If you apply to a generalist SWE role at FAANG, you're expected to have some knowledge about these things since you're likely to encounter them. I didn't have s

If you apply to a generalist SWE role at FAANG, you're expected to have some knowledge about these things since you're likely to encounter them. I didn't have such experience either, but it's now part of my day to day job. If you apply for a targeted specialized role, you may get a system design question that relates to your domain. If there's a general system design interview, it should have less weight in the process. It's still an indicator on how candidates communicate and think through a design. Plus, these kind of things should be general knowledge for a computer scientist nowadays.