Ngân hàng câu hỏi

Focus on data partitioning, replication for fault tolerance, consistency models, and handling node failures.

Use a recursive function to check the height of each subtree; return false if the difference is more than one.

Consider efficient hashing, collision resolution, database schema, scalability, and API rate limiting.

Use collaborative filtering, content-based filtering, or hybrid methods; consider scalability and real-time processing.

Use two heaps (max heap for lower half, min heap for upper half) to maintain the median.

Discuss leader election, log replication, safety, and how Raft achieves consensus in a distributed system.

Use strategies like caching, edge locations, load balancing, and optimizing routing and data compression.

Consider websocket protocol for real-time communication, efficient message broadcasting, and scalable backend architecture.

Understand memory management concepts like mark-and-sweep, reference counting, and generational collection.

Focus on system architecture, push vs. pull models, handling peak loads, database optimization, and message queuing.