1. What is a Web Socket?
It is a communication protocol where client and server can send data in either direction
2. Describe the Web Socket request/response handshake and what happens once the connection is established.
WebSocket handshake responseOnce the hands have been shook, a bidirectional communication lane opens where data transfer doesn’t have to conform to HTTP.
3. Web Sockets provide a standardized way for the server to send content to a client without first receiving a ____ from that client.
request from that client
1. What does the event handler io.on() do?
It listens for certain events in the event pool, then calls a callback function.
2. Describe some possible proof of life or proof that the code works as expected.
3. What does socket.emit() do?
Socket.emit() is method to publish data into the event pool
1. What is the difference between WebSocket and Socket.IO? (think Git and GitHub, or OAuth and Auth0).
WebSocket is a protocol for data transfer. Socket.IO is a platform for which we can actionably use the WebSocket protocol.
2. When would you use Socket.IO?
When you’d like an easy way to implement the WebSocket protocol into your app.
3. When would you use WebSockets?
When you want real-time, bidirectional communication between client and server.
1. What are a couple of key takeaways from this video?
OSI Model describes the standards for communication between computers.
1. Translate the gist of this video to a non-technical friend.
TCP is like when asking for and establishing permission to slide into someone’s DMs.