Metrics question

How do you define the goals and metrics for Facebook Newsfeed?

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Tests building a full goals-and-metrics framework for a core, high-stakes surface balancing engagement, quality, and business needs.

State the top-level goal: keep the Newsfeed the default place users go for meaningful updates from people and communities they care about.
Set the north star metric: meaningful social interactions per user (comments, shares between friends), not raw time spent.
Add supporting metrics: content diversity (ratio of friend content to Page/ad content) and session frequency.
Add a quality guardrail: rate of reported or hidden content, to prevent optimizing purely for engagement at the cost of trust.
Add a business metric: ad revenue per session, tracked separately so it doesn't distort the core ranking goal.

Distinguishes the north star (meaningful interactions) from vanity metrics (raw time spent), reflecting Meta's own publicly stated pivot.
Separates goals into user-value, quality-guardrail, and business-metric buckets, showing structured metric-tree thinking.
Uses an illustrative number, e.g. assume meaningful interactions are currently 20% of all Newsfeed interactions, and sets a target to grow that share.
Explicitly protects against the known risk of engagement-optimized feeds amplifying low-quality content.

Picking time spent or DAU as the single goal, ignoring the well-documented risk of engagement-bait content.
Mixing business and user-value metrics into one undifferentiated list instead of structuring them.

How would you weigh meaningful interactions against ad revenue if they conflicted in a specific test?
How would you detect if a content category is gaming the meaningful-interaction metric?