Google product management interview with a classic estimation question about YouTube storage costs. Nothing too surprising but it requires you to actually know how to structure a back-of-envelope calculation under pressure.
“I started by estimating daily upload volume, which felt okay, but then I got tangled up trying to figure out storage cost per GB and whether to account for multiple resolution copies.” The rest of the author's notes on Product Manager interview at Google, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.