Load balancers sit at every layer of the tech stack. You should be prepared to discuss:
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While technology evolves, the foundational patterns of distributed systems remain relatively constant. A 2021 guide is particularly useful because it covers the shift toward cloud-native architectures and the widespread adoption of managed services. These resources often provide curated "templates" for common problems, which can help you develop the muscle memory needed to sketch out a design under pressure. Final Tips for Success Load balancers sit at every layer of the tech stack
How will you split data across multiple databases? (e.g., Sharding by User ID vs. consistent hashing). A 2021 guide is particularly useful because it
Calculate Daily Active Users (DAU), read/write ratios, QPS (Queries Per Second), and storage requirements for the next 5 years. Phase 2: High-Level Architecture Design (10-15 Minutes)