Rigorous Ajax Test - 44+ MCQs: Ajax Quiz: Test Your Expertise with Asynchronous JavaScript and XML

1. Which property is used to access the status code of an Ajax response?

statusCode

responseStatus

status

HTTPStatus

2. How does the 'same-origin policy' impact Ajax requests?

It ensures all requests are executed synchronously

It allows requests to any origin without restrictions

It restricts requests to the same origin for security reasons

It defines custom headers for cross-origin requests

3. Which attribute is used to set a timeout for an Ajax request?

timeout

delay

asyncTimeout

requestTimeout

4. Which attribute is used to set the content type of an Ajax request?

contentType

type

dataType

requestType

5. What does Ajax stand for?

Asynchronous JavaScript and XML

Advanced JavaScript and XML

Ajax is not an acronym

Automated JavaScript and XML

6. What is the role of the Ajax callback function?

To define the HTML structure of the page

To handle the server response after an asynchronous request

To initiate an Ajax request

To set up the initial configuration of XMLHttpRequest

7. In Ajax, what does the term 'cross-origin' refer to?

Multiple server requests in parallel

Requests sent using different HTTP methods

Accessing resources from a different domain

Simultaneous execution of multiple Ajax functions

8. What is the purpose of the same-origin policy in Ajax?

To restrict requests to a different domain for security reasons

To enable cross-origin resource sharing

To validate the content type of Ajax responses

To prevent caching of Ajax requests

9. Which object is commonly used to perform asynchronous requests in Ajax?

XMLHttpRequest

AjaxRequest

AsynchronousRequest

HTTPAsyncObject

10. Which JavaScript function is commonly used to handle errors in Ajax?

errorHandler()

handleError()

onError()

catchError()

11. What is the purpose of the XMLHttpRequest property 'responseText' in Ajax?

To store the HTML content of the current page

To store the raw server response as a string

To store the content type of the server response

To store the URL of the current page

12. What is the purpose of the XMLHttpRequest property 'responseType' in Ajax?

To define the request method

To set the content type of the request

To specify the type of data expected in the response

To indicate whether the request should be asynchronous or not

13. What does the term 'preflight request' mean in the context of Ajax?

A request sent before the main request to check server capabilities

A request to validate the status of the server

A request with pre-defined headers

A request sent to multiple servers in parallel

14. What is the role of the 'onabort' event in Ajax?

To handle errors during the request

To initiate an Ajax request

To monitor the change in the ready state of the request

To execute code when the request is aborted

15. What role does the 'onreadystatechange' event play in Ajax?

It triggers the Ajax request

It defines the response type

It handles the server response

It monitors the change in the ready state of the request

16. What security measure is used to prevent Cross-Site Request Forgery (CSRF) in Ajax?

The 'same-origin policy'

The 'async' attribute in the 'script' tag

The 'CORS' policy

The 'X-Requested-With' header

17. In Ajax, what is the purpose of the 'FormData' object?

To track the progress of the data transfer

To handle errors during the request

To initiate an Ajax request

To facilitate the sending of form data in the request

18. In Ajax, what is the purpose of the 'async' attribute in the 'script' tag?

To define the response type

To ensure the script is executed asynchronously

To set custom headers in the request

To handle errors during the request

19. What is the purpose of the XMLHttpRequest property 'onprogress' in Ajax?

To handle errors during the request

To monitor the change in the ready state of the request

To track the progress of the data transfer

To define the response type

20. What is the purpose of the 'Preflight request' in Ajax?

To execute code when the request is aborted

A preliminary request sent to check server capabilities before the main request

To track the progress of the data transfer

To initiate an Ajax request

Ajax MCQ Test 3