- AXML
- BJSON
- CNone of the options
- DAny
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Answer: a) Magnetic field
Explanation: The magnetic field is the region around a magnet where its magnetic force can be detected.
Answer: d) Magnetometer
Explanation: A magnetometer is a device used to measure the strength and direction of a magnetic field.
Answer: d) Lodestone
Explanation: Lodestone is a naturally occurring magnetized mineral that is made up of magnetite.
AJAX stands for Asynchronous JavaScript and XML. It is a web development technique used to create asynchronous web applications by exchanging data with a server behind the scenes, without requiring a full page reload.
The open() method in AJAX is used to initialize a new request. It specifies the HTTP method, the URL of the server, and other optional parameters before sending the request.
The Same-Origin Policy in AJAX restricts cross-origin requests by preventing web pages from making requests to a different domain than the one that served the web page, enhancing security.
JSON, in the context of AJAX, stands for JavaScript Object Notation. It is a lightweight data interchange format used to transmit data between a client and a server.
The $.getJSON() method in jQuery is used to retrieve JSON data from the server using a GET request. It simplifies the process of making asynchronous requests and handling JSON responses.