Node js

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Unit - 4

Yogayuvetha S

India

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Node js


Node jsVersion en ligne Unit - 4 par Yogayuvetha S 1 What does AJAX stand for? a Asynchronous JavaScript and XML b Advanced Java and XML c Automated JavaScript Access d Application Java and XML 2 Which object is used in JavaScript to implement AJAX functionality? a HttpRequest b XMLHttpRequest c AJAXRequest d DOMParser 3 Which method of XMLHttpRequest is used to initialize a request? a send() b setRequestHeader() c open() d connect() 4 What is the default value of the readyState property when a request is created? a 0 b 1 c 2 d 4 5 Which readyState value indicates that the request is complete and the response is ready? a 0 b 2 c 3 d 4 6 Which method sends the request to the server in AJAX? a load() b fetch() c send() d post() 7 What is the correct HTTP status code for a successful AJAX request? a 200 b 400 c 404 d 500 8 What is the purpose of onreadystatechange in XMLHttpRequest? a To open the request b To send headers c To handle response updates d To define URL path 9 In PHP, which superglobal is used to read data from an AJAX GET request? a $_DATA b $_INPUT c $_GET d $_POST 10 Which of the following is an advantage of using AJAX? a Slower page loads b Full page reload required c Increased server load d Partial page update without reload