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

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

A. To clear out temporary junk sender addresses automatically

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

C. To host heavy multimedia file attachments safely

D. To list the encrypted server IP routing metrics

Answer: Option B

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

This question belongs to: Computer Internet and Web Technologies

No comments yet. Be the first to start the discussion!

Question #1 Report Error

Which of the following is a method of web authentication that uses a combination of username and password?

A. Basic authentication

B. Bearer token

C. Both Basic and Digest

D. Digest authentication

Correct Answer: Option C

Explanation:
Both Basic and Digest authentication are HTTP authentication schemes that rely on username/password, though they differ in security.

This question belongs to: Computer Internet and Web Technologies

Question #2 Report Error

Which of the following is a technique to improve web security by setting limits on what resources can be loaded?

A. Same-origin policy

B. CORS

C. Content Security Policy (CSP)

D. All of the above

Correct Answer: Option C

Explanation:
CSP is a security feature that allows a site to define a whitelist of allowed sources for content, mitigating XSS and other attacks.

This question belongs to: Computer Internet and Web Technologies

Question #3 Report Error

What is the purpose of the 'data-' prefix in HTML5 custom attributes?

A. To store private data for use in scripts

B. To specify accessibility information

C. To link to external resources

D. To define styles

Correct Answer: Option A

Explanation:
Custom data attributes (data-*) allow developers to store extra information on HTML elements that can be used by JavaScript.

This question belongs to: Computer Internet and Web Technologies