This will depend heavily on the kind of product you are interviewing to market. The more technical the product, the more "technical" questions you might get.
Even so, you should be 100% prepared to:
You should know these things regardless of whether they're being asked in an interview. These are all important to know before signing up as their new PMM.
At Retool, our product helps developers to build business software. My core audience is developer-focused, and use cases include a lot of complicated internal processes (e.g. helping banks manage loan applications).
So when I'm hiring, I need PMMs who can:
That does not mean you have to be an engineer. You do, however, need to prove that you can learn and teach really hard things.
You should use technical interviews to show that you have unlimited learning potential. When I was interviewing for my role at Segment, they worried that my background (ad-tech, B2B SaaS) might not be technical enough for a developer product.
But I shared the steps I took to learn about programmatic advertising and data privacy laws at AdRoll, and how I used that knowledge to help inform great product decisions and product launches. I made the case that I could learn hard things and earn my seat with a hard-to-impress audience, and it made all the difference.