Finished Dramatic OSPF LABS.

This OSPF technology-lab topic is the interesting and lots of things to understand and remember for LAB exams.
Practical studies Vol I and TCP/IP vol I is very good reference for theory.
But Cisco, OSPF Command and Configuration Handbook By: William R. Parkhurst is the one need to reference for commands.
Even finished those practice Labs, I still don't know some topic and don't remember.
I will have to give some more time to do it again after other technology Labs.