Infrastructure Design for Scale and Reliability Questions

Covers the principles and practical patterns for designing infrastructure that supports organizational growth while maintaining availability and predictable performance. Topics include redundancy and failover strategies, multi site and geographic distribution, capacity planning and growth forecasting, load balancing and traffic distribution, data locality and storage scaling, caching and consistency trade offs, fault isolation and degradation modes, disaster recovery and backup planning, observability and monitoring design, capacity testing and performance tuning, dependency mapping and minimization, and balancing cost, operational complexity, and reliability requirements. Candidates should be able to reason about trade offs, design for incremental growth, and describe tooling and testing approaches used to validate designs.