Most common commercial tools for Network-centric jobs?
I'm trying to get a better feeler for what most or at least what may be considered the most common set of enterprise commercial tools utilized by organizations when considering network/NOC type roles?
I know that's not a simple questions and perhaps it's not the right one either, but I've been very centered on the knowledge I gained from CCNA and felt it was appropriate to then also start playing around with Juniper stuff. It dawned on me that I don't actually know what's being used in the industry when it comes to the field.
The CCNA has always given me the impression that everything is CLI-based but looking over some things on Cisco's site has given me a different impression.
I am aiming to step up onto an entry position under networking and I feel like it'd be better to have at least have some minor familiarity with what's being used in the industry.
Again, I know this is not an easy thing to answer and this question can likely be answered in many different ways depending on a lot of factors (e.g. type of business). However, humor me and at least let me know what you as a professional in the field have encountered and have seen heavily used? Is it always Cisco? Do you always use IOS? Is it sometimes Juniper? Is it a mix of many other brands?