Which of the following ports is the default telnet port?

The correct answer is D. 23. Telnet uses TCP port 23 by default. Telnet provides unencrypted remote terminal access and is considered insecure because credentials and data are transmitted in plaintext. It has been largely replaced by SSH (port 22). Ports 20/21 belong to FTP, and port 22 belongs to SSH.

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(56 responses)

A
5% (3)
B
2% (1)
C
4% (2)
D
89% (50)

Explanation

Telnet uses TCP port 23 by default. Telnet provides unencrypted remote terminal access and is considered insecure because credentials and data are transmitted in plaintext. It has been largely replaced by SSH (port 22). Ports 20/21 belong to FTP, and port 22 belongs to SSH.

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#Telnet#port numbers#protocol ports

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