The correct answer is: C. Telnet
Telnet is a network protocol that allows a user to log in to a remote computer and execute commands on that computer. It is a text-based protocol, which means that all communication between the client and server is in the form of text.
Telnet is a very old protocol, and it is not very secure. All communication between the client and server is in plain text, which means that anyone who can intercept the traffic can see the username and password that the user is using to log in.
For these reasons, Telnet is not recommended for use in most cases. However, it can be useful in some situations, such as when you need to connect to a remote computer that does not have a web-based interface.
Here is a brief explanation of each option:
- FTP (File Transfer Protocol) is a protocol that allows users to transfer files between computers.
- IP (Internet Protocol) is a protocol that is used to route data packets across the Internet.
- HTTP (Hypertext Transfer Protocol) is a protocol that is used to transfer web pages between web servers and web browsers.
I hope this helps!