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Ajax Interview Questions and Answers

  Difficulty Level: AllBeginnerIntermediateExpert

Ques 1. What's AJAX ?

Ques 2. Who's Using Ajax ?

Ques 3. Should I consider AJAX?

Ques 4. Does AJAX work with Java?

Ques 5. Won't my server-side framework provide me with AJAX?

Ques 6. Where should I start?

Ques 7. Did Adaptive Path invent Ajax? Did Google? Did Adaptive Path help build Google's Ajax applications?

Ques 8. Is it possible to set session variables from javascript?

Ques 9. What do I need to know to create my own AJAX functionality?

Ques 10. Do I really need to learn JavaScript?

Ques 11. Do Ajax applications always deliver a better experience than traditional web applications?

Ques 12. What JavaScript libraries and frameworks are available?

Ques 13. What is the difference between proxied and proxyless calls?

Ques 14. Should I use XML or text, JavaScript, or HTML as a return type?

Ques 15. Are there Usability Issues with AJAX?

Ques 16. Are there any frameworks available to help speedup development with AJAX?

Ques 17. Is Adaptive Path selling Ajax components or trademarking the name? Where can I download it?

Ques 18. Should I use an HTTP GET or POST for my AJAX calls?

Ques 19. How do I debug JavaScript?

Ques 20. How do I provide internationalized AJAX interactions?

Ques 21. Some of the Google examples you cite don't use XML at all. Do I have to use XML and/or XSLT in an Ajax application?

Ques 22. When do I use a synchronous versus a asynchronous request?

Ques 23. How do I handle concurrent AJAX requests?

Ques 24. What do I do on the server to interact with an AJAX client?

Ques 25. Whats with the -alpha in the install instructions?

Ques 26. How do I submit a form or a part of a form without a page refresh?

Ques 27. How do I test my AJAX code?

Ques 28. What exactly is the W3C DOM?

Ques 29. When will HTML_AJAX have a stable release?

Ques 30. What parts of the HTML_AJAX API are stable?

Ques 31. What Browsers does HTML_AJAX work with?

Ques 32. Is the server or the client in control?

Ques 33. Is Ajax just another name for XMLHttpRequest?

Ques 34. How do I abort the current XMLHttpRequest?

Ques 35. What is the minimum version of PHP that needs to be running in order to use HTML_AJAX?

Ques 36. Why does HTML_AJAX hang on some server installs?

Ques 37. How do I get the XMLHttpRequest object?

Ques 38. Are there any security issues with AJAX?

Ques 39. What about applets and plugins ?

Ques 40. Why did you feel the need to give this a name?

Ques 41. Is AJAX code cross browser compatible?

Ques 42. Techniques for asynchronous server communication have been around for years. What makes Ajax a new approach?

Ques 43. Is Ajax a technology platform or is it an architectural style?

Ques 44. How do I handle the back and forward buttons?

Ques 45. How does HTML_AJAX compare with the XAJAX project at Sourceforge?

Ques 46. What browsers support AJAX?

Ques 47. How do I send an image using AJAX?

Ques 48. Will HTML_AJAX integrate with other Javascript AJAX libraries such as scriptaculous ? How would this integration look like?

Ques 49. When should I use an Java applet instead of AJAX?

Ques 50. What kinds of applications is Ajax best suited for?

Ques 51. Does this mean Adaptive Path is anti-Flash?

Ques 52. Where can I find examples of AJAX?

Ques 53. What is the XMLHttpRequest object?

Ques 54. Does Ajax have significant accessibility or browser compatibility limitations? Do Ajax applications break the back button? Is Ajax compatible with REST? Are there security considerations with Ajax development? Can Ajax applications be made to work for users who have JavaScript turned off?

Ques 55. How do I access data from other domains to create a mashup with Java?

Ques 56. Does Java have support for Comet style server-side push?

Ques 57. How do I create a thread to do AJAX polling?

Ques 58. Is the XMLHttpRequest object part of a W3C standard?

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