70-640 Failed

Failed today with a 678, which I can only assume is 1 question from 700 out of 50 questions. Pretty discouraging. Need to be much stronger in DNS zoning and AD CS/FS/RMS.
I didn't lab much, just read the microsoft book and navigated to the tools to lay eyes on it and familiarize myself with the menus and options and such. No actual environment creation. Obviously not a successful strategy.
Wish I could just plug my brain in and **** information in, e.g. the matrix.
Have been having doubts about my choice of IT as a career, this certainly did not help.
I didn't lab much, just read the microsoft book and navigated to the tools to lay eyes on it and familiarize myself with the menus and options and such. No actual environment creation. Obviously not a successful strategy.
Wish I could just plug my brain in and **** information in, e.g. the matrix.
Have been having doubts about my choice of IT as a career, this certainly did not help.
Certification To-Do: CEH [ ], CHFI [ ], NCSA [ ], E10-001 [ ], 70-413 [ ], 70-414 [ ]
WGU MSISA
Start Date: 10/01/2014 | Complete Date: ASAP
All Courses: LOT2, LYT2 , UVC2, ORA1, VUT2, VLT2 , FNV2 , TFT2 , JIT2 , FMV2, FXT2 , LQT2
WGU MSISA
Start Date: 10/01/2014 | Complete Date: ASAP
All Courses: LOT2, LYT2 , UVC2, ORA1, VUT2, VLT2 , FNV2 , TFT2 , JIT2 , FMV2, FXT2 , LQT2
Comments
Current Certs: CCENT | MCTS | Network+
Currently Working On: Security+