Socket.io

1. What is the benefit of transforming data into packets?

Packets are more cost- and data-efficient, and they’re easier to scale.

1. UDP is often refereed to as a connectionless protocol. Why is this?

Because it sends the data whenever it is ready without establishing a connection first.

1. Can a socket server application have multiple socket connections?

Yes if they’re associated with different client-side IP.Port pairs.

1. Can a socket connection application be connected to multiple socket servers?

Don’t know (yet).

1. Can an application be both a socket server and a socket connection?

Don’t know (yet).

Document the following Vocabulary Terms

• Observer Pattern: subjects maintain lists of observers and notify them of any state changes by calling methods

(will continue the rest)

• Listener

• Event Handler

• Event Driven Programming

• Event Loop

• Event Queue

• Call Stack

• Emit/Raise/Trigger

• Subscribe

• database