T1: Basic Administration and General Linux
T2: Distribution-specific Items (installation, configuration, init sequence, fs hierarchy, package management, GUI, tools)
(distributions listed below alphabetically)
T2a: Caldera
T2b: Debian
T2c: Pacific HiTech
T2d: Red Hat
T2e: Slackware
T2f: SuSE
et al.
T3: Advanced Administration & Troubleshooting
T4: Linux Internals
T5a: Windows Integration
T5b: Internet Server
T5c: Database Server
T5d: Security, Firewalls, Encryption
T5e: Kernel Internels & Device Drivers; Creating Distribution Packages