Design a scalable system for real-time collaborative document editing, similar to Google Docs. We need to ensure that multiple users can edit the same document simultaneously with minimal latency and perfect consistency.
Architect a highly available and globally distributed search index for Google Search. The system must handle billions of queries per day and provide fresh results within minutes of new content being published.
Propose a robust and secure system for managing user authentication and authorization across all Google products. This system needs to support various authentication methods and ensure user data privacy.
Design a data pipeline for processing and analyzing petabytes of user activity data for Google Analytics. The system should collect, store, and allow for complex queries on this data in a timely manner.
