TCP and UDP are the two low-level network protocols that we have access to in Node.js. Either of these allows us to send and receive messages, but they differ in a couple of key areas. First, TCP needs to have a receiver and sender for the connection. Because of this, we can't just broadcast on a channel and not care whether anybody is listening.
Second, on top of TCP needing the handshake process, it also gives us guaranteed transmission. This means that we know when we send data that it should get to the other end (obviously, there are ways for this to fail, but we aren't going to look at that). Finally, TCP guarantees the order of delivery. If we send data on a channel to a receiver, it will get the data in the order that we sent ...
