I'm a systems guy with (some limited) networking knowledge. I'll be taking on some responsibilities on our Juniper (and some Arista) switches/routers. Is the JNCIA-JUNOS a good starting point?

As the title says - Our infra mostly uses JunOS. I'm better than most of my colleagues at networking in that I'll frequently troubleshoot and diagnose network issues from the systems perspective, but I can count the amount of times I've logged into a switch on one hand.

I'm looking for some good resources to "learn networking" from a JunOS perspective, as someone who already has a cursory knowledge of things like routing protocols and has some experience reading packet captures.

Thanks!