Question

Which of the following is true of the SSH protocol? Choose all that apply.

A. SSH is a layer 3 (IP layer) protocol.
B. SSH supports multiple authentication schemes including public key authentication.
C. SSH does not provide message integrity, but only provides authentication and message encryption.
D. SSH does not authenticate the server to the client.

Answer 1

SSH supports multiple authentication schemes, including public key authentication, and it does provide message integrity. However, it is not a layer 3 protocol but operates at layer 7, and it does authenticate the server to the client.

Step-by-step explanation:

The student is asking which statements are true of the Secure Shell (SSH) protocol. Here are the accurate points:

• B. SSH supports multiple authentication schemes including public key authentication.
• C. SSH does provide message integrity, in addition to authentication and message encryption.

Contrary to the options provided:

• SSH is not a layer 3 (IP layer) protocol; it operates at the application layer, which is layer 7 in the OSI model.
• SSH does authenticate the server to the client, which is a crucial part of establishing a secure connection.