What is the primary function of the 'Subject' line field inside a standard electronic mail header pane? MCQ with Answer and Explanation

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What is the primary function of the 'Subject' line field inside a standard electronic mail header pane?

A. To provide a short summary description of the email's topic or purpose before the message is opened

B. To clear out temporary junk sender addresses automatically

C. To list the encrypted server IP routing metrics

D. To host heavy multimedia file attachments safely

Answer: Option A

Solution (By JKSSB Mock Tests)

The Subject header provides descriptive text summarizing the main topic or intent of the email message for the recipient.

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Question #1

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Which element in a modern web landscape describes an online structural portal that indexes and categorizes multimedia video contents, allowing users to search, watch, and broadcast video streams globally over real-time internet routes?

A. FTP desktop file transfer utility

B. Outbound email transport routing block

C. Local history log dashboard

D. Video Sharing Platform (e.g., YouTube, Vimeo)

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Correct Answer: Option D

Explanation:
Video sharing platforms combine heavy media content storage, cloud transcoding architectures, and globally optimized video delivery networks over the internet.

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Question #2

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What is the purpose of the 'preload' attribute in an HTML tag?

A. To cache the resource

B. To load a resource after page load

C. To preload the page in the background

D. To indicate that a resource should be fetched early for performance

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Correct Answer: Option D

Explanation:
The preload attribute tells the browser to download a resource (like a font or script) as soon as possible, improving performance.

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Question #3

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Which file is placed on a website's server to give instructions to search engine web crawlers about which paths and directories should not be scanned or indexed?

A. index.html

B. sitemap.xml

C. robots.txt

D. htaccess

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Correct Answer: Option C

Explanation:
The robots.txt file is a standard text file used by websites to guide web robots and crawlers regarding which parts of the site they are allowed to index.

This question belongs to: Computer Internet and Web Technologies

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