What type of communication does SSH provide over port 22?

SSH, or Secure Shell, provides encrypted communication over port 22. This protocol is designed to create a secure channel between two devices, typically a client and a server, allowing for safe data transmission over an unsecured network. By using strong encryption algorithms and secure key exchange mechanisms, SSH protects the integrity and confidentiality of the data being transmitted, making it significantly more secure than non-encrypted protocols.

The emphasis on encryption within SSH is critical for ensuring that sensitive information, such as passwords, commands, and files, is not readable by unauthorized parties during transit. This is especially vital in environments where data protection is a primary concern, such as remote system administration, file transfers, and secure network communications.

The other options indicate forms of communication that do not provide the same level of security; thus, they are not applicable when discussing SSH specifically, which is focused on secure, encrypted transmissions.