3X0-101 : Linux Installation and Configuration (Level 1)

3X0-102 : Linux System Administration (Level 1)

3X0-103 : Linux Networking (Level 1)

3X0-104 : Linux Security, Privacy & Ethics (Level 1)

3X0-201 : Core Concepts and Practices (Level 2)

3X0-202 : Apache Webserver

3X0-203 : Samba Resource Sharing

3X0-204 : Sendmail Mail Systems