1. HMC operations: Creating/Modifying LPAR Profiles, Modifying resources (CPU, Memory & IOs) using DLPAR, Shutdown/Reboot/Dump collection using HMC.

2. OS installatioon/Migration: Must be aware of installation/migration using CD/DVD, NIM, mksysb restore, alt clone.

3. OS Patching/Packages installation: Must be aware of TL/SP upgrades using alt disk copy/ NIM, Package installation using smitty/ RPM etc.

4. Backup/Restore: Must be aware about all the standard methods like mksysb, tar, cp/scp, sftp/nfs, alt clone.

5. Troubleshooting: Must be aware about how to fix boot/fsck issue using maintenance modes. Errpt basic understanding & analysis.

6. USER/Group Administration: Must be aware about password policy/ changing ownership/ user profile/ configuring shell/ path, autossh configuration etc.