Nikhil Lohia

Fast, focused flashcards to build real system-design confidence.

This free pack contains 10 bite-sized flashcard topics — fundamentals, scaling, frontend vs backend, client/server architecture, databases, load balancers, caching, latency vs throughput, availability vs redundancy, and CAP theorem — each written to give you one idea, one takeaway, one memory you can use in interviews or real designs. ⚡️📚

More info available here: https://youtu.be/EKfcq0LF6To

What you get

• ✅ 50–150 words per topic: crisp definitions + why it matters
• ✅ Quick revision cues for last-minute interview prep
• ✅ Real-world analogies (bookstore, caching examples) so concepts stick
• ✅ Format designed for on-the-go review — perfect for phone or desktop

Why it helps

• Save time: Turn 10–15 minutes into a useful refresher before a call. ⏱
• Interview-ready: Each card highlights the answerable core so you can speak confidently. 🎯
• Learn faster: Compact, example-driven explanations that map to system-design problems.

Want deeper mastery?

This free pack is a taste — our Pro Pack includes 30+ advanced cards (sharding, rate limiting, observability, capacity planning, and more). You also get quick text refreshers that help you understand all of it when you need it the most. Upgrade anytime to move from solid recall to systematic expertise. 🚀🔐

How to use these cards

1. Skim cards regularly for steady growth.
2. Use before interviews for a 10-minute refresher.
3. Pair with mock problems and sketch diagrams for retention.

Grab the free set, try a week of daily reviews, and watch your system-design confidence grow. 💪🔥