It's good with these sorts of things to simply get an understanding of the terminology used by these teams. Going through a guide like this won't get you 100% of the way, but it'll let you have conversations with someone over the phone.
IME, SRE roles are jack of all trades position, so you're not necessarily expected to be an expert in any one thing, which makes it easier to learn many things at the surface level, instead of learning a few things in depth. Which practically means that you will learn a lot on the job. This is especially true, since you're expected to learn some technology that's only seen internal to the company. So, showing they you have the ability to learn can perceived as much more important than specific knowledge.
IME, SRE roles are jack of all trades position, so you're not necessarily expected to be an expert in any one thing, which makes it easier to learn many things at the surface level, instead of learning a few things in depth. Which practically means that you will learn a lot on the job. This is especially true, since you're expected to learn some technology that's only seen internal to the company. So, showing they you have the ability to learn can perceived as much more important than specific knowledge.