Great questions! I hope others can provide insight as my experiences at communities colleges come from an administrative perspective - not faculty or people who are in charge of faculty. Foremost, I would not expect questions about research and, unless otherwise told about faculty who do conduct research, would largely avoid mentioning this. I am unaware of any community college where much research happens beyond the rare one that has some sort of special program to cultivate student projects. Community colleges tend to be perhaps the most distinct institution versus the other general types (R1, R2, SLACs) in that all community colleges very strongly, if not exclusively, emphasize teaching. I researched many CCs during my academic job search, as a back-up plan, and noticed that the ones I applied to were all 4/4 and in many cases 5/5 teaching loads. Remember, these are teaching centered institutions.
Things that people will be interested about during your interviews will include: your teaching philosophy, perspective and/or experience working with diverse student populations, perspective and/or experience working with non-traditional students, ideas about how to help struggling students succeed (e.g., someone who's been out of school for 20 years; first generation student from a household where English was a 2nd language). There may well be interest in how you plan to develop yourself as an educator and where you see yourself in 5 years. You might also field questions about teaching an online class or an online-mixed class (meets once per week or less in-person and is otherwise online).
Good, specific answers to these sorts of things will help. Any experience you have to highlight your competencies in these domains will also help.
Tenure systems vary at community colleges. More and more it seems community colleges use a "tenure-like" system for promotions that is not dependent on research, but is rather based on teaching effectiveness and college service. However, even with the "tenure-like" promotion system (you can jump from assistant to associate level, etc.), tenure isn't necessarily present. Instead, what the institution may use is some sort of longer-term contract system where you go up for renewal every few years. I've seen some CCs where this system was in place and the renewal happened around every 5 or 7 years, as I recall.
I hope others can provide some deeper insight into the CC system and faculty hiring. Please correct me, too, if anything here is in error on my part.