What is the operational goal of a web browser's 'JavaScript Engine' (such as Google's V8 engine inside Chrome)? MCQ with Answer and Explanation

Question

What is the operational goal of a web browser's 'JavaScript Engine' (such as Google's V8 engine inside Chrome)?

A. To parse, interpret, compile, and execute JavaScript code scripts rapidly into machine instructions natively within the browser client

B. To manage physical fiber optic cable transmissions

C. To route incoming email attachments through proxy servers

D. To render structural CSS layout designs cleanly

Answer: Option A

Solution (By JKSSB Mock Tests)

The JavaScript engine is a specialized component that executes interactive client-side programming code, dynamically modifying the webpage UI based on user actions.

This question belongs to: Computer Internet and Web Technologies

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Question #1

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Which specific design model defines the organizational framework where multiple localized client browsers access centralized web data files hosted on global high-capacity servers?

A. The Client-Server Architecture Model

B. The Unlinked hardware layout framework

C. The Monolithic isolated system design

D. The Peer-to-Peer direct mesh configuration

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Correct Answer: Option A

Explanation:
The World Wide Web relies on a client-server architecture where client web browsers send resource requests over the network to remote web servers, which process and return the requested data.

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Question #2

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Which of the following is a protocol used for sending email notifications from a web server to an administrator?

A. FTP

B. HTTP

C. SNMP

D. SMTP

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Correct Answer: Option D

Explanation:
SMTP is used for sending email, including notifications from web servers to administrators.

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Question #3

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Which type of search engine compiles and blends search results from multiple individual underlying search engines simultaneously to provide a unified output list?

A. Semantic Engine

B. Crawler-based Engine

C. Meta-search Engine

D. Directory Engine

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Correct Answer: Option C

Explanation:
A meta-search engine does not crawl web pages directly; instead, it passes queries to other search engines (like Google, Bing) and aggregates their results.

This question belongs to: Computer Internet and Web Technologies

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