

 ………… is a standard for security that is located at the network or packet processing layer of network communications, as opposed to the application layer.

If you are connected to your internal network, what should you check if you cannot connect to with servers on the internet

What is the technical name of a wireless network

Which of the following can help to detect transmission errors by appending specially calculated bits into the each segment of data