Which of the following is an example of a web protocol for pushing notifications from server to client? MCQ with Answer and Explanation

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Which of the following is an example of a web protocol for pushing notifications from server to client?

A. WebSocket

B. Web Push API

C. All of the above

D. Server-Sent Events

Answer: Option C

Solution (By JKSSB Mock Tests)

Web Push API, SSE, and WebSocket all enable server-to-client notifications, though they differ in implementation and use cases.

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What does the acronym AJAX stand for?

A. Asynchronous Java and XML

B. Asynchronous JavaScript and XML

C. Advanced JavaScript and XHTML

D. Automated JavaScript and XML

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Correct Answer: Option B

Explanation:
AJAX stands for Asynchronous JavaScript and XML, a technique for creating asynchronous web applications that exchange data with the server without reloading the page.

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Which of the following is a markup language used to define the structure of data, often used in web syndication (e.g., RSS)?

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B. YAML

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Correct Answer: Option D

Explanation:
XML is a markup language commonly used for RSS feeds and other data formats, though JSON is also used.

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What mechanism does a web application employ to securely preserve user identity state variables on the server side, linking them via a unique ID stored in a client cookie?

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Correct Answer: Option D

Explanation:
Session management saves detailed user states securely on the server and provides the client a temporary session identifier token to reference on subsequent visits.

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