← System Design
Fundamentals
Core concepts every engineer must understand before designing systems — scalability, availability, and estimation.
3 Lessons
Knowledge Course
01
Availability & Reliability
Understanding the nines of availability, failure modes, redundancy, and designing systems that stay online.
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02Back-of-the-Envelope Estimation
Quick estimation techniques for QPS, storage, bandwidth, and compute requirements during system design.
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03Scalability & Performance
Understanding vertical vs horizontal scaling, performance metrics, and designing systems that grow with demand.
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