Memorize not the answers, but the trade-offs. quizzes often ask: "SQL vs. NoSQL?" The answer is not "NoSQL is faster." The answer is: "SQL for ACID transactions and complex joins; NoSQL for horizontal scaling and unstructured data."
| Feature | Gaurav Sen (DesignGurus) | Alex Xu (System Design Interview Books) | Educative.io (Grokking System Design) | | :--- | :--- | :--- | :--- | | | Video (Whiteboard style) | Text & Diagrams (Book) | Text-based Interactive Course | | Best For | Visual learners & Understanding "The Why" | Quick revision & Reference | Fast readers who like structured text | | Depth | High (Iterative approach) | High (Reference heavy) | Medium (Good overviews) | | Cost | Medium/High | Low (Cost of book) | Medium/High | gaurav sen system design
(on YouTube or his platform)
Don't just memorize the diagram. Understand why he chose a specific database or why he placed a cache in a specific spot. Conclusion The Architecture of Intuition: Deconstructing the Gaurav Sen