Here is couple of Juniper notes:
1) How to recover Juniper device password when having console and power access
2) Config wipe-out (or save), current config lotion: /config/juniper.conf.gz, DIrectory for configs to load: /var/home/remote for more.
3) Management IP: EX,
3) Software upgrade
4) If making changes to the a system run this commands before and after the change as checkout.
6) When setting a Juniper switch: Initial, Basics, Intermediate, Advanced