What occurs during the communication process after SSH session establishment?

After an SSH (Secure Shell) session is established, the critical aspect of the communication process is that all communication between the client and server is encrypted using the session key agreed upon during the initial handshake process. This encryption ensures that sensitive data, including commands and responses, is protected from eavesdropping, man-in-the-middle attacks, and other potential vulnerabilities.

During the SSH session establishment, the client and server agree on encryption algorithms and generate a session key. This key is used to encrypt all data transmitted during the session. As a result, any information exchanged remains confidential and secure, preventing unauthorized access and maintaining the integrity of the communication.

The encryption provided by SSH is a fundamental feature that distinguishes it from other protocols, allowing secure remote administration and file transfers over insecure networks. This capability is particularly crucial in environments where data sensitivity and security are paramount.

Other options do not reflect the core functionality of SSH. For example, transmitting data in plaintext contradicts the purpose of SSH. Using passwords for communication is not accurate as SSH primarily relies on public/private key pairs for secure authentication, although passwords can be an option. While logging commands for auditing is a best practice in maintaining access records, it is not a fundamental characteristic of the SSH protocol itself.