What is the primary function of Telnet?

What is the primary function of Telnet?

• A. To allow remote communication with devices using a command-line interface.
• B. To securely transfer files.
• C. To perform DNS queries.
• D. To route packets in the network.

Answer: (A)

Telnet is designed to provide remote command-line access to another device. It establishes an interactive session over TCP (typically port 23) so you can type commands on your machine and have them executed on the remote system, with the output sent back to you in text form. This is why it’s described as offering remote login via a command-line interface. It's not meant for secure file transfer, which is handled by protocols like FTP or SFTP. It also doesn’t perform DNS queries (that’s the role of DNS protocols) or route packets (that’s what routing protocols and devices do). Also, Telnet’s transmissions are in clear text, so SSH is preferred when encryption and security are important.

Telnet is designed to provide remote command-line access to another device. It establishes an interactive session over TCP (typically port 23) so you can type commands on your machine and have them executed on the remote system, with the output sent back to you in text form. This is why it’s described as offering remote login via a command-line interface.

It's not meant for secure file transfer, which is handled by protocols like FTP or SFTP. It also doesn’t perform DNS queries (that’s the role of DNS protocols) or route packets (that’s what routing protocols and devices do). Also, Telnet’s transmissions are in clear text, so SSH is preferred when encryption and security are important.