System Design Interview Questions and Answers Sanjay Kumar PhD · Follow 7 min read · Just now — Imgae generated by Author using DALL E 1. Design a Parking Lot Management System Features: Vehicle Management : Entry/exit logs, license plate recognition. Parking Slot Allocation : Dynamic slot assignment, floor preferences. Payment System : Hourly/daily rates, prepaid/postpaid options. Admin Panel : Slot overview, reports, maintenance scheduling. Architecture: Frontend : Mobile/web app for customers (book slots, view history). Admin dashboard (manage slots, generate reports). Backend : REST API for slot booking, vehicle logs, and payments. Database for storing parking slots, vehicles, transactions (SQL or NoSQL based on scale). IoT Integration : Sensors for slot occupancy. Cameras for license plate recognition. Challenges & Solutions: Concurrency : Use locks or distributed transactions to […]
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