New change control procedures dictate that system maintenance windows be shown to each user after logging into the system using ssh or telnet. Updating which file or files will accomplish this task?

The message of the day file (/etc/motd on AIX) is read and printed to the user's terminal by the login subsystem after successful authentication, and this applies to both SSH and telnet sessions automatically. Placing maintenance window notices in this file ensures every interactive login session sees the message without requiring any per-user configuration changes. This behavior is a built-in, standard feature of the AIX and POSIX login process.

The user default attributes file (/etc/security/user) defines account policy parameters such as password rules and login restrictions, not post-login display messages.

There are no standard AIX system files referred to as 'user and admin system alert files' that provide automated post-login message display to SSH and telnet users.

There is no standard AIX mechanism called 'var daily message files' that displays messages to users upon login via SSH or telnet.