Before Applying job posting in any websites or recruiting agencies or sending resumes to job recruiters or any other employment website you need to improve your skills on general knowledge, Aptitude, Puzzles, logical reasoning, general english, database, programming as per your job profile. Job recruiters or mostly preferring job candidates who are having more stuff in those categories mentioned above. So improving more skills on your job profile always boost up your career and your performance. Even hiring companies and job recruiters who are looking for many job posting websites actually they are looking and filtering on these activities. In these Ajax section you need to update more questions to perform well in front of job recruiters and companies. Ajax Interview questions are most important to score in interview, Update all questions to score well in all rounds in job interview.

Ajax interview questions and answers

Why Ajax test required for job stream?

Ajax kind of test is now important in job stream (Administration, IT software, software testing etc.).In Brightbrainy, you can practice online Ajax questions and answers with the explanations in order to face interview, competitive exams like (TCS, Wipro, Infosys, Dell, etc.)

Where fresher and teens can get online Ajax question and answers with an explanation?

In bright brainy, students can learn and practice Ajax question and answers that it would be strengths, their current academic and its gives path to future career. Here you can find online test Ajax questions and answers (technical, computer science, sample Tcs, Infosys,Wipro and IT) with explanations for fresher which improve skills to face interview. Brightbrainy provides sample Ajax questions and answers with detailed explanation and it would be ease to understand ,Ajax question and answers available for free download PDF .

Bright brainy offers lots of solved Ajax questions

Here you can find lots of Ajax question and answers with detailed descriptions. You can download free eBook pdf Ajax question and answers.

1)
What is Ajax ?

Ajax is a set of client side technologies that provides asynchronous communication between user interfaces and web server . So the advantages of using Ajax are asynchronous communication, minimal data transfer and server is not overloaded with unnecessary load.

2)
What is the fundamental behind Ajax ?

XmlHttp Request is the fundamental behind Ajax . This allows the browser to communicate toa back and server asynchronously. XmlHttprequest object allows the browser to communicate with server with out posting the whole page and only sending the necessary cdata asynchronously.

3)
How do we use XMLHttpRequest object in JavaScript?

Below is a code snippet, which shows how to use XMLHttpRequest object. In this code snippet, we are sending a GET request on the local IIS . Below is the explanation of the code snippet according to the numbers specified in the code snippet?

1, 2, 3, 4 –This is like checking which is this browser and create the objects accordingly. XMLHttpRequest objects have different ways of technical implementation according to different browsers. In Internet explorer it is an activex object but in other browsers its XMLHttpRequest. So if windows. XMLHttprequest does not return null then we can create XMLHttpRequest object. If it returns null then we can try creating the activex object Microsoft. XMLHttp object. In case it fails probably then probably we have an older version of XML that is MSXML2. So in the error handling we will try to create the MSXML2 object.

5 - In this snippet, we OPEN the connection to the local host server and specify what type of request we are using. In this case, we are using the GET method

6 – Finally, we make a request to the server

7 – Here we get the request sent by the server back to the client browser. This is a blocking call as we need to wait to get the request back from the server. This call is synchronous that means we need to wait for the response from the server.

4)
Can you explain Scriptmanager control in Ajax?

Scriptmanager control is the central heart of Ajax. They manage all the Ajax related objects on the page Some of the core objectives of sciptmanager control are as follows:

  • Helps load core Ajax related script and library.
  • Provides access to web services.
  • ASP.NET authentication, role and profile services are loaded by scriptmanager control.
  • Provided registration of server controls and behaviors.
  • Enable full or partial rendering of a web page.
  • Provide localization features.
5)
What is the use of update panel in Ajax?

Update panel is a component which enables sections of ASP.NET page to be partially rendered without a post back.