What is AJAX?
Ajax is a technique for loading data into part of a page without having to refresh the entire page.
What does the AJAX acronym stand for?
Asynchronous JavaScript And XML
Which object is built into the browser for making HTTP requests in JavaScript?
XMLHttpRequest.
What event is fired by XMLHttpRequest objects when they are finished loading the data from the server?
load event
Bonus Question: An XMLHttpRequest object has an addEventListener() method just like DOM elements. How is it possible that they both share this functionality?
Because they both support it and load content to the webpage.