🚀 Learn how to prevent duplicate booking in system design interviews — one of the most asked questions at top tech companies like Tesco, Amazon, Google, and Meta.. . This video covers the COMPLETE solution senior engineers need to know:. ✅ Why duplicate booking happens (concurrency problem explained). ✅ Database unique constraints (your safety net). ✅ Redis distributed locking with NX and EX flags (production-grade solution). ✅ Row-level locking with SELECT FOR UPDATE. ✅ The best real-world approach (combined Redis + DB strategy). ✅ Word-for-word interview answer that impresses hiring managers. . 🎯 Perfect for:. – Senior Software Engineer interviews. – Backend Engineer technical rounds. – System Design interview preparation. – Anyone building booking systems, ticket platforms, or reservation apps. . 🔑 KEY CONCEPTS COVERED:. #SystemDesign #Redis #DistributedLocking #Concurrency #DatabaseDesign #InterviewPrep. . 💬 QUESTIONS FOR YOU:. What company are you interviewing with? Drop it in the comments and I’ll cover their favorite system design questions next!. . 🔔 SUBSCRIBE for weekly system design interview prep content. 👍 LIKE if this helped you understand duplicate booking prevention. 📢 SHARE with engineers preparing for technical interviews. . 📖 Resources mentioned:. – Redis Documentation: https://redis.io/docs/. . #SystemDesignInterview #SoftwareEngineering #TechInterviews #Redis #BackendDevelopment #CodingInterview #SeniorEngineer #Tesco #FAANG #DistributedSystems #Concurrency #DatabaseDesign #TechCareer #InterviewTips #softwaredeveloper
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