HTTP

Question 1

What is a client?

Answer 1

The one making the request

Question 2

What is a server?

Answer 2

Software that accepts request / and can have it do something

Question 3

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

Answer 3

GET method

Question 4

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

Answer 4

Post/HTTP method
Request target
HTTP version

Question 5

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

Answer 5

Protocol version
Status Code
Status Text

Question 6

What are HTTP headers?

Answer 6

header: a case-insensitive string followed by a colon (‘:’) and a value whose structure depends upon the header.
Head of the request / allows users to send additional information that the system might need

Question 7

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

Answer 7

MDN

Question 8

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

Answer 8

NO /not required

the information can be sent in the URL instead of the body

Question 9

What is AJAX?

Answer 9

Ajax allows you to request 
data from a server and 
load it without having to 
refresh the entire page. 
/

Question 10

What does the AJAX acronym stand for?

Answer 10

Asynchronous JavaScript And XML.

Question 11

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

Answer 11

XMLHttpRequest

Question 12

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

Answer 12

onload

Question 13

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

Answer 13

because of prototyping