Medium-level LLM and Agentic AI interview questions covering agent architectures, RAG optimization, and production systems. Q1: Design and implement a ReAct (Reasoning + Acting) agent. Answer: How ReAct Works: ReAct alternates between reasoning (thinking) and acting (using tools) to solve problems. Pattern: 1Thought: I …

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 …

Medium-level research interview questions covering advanced methodologies and analysis techniques. Q1: Explain different experimental designs and when to use each. Answer: Between-Subjects Design Pros: No learning effects, simpler analysis Cons: Need more participants, individual differences Within-Subjects Design …

Medium-level scalability interview questions covering advanced scaling techniques and optimization. Q1: Explain database partitioning strategies. Answer: Horizontal Partitioning (Sharding) Range Partitioning: Hash Partitioning: Vertical Partitioning Q2: How do you handle database hotspots? Answer: Problem: Uneven data …

Medium-level system design interview questions covering complex distributed systems. Q1: Design Twitter/X. Answer: Requirements Post tweets (280 chars) Follow/unfollow users Timeline (home feed) Search tweets Trending topics 500M users, 100M DAU Architecture Tweet Flow Timeline Generation Fanout Strategies: Database …

Medium-level technical due diligence interview questions covering deeper assessment methodologies. Q1: How do you conduct a comprehensive architecture review? Answer: Multi-Layer Assessment Key Questions: Is the architecture documented? Are concerns properly separated? How are services communicating? What are the …