What does the abbreviation LED represent in screen backlighting technology? MCQ with Answer and Explanation

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What does the abbreviation LED represent in screen backlighting technology?

A. Liquid Emitting Diode

B. Light Emitting Diode

C. Light Electronic Display

D. Low Energy Diode

Answer: Option B

Solution (By JKSSB Mock Tests)

LED stands for Light Emitting Diode. It is a semiconductor light source that emits light when current flows through it.

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Question #1

In web terminology, what does XHTML stand for?

A. Extensible Hypertext Markup Language

B. Extended Hypertext Markup Language

C. Express Hypertext Markup Language

D. External Hypertext Markup Language

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Correct Answer: Option A

Explanation:
XHTML stands for Extensible Hypertext Markup Language. It is a hybrid between HTML and XML and is a stricter, more XML-based version of HTML.

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Question #2

In client-to-host web transactions, what does HTTP stand for?

A. Hypertext Transfer Protocol

B. Hyperlink Transfer Protocol

C. Hypertext Transmission Protocol

D. Hypermedia Transfer Protocol

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Correct Answer: Option A

Explanation:
The abbreviation HTTP stands explicitly for Hypertext Transfer Protocol, setting file-exchange parameters over decentralized networks.

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Question #3

What is the full form of the abbreviation HTML?

A. Hypertext Markup Language

B. Hypermedia Markup Language

C. Home Text Markup Language

D. Hyperlink Markup Language

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Correct Answer: Option A

Explanation:
HTML stands for Hypertext Markup Language, the standard formatting layout language for constructing web documents.

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