1. var xhttp, xmlDoc, txt, x, i; xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { xmlDoc = this.responseXML; txt = ""; x = xmlDoc.getElementsByTagName("QUESTION"); for (i = 0; i < x.length; i++) { txt = txt + x[i].childNodes[0].nodeValue + " "; } document.getElementById("demo").innerHTML = txt; } }; xhttp.open("GET", "questions.xml", true); xhttp.send();

2. How can you send cookies in CORS Ajax call ?

3. AJAX is used to create a very _____ web interface.

4. How can you stop jQuery AJAX response from being cached?

5. Which object shares a powerful set of methods that can be used to expedite communications between the client and server?

6. Can the XMLHttpRequest object be disabled via browser settings?

7. Which answer is correct in order to send the following data with request?

8. Why would a public api return a non valid json like this? for(;;); {'key1':val1,'key2': 'val2'}

9. Which parameter to request.open() are correct?

10. Which is true to convert AJAX JSON response into object?

11. Which is true about asynchronous request?

12. Correct way to disable register button while request is processing?

13. To check if DOM element 'currentDiv' don't have any child nodes, we can use which one of the following conditions?

14. Which method is NOT supported by the XMLHttpRequest object?

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

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

17. choose the option that shows the output to the console log

18. The readyState property in onreadystatechange event equal to 1 means ?

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

20. Which will not execute request asynchronously provided usernameRequest object already exists?

21. Choose the best statement for the expression JSON.stringify(jsObj);

22. What does the status == 404 means ?

23. In an ajax request function callback you have the following code $('#childdiv').html(data); choose the most probable reason why a previous delegated 'click' event no longer functions

24. Which object.method is responsible for writing text to current web page?

25. Which can be used to display 'inProcess.png' image while processing request?

26. Which will change the class of XHTML element having ID of 'username'?

27. function loadDoc() { varxhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 3 &&this.status == 200) { console.log(this.responseText); } }; xhttp.open('GET', ;'cd_catalog.xml', true); xhttp.send(); }

28. Which is not 'document' object methods?

29. Choose the best answer to describe ‘Deferred objects’

30. Which method is used for cross domain AJAX calls?

31. For the code fragment function x(a,b,e,d,c){ c=new XMLHttpRequest; c.open(e||'get',a); c.onload=b; c.onerror=error; c.send(d||null) } Choose the option that best describes the parameter d

32. Can we make a HTTP POST Ajax call?

33. For the code fragment below, function ajax(a,b,c) { c=new XMLHttpRequest; c.open('GET',a); c.onload=b; c.send() } Choose the option that best describes the parameter c

34. Which is NOT a valid method in the key/value pair to configure ajax request in jquery.ajax()?

35. What does the getAllResponseHeaders() function do ?

36. For the following code fragment function Foo() { this.data = 42, document.body.onclick = this.method; } Foo.prototype.method = function() { console.log(this.data); }; choose the option that shows the output to the console log

37. For the following code fragment foo(function(r) { // code }); Choose the correct description of the ‘function(r)’

38. Which method can be used to assign multiple event handlers?

39. Which XMLHttpRequest Object method returns all the header information?

40. Which is correct for the term 'Progressive enhancement'?

41. Which is General HTTP headers?

42. Which is HTTP response headers?

43. The responseText or responseXML property of the XMLHttpRequest ____?

44. For the code fragment below function foo() { var httpRequest = new XMLHttpRequest(); httpRequest.open('GET', '/echo/json'); httpRequest.send(); return httpRequest.responseText; } var result = foo(); What will be the value of ‘result’

45. The browser will put 'text' that the server returns in which of the following Request Object property?

46. Fill the correct blanks in following code: Function processXhrChange() { // Check readyState to make sure the XMLHttpRequest has been fully loaded if (Xhr.readyState == ______ ) { // Check status code from server for 'OK' if ( Xhr.status == ______ ) { // Process incoming data // Update our hit counter Hit = hit + 1; } else { // Request had a status code other than 200 Alert ('There was a problem communicating with the server\n'); } }

47. Which property of XMLHttpRequest object holds its status?

48. Can ActiveXObject work on browsers like Chrome and Firefox?

49. Which statement is true about following code? $.ajax({ method: 'GET', url: 'test.js', dataType: 'script' });

50. Which method can be used to delete node from DOM tree?

51. Which numbers, in callback function of request object, can be tested against request.readyState to make sure that server has finished processing request?

52. Which jQuery AJAX function is used to set default values for future AJAX requests?

53. Which is true for asynchronous requests and response?

54. Which javascript functions can be used to convert JSON string into object?

55. Which benefit can AJAX provide to Web Applications?

56. Which is the correct way to assign events to HTML elements using JavaScript?

57. Which request object method can be assigned a callback function which will be called every time the server updates the browser on the request its processing?

58. How to use Basic Auth with jQuery and AJAX?aja

59. Which may be a disadvantage of using AJAX?

60. Which is not supported in AJAX?

61. How to make a cross-domain Ajax call?

62. Which is true about jQuery.get() method?

63. Which technology is NOT used in AJAX?

64. Your ajax requests are giving you cross site scripting issues, choose the best method below to get around this

65. How do you know that an AJAX request has completed?

66. After all referenced files are loaded and parsed, the browser triggers the _____ event?

67. For the following code fragment object.property(); choose the option that is correct

68. Correct way to implement GET request using AJAX?

69. Which callback hooks is not provided by jQuery AJAX?

70. Which is valid for addEventListener() method?

71. This __ event tells the browser to call the checkUsername() function when the user leaves the username field on the form.

72. .................... stores a function (or the name of a function) to be called automatically each time the readyState property changes.

73. Which statement is true for AJAX graceful degradation?

74. If an AJAX request made using jQuery fails,

75. How does Crockford's json2.js libary support Graceful Degradation?

76. Choose the most correct statement to describe Graceful Degradation.

77. Which is HTTP request headers?

78. Which is not a callback hooks provided by $.ajax()?

79. Difference between XMLHttpRequest and ActiveXObject? variable = new XMLHttpRequest(); variable = new ActiveXObject('Microsoft.XMLHTTP');

80. How many status of the XMLHttpRequest are there?

81. Which JavaScript DOM traversal method works with an XML Document object?

82. Which JavaScript DOM traversal methods work with an XML Document object?

83. To get a list of all elements with class='intro' which can be used?

84. __ function returns a JavaScript object that represents an XHTML element

85. To prevent DOM based XSS attacks when JSON is returned in response, which of the following is not correct?

86. Which answer is correct to send following data with request?

87. LiveWire JavaScript is also called server-side _____.

88. Which is not a valid XMLHttpRequest Property?

89. Which readyState Object Status is not correct?

90. Which method is available for XMLHttpRequest?

91. Which is not an XMLHttpRequest Method?

92. The jQuery AJAX methods .get(), .post(), and .ajax() all require which parameter to be supplied?

93. How to perform a synchronous AJAX request in jQuery?

94. By default, all AJAX requests are sent asynchronously.

95. If something goes wrong at the server __ property of request object tell us about it.

96. Can an AJAX response set a cookie?

97. Which JavaScript object performs asynchronous interaction with the server?

98. Which XMLHttpRequest properties are correct?

99. Which is not a valid data type that AJAX expects to get from server?

100. A callback function is a function passed as a parameter to another function.