Easy-level protocol and design interview questions covering fundamental concepts. Q1: What is a network protocol and why is it important? Answer: Definition: A set of rules and conventions for communication between network entities. Why Important: Standardization: Different systems can communicate Interoperability: …

Hard-level protocol and design interview questions covering advanced distributed systems and protocol design. Q1: Design a custom protocol for real-time multiplayer gaming. Answer: Protocol Design Message Format Header Fields: Magic Number: Protocol identifier Version: Protocol version Flags: Reliable, ordered, …

Medium-level protocol and design interview questions covering advanced networking and distributed systems concepts. Q1: Explain HTTP/2 improvements over HTTP/1.1. Answer: HTTP/1.1 vs HTTP/2 Multiplexing Benefits: No head-of-line blocking Reduced latency Better bandwidth utilization Fewer connections Q2: Explain gRPC …

Packet diagrams visualize network packet structures and protocol layers. Perfect for documenting network protocols, packet formats, and communication protocols. Use Case Use packet diagrams when you need to: Document network protocols Show packet structures Visualize protocol layers Explain packet formats Design …