From 123-CBT Computer Based Training
CompTIA Linux 2004 Security 

...assword aging settings.
Identify characteristics of the
Pluggable Authentication Modules (
PAM) facility.
Identify features of the
Pluggable Authentication Module (PAM) modules.
Identify features of the pam_limits module in the Pluggable Authentication Module (PAM) facility.
Identify key aspects of removing user accounts.
Identify methods for disabling logins.
Identify considerations
more...
CompTIA Linux 2004 Security 

...assword aging settings.
Identify characteristics of the
Pluggable Authentication Modules (
PAM) facility.
Identify features of the
Pluggable Authentication Module (PAM) modules.
Identify features of the pam_limits module in the Pluggable Authentication Module (PAM) facility.
Identify key aspects of removing user accounts.
Identify methods for disabling logins.
Identify considerations
more...