How do I approach Product / Decision Making interview questions?

Product / Decision Making questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master product / decision making interviews.

What difficulty level is this interview question?

This is a medium difficulty Product / Decision Making question, commonly asked during Technical Screen rounds at Google.

What role is this question designed for?

This question is commonly asked for Product Manager candidates at Google during technical interviews.

YouTube Data Throughput Estimation

Last updated: Mar 29, 2026

Quick Overview

This question evaluates product management estimation skills, including quantitative throughput calculation, clear assumption articulation, and familiarity with product analytics and capacity planning for a large video streaming platform.

Google

Jul 4, 2025, 8:28 PM

Product Manager

Technical Screen

Product / Decision Making

Estimation Challenge: YouTube Daily Data Streamed

Problem

Estimate how much data YouTube streams to users worldwide in a typical 24-hour period.

Walk through your assumptions, calculations, and sanity checks.
Present the final estimate.

Hints

Consider daily active users, average watch time per user, and average video bitrates.
Clearly state each assumption before using it.

Solution

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