Which of the following will not execute request asynchronously provided usernameRequest object already exists?

Choose the statement that best describes the role of the success ‘key’

The readyState property in onreadystatechange event equal to 1 means ?

choose the option that shows the output to the console log

(function worker() { $.ajax({ url: 'ajax/test.html', success: function(data) { $('.result').html(data); }, complete: function() { setTimeout(worker, 5000); } }); })();

By default, browsers do not support cross domain AJAX requests.

Ajax can be used to open a connection from the server to the browser without the browser making an explicit request.

True or false? A GET request submitted through Ajax can never cause the server to delete data.

If an Ajax request loads JSON-formatted responseText into the variable returnedData, what code will turn the data into a readable JSON object in modern browsers, including IE8 and above?

The onreadystatechange change event is used to invoke behavior when

What is the value of the "status" attribute of the completed XMLHttpRequest object if the Ajax request has pulled the response data from the browser cache? Consider only non-IE browsers.