Which port does the secure version of Simple Mail Transfer Protocol (SMTPS) or SMTP over SSL commonly use by default? MCQ with Answer and Explanation

Question
Which port does the secure version of Simple Mail Transfer Protocol (SMTPS) or SMTP over SSL commonly use by default?
A. 80
B. 25
C. 465
D. 110
Answer: Option C
Solution (By JKSSB Mock Tests)
Port 465 is the historically standard port designated for running secure SMTP connections encrypted using SSL/TLS.
This question belongs to: Computer Internet and Web Technologies
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Question #1
Which standard network port is mapped default to secure Shell (SSH) access lines and secure file copies via SFTP?
A. 23
B. 22
C. 80
D. 21
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Correct Answer: Option B

Explanation:
Port 22 is the standard default port assigned globally to manage secure command-line console sessions and file transfers via SSH.
This question belongs to: Computer Internet and Web Technologies
Question #2
Which of the following is a protocol for secure remote login?
A. Telnet
B. HTTP
C. FTP
D. SSH
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Correct Answer: Option D

Explanation:
SSH (Secure Shell) is a cryptographic network protocol for secure remote login and command execution over an insecure network, unlike Telnet which is unencrypted.
This question belongs to: Computer Internet and Web Technologies
Question #3
What is the primary function of the 'Blink' engine used in modern versions of Google Chrome and Microsoft Edge?
A. To establish encrypted secure network handshakes
B. To filter out cross-site scripting (XSS) injection attempts
C. To compress incoming image files to save device RAM
D. To parse HTML and CSS code to visually render pages on the screen
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Correct Answer: Option D

Explanation:
Blink is a browser engine (rendering engine) that transforms raw code (HTML, CSS) into interactive visual frames on a user's screen.
This question belongs to: Computer Internet and Web Technologies
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