Which of the following is an unsecure remote access protocol?

The correct answer is D. Telnet. Telnet transmits all data, including usernames and passwords, in clear text with no encryption, making it trivially interceptable on a network. It was widely used before secure alternatives existed. SSH (A) is Telnet's secure replacement, providing encrypted remote shell access.

Networking

Question

Options

ASSH
BHTTPS
CSFTP
DTelnet

How the community answered

(37 responses)

B
5% (2)
C
3% (1)
D
92% (34)

Explanation

Telnet transmits all data, including usernames and passwords, in clear text with no encryption, making it trivially interceptable on a network. It was widely used before secure alternatives existed. SSH (A) is Telnet's secure replacement, providing encrypted remote shell access. HTTPS (B) is encrypted web communication. SFTP (C) is the secure version of FTP running over SSH. Telnet (D) is the only option here that provides no encryption or authentication security.

Topics

#Remote access protocols#Network security#Telnet#Unsecure protocols

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