All I can say is that 5 days aren’t enough. Juniper should reconsider the necessary time for the CJNR course. There are lots of knowledge to cover. Labs take a considerable amount of time if you want to assimilate the steps and not only copy what’s requested.
We didn’t cover the multicast course as we ran out of time. I need to study BGP, routing policy, multicast and firewall filter by myself.