HTTP

Question 1

What is a client?

Answer 1

something requesting data from elsewhere

Question 2

what is a server

Answer 2

a host that holds the data or service

software that provides data for a request

Question 3

Which HTTP method does a browser issue to a web server when you visit a URL?

Answer 3

get

Question 4

What three things are on the start-line of an HTTP request message?

Answer 4

HTTP METHOD, request target, HTTP VERSION

Question 5

What three things are on the start-line of an HTTP response message?

Answer 5

HTTP VERSION, STATUS CODE, STATUS TEXT

Question 6

What are HTTP headers

Answer 6

information about the HTTP, additional info

Question 7

Where would you go if you wanted to learn more about a specific HTTP Header?

Answer 7

MDN documentation

Question 8

Is a body required for a valid HTTP request or response message?

Answer 8

no

Question 9

What is AJAX?

Answer 9

asyncrhonous javascript retrieve data for the user without having to navigate elsewhere

Question 10

What does the AJAX acronym stand for?

Answer 10

asyncrhonous javascript and XML

Question 10

Which object is built into the browser for making HTTP requests in JavaScript?

Answer 10

XMLHttpRequest

Question 11

What event is fired by XMLHttpRequest objects when they are finished loading the data from the server?

Answer 11

load event

Question 12

An XMLHttpRequest object has an addEventListener() method just like DOM elements. How is it possible that they both share this functionality?

Answer 12

It is a prototype chain