#Scalability

Design a service to identify the n closest restaurants to a user in real time. Explain the system architecture, including geospatial indexing, caching strategies, and considerations for scaling to millions of users.

Explain how handling millions of transactions daily affects your thought process regarding frontend changes.

How do you approach designing a scalable microservices architecture? Discuss the key principles.

Describe how to achieve vertical order traversal of a binary tree. Include considerations for scalability and fault tolerance in your design.

Create a system design for a parking lot which accommodates multiple floors and different types of vehicles. Ensure to include fee calculation, but also try to cover aspects of scalability, concurrency, and fault tolerance.