Which of the following is an example of a web browser extension? MCQ with Answer and Explanation

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Which of the following is an example of a web browser extension?

A. AdBlock

B. Google Search

C. Chrome Web Store

D. Firefox Monitor

Answer: Option A

Solution (By JKSSB Mock Tests)

AdBlock is a popular browser extension that blocks advertisements. The Chrome Web Store is a store for extensions, not an extension itself.

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Question #1

Which of the following is a protocol for real-time communication over HTTP?

A. All of the above

B. Long Polling

C. WebRTC

D. Server-Sent Events (SSE)

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Correct Answer: Option A

Explanation:
WebRTC, SSE, and Long Polling are all techniques or protocols that enable real-time or near-real-time communication over HTTP.

This question belongs to: Computer Internet and Web Technologies

Question #2

Which type of web architecture uses a 'Three-Tier' format to divide application logical structures cleanly?

A. Sender inbox, Gateway router, and Recipient junk folder

B. Presentation tier (Browser), Application tier (Server logic), and Data tier (Database)

C. Local router, WAN switch, and Global satellite interface

D. HTML file, CSS style script, and JavaScript dynamic loader

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Correct Answer: Option B

Explanation:
A standard three-tier web application architecture separates concerns into the presentation layer (UI), the application logic tier, and the database storage tier.

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Question #3

Which element in a web application setup serves as a central logical script engine translating database contents into formatted web assets on the fly, typically called a CMS?

A. Static Web Page Layout Document

B. DNS Resolver Network Interface Router

C. File Transfer Protocol desktop bridge software

D. Content Management System (e.g., WordPress)

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Correct Answer: Option D

Explanation:
A Content Management System (CMS) is a server-side application platform that dynamically coordinates database content, templates, and permissions to publish and manage web pages.

This question belongs to: Computer Internet and Web Technologies

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