How I prepared for it.
First, I attended SANS live training last year in Vegas and then bought the bundle for 4 months which gave me a vpn access to their systems to practice/hacking.
Also SANS provides their "ondemand" access for the 4 months which is a recorded training for the course and of course Ed Skoudis is amazing.
GIAC provides two practice test exams as a prep for the real thing. It is a representative of the real exam but not the real exam.
I listened to all the recordings, practiced all the lab and capture the flag, reread all the five text books provided and prepared indexes for the exams since it is an open book.
Then launched for the exam which I managed to pass for the first time.
My next goal is to take the OSCP training and test but according to the reading I have done so far, it sounds like this is more challenging than the GPEN.
For those who have taken the OSCP and GPEN, what is your feel? Do I have a chance or no? I have no programming knowledge but the rest of the requirments, I can get well along.
I am currently working with BT4 and practicing all the tutorial provided by the offensive sec on the metasploit unleashed in my lab.