Exam XK0-005 topic 1 question 64 discussion

D. id_rsa.pub The public authentication key, id_rsa.pub, is typically used to set up passwordless login, also known as SSH key-based authentication. In this scenario, the junior administrator has generated public and private authentication keys, and they need to be moved to the remote servers to set up passwordless login. The public key, id_rsa.pub, is usually copied to the remote server and added to the ~/.ssh/authorized_keys file on the remote server. This allows the local system to authenticate with the remote server using the private key, id_rsa, without requiring a password.