Web

Question 1

What does it mean to be RESTful?

Answer 1

RESTful is a design principle for network communication between client and server. Core principle: HTTP is stateless. Client-Server communication through a uniform interface

Question 2

What happens when you hit www.google.com and press enter?

Answer 2

1 ) Browser checks the DNS (hash of ip to domain name) records for the query.

2) OS cache -> Router cache -> ISP cache
3) ISP initiates DNS query
4) Browser starts TCP connection with server
5) Browser sends HTTP request
6) Servers sends HTTP response
7) HTML content loads

Question 3

What is TCP? When is it used? How does it work?

Answer 3

Transmission control protocol/Communication service.
It provides a way of communication between computers.
Data is sent in the form of packets, and TCP ensures that packets are assembled correctly to form image/document, etc…

Question 4

What is IFFE?

Answer 4

Immediate Invoked Function Expression.

Creates fresh environments.
Avoids polluting the global namespace.

signature:
(function ( ) { } );