What is the default port number for HTTP? MCQ with Answer and Explanation

Question
What is the default port number for HTTP?
A. 25
B. 80
C. 443
D. 21
Answer: Option B
Solution (By JKSSB Mock Tests)
Port 80 is the default port for HTTP communication. Port 443 is for HTTPS, port 21 for FTP, and port 25 for SMTP.
This question belongs to: Computer Internet and Web Technologies
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Practice More Internet and Web Technologies Questions

Question #1
Which of the following is a web standard developed by the World Wide Web Consortium (W3C)?
A. All of the above
B. HTML
C. XML
D. CSS
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Correct Answer: Option A

Explanation:
W3C develops and maintains many web standards, including HTML, CSS, and XML.
This question belongs to: Computer Internet and Web Technologies
Question #2
What is the function of the 'Default Gateway' setting in a computer's local network configuration panel?
A. To clear out temporary cookie tracker entries automatically
B. To convert graphical web pages into text files
C. To act as the routing address that local data packets use to exit the local area network and access external networks like the internet
D. To serve as a high-speed email storage facility
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Correct Answer: Option C

Explanation:
The default gateway is the node or router on a computer network that serves as an access point to another network when an IP address does not match any local routes.
This question belongs to: Computer Internet and Web Technologies
Question #3
What is the function of the 'defer' attribute in a script tag?
A. To execute the script asynchronously
B. To prevent script from running
C. To load the script after page load
D. To delay script execution until the page has parsed
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Correct Answer: Option D

Explanation:
The defer attribute tells the browser to continue parsing the HTML while the script downloads, and execute it after the document is parsed, in order.
This question belongs to: Computer Internet and Web Technologies
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