What is the default port for FTP control connection? MCQ with Answer and Explanation

What is the default port for FTP control connection?
A. 21
B. 25
C. 20
D. 22
Answer: Option A
Solution (By JKSSB Mock Tests)
FTP uses port 21 for the control connection (commands) and port 20 for data transfer (active mode).

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Practice More Internet and Web Technologies Questions

Question #1
What is the function of an encryption certificate standard like SSL/TLS when integrated into e-commerce web channels?
A. To automatically build clean layout formatting patterns
B. To track site page view metadata collections
C. To accelerate processing speeds of graphic vector files
D. To establish cryptographic authentication and data scrambling to secure monetary transactions and logins

Correct Answer: Option D


Explanation:
SSL/TLS certificates authenticate web server identities and encrypt data streams, preventing hackers from reading sensitive credit card or login transmissions.

This question belongs to: Computer Internet and Web Technologies
Question #2
What mechanism does a web browser implement to store layout stylesheets and image files from visited websites inside device storage to avoid re-downloading them on subsequent visits?
A. Altering localized device hardware MAC address registries
B. Static FTP file catalog adjustments
C. Running outbound SMTP mail server delivery routines
D. Browser Caching

Correct Answer: Option D


Explanation:
Browser caching saves static website assets (like logos, CSS files, and scripts) to the local hard drive, reducing page load times and saving bandwidth during repeat visits.

This question belongs to: Computer Internet and Web Technologies
Question #3
Which of the following is a web standard developed by the World Wide Web Consortium (W3C)?
A. HTML
B. All of the above
C. CSS
D. XML

Correct Answer: Option B


Explanation:
W3C develops and maintains many web standards, including HTML, CSS, and XML.

This question belongs to: Computer Internet and Web Technologies