Snap — Core — Product Case Questions

Role context: Senior Data Scientist, Core · Est. study time: 45 min · 5 questions

How these map to the role

These are broad Snapchat product cases: an ambiguous question you frame into governed metrics and a clean measurement, then an objective recommendation for product and executive leaders. The recurring instinct: anchor on DAU + reciprocated friend-communication (not raw time), guard user experience (ad load, app performance) and safety/metric accuracy, and reason across the communication / content / monetization trade-offs.

Each answer is a coaching walkthrough: a Sample answer (clarify → approach → a simulated back-and-forth → a clear call), then a Deep dive with illustrative example, then a Grading rubric.

Questions (5)

Snaps sent per DAU dropped — what happened?Diagnose a problemMediumDefine success for a new AR Lens featureMeasure successHardA content change lifts watch but may hurt messaging — ship it?Launch or notHardMeasure a brand-marketing campaign you couldn't A/BMeasure impactHardSize the opportunity for a new betMeasure successHard