1a. If cell A1 equals 1, the function returns Bad. 1b. If cell A1 equals 2, the function returns Good. 1c. If cell A1 equals 3, the function returns Excellent. 1d. If cell A1 equals another value, the function returns No Valid Score. Here's another example. 2a.
In information technology, a protocol is the special set of rules that end points in a telecommunication connection use when they communicate. Protocols specify interactions between the communicating entities. Download this free guide.
Transmission Control Protocol/Internet Protocol (TCP/IP) is the backbone of the Internet and the true language computers use to talk to each other. Essentially it's a set of standards for sending information from a computer's network card, through transmission lines to another network card.