Do you have experience with Google Analytics? If so, what measures do you capture with this tool?
Google Analytics is part of Google's larger marketing platform, and it is often a go-to for web marketing analysis. Your interviewer is interested primarily in how you use a tool like Google Analytics and what you use it for. So, if you don't have a lot of experience using it, then do some research on what it does and what it offers, and draw comparisons to a tool that you have used. When answering this question, you primarily want to demonstrate that you are experienced and equipped in data collection, analysis, and report distribution using web-based platforms.
"I have used Google Analytics numerous times over the course of my career thus far, and I've found it to be an incredibly useful source of information that can determine the direction of our marketing strategies. Most recently, I used it to run A/B tests on changes that were made to the company website, and we then made decisions based on its insights. I have also used it to view website traffic and demographic trends, in addition to using it to track conversions for various campaigns."