OK, I passed my pre-assesment exam with an 82% after about two days study. This JUNOS stuff is weird. I have worked with Cisco and Foundry, but nothing like Juniper routers. It resembles a Redcom PBX to me which helps a little. Waiting on my exam voucher. I will probably study for about another week or two before I take the exam. I'll keep the post up to date with my progress.
An expert is a man who has made all the mistakes which can be made.