AI Architect Interview Part 10/13 | MCP Security, Google ADK, A2A & the Python Coding Round

This interview segment covers MCP (Model Context Protocol) transport security mechanisms, Google's Agent Development Kit (ADK), comparisons between LangGraph and ADK architectures, distinctions between MCP and A2A (Agent-to-Agent) protocols, and concludes with a Python coding challenge focused on finding the longest substring without repeating characters.

Key Points

• •MCP transport layer security: understand encryption, authentication, and secure communication between clients and servers
• •Google ADK architecture: key components, agent orchestration, and how it differs from LangGraph for multi-agent systems
• •LangGraph vs ADK: evaluate trade-offs in complexity, flexibility, and use cases for agent development
• •MCP vs A2A protocols: clarify when to use Model Context Protocol versus Agent-to-Agent communication patterns
• •Python coding fundamentals: implement efficient algorithms for substring problems using sliding window or hash map techniques
• •Interview preparation: demonstrate system design thinking across protocol selection and algorithm optimization
• •Security considerations: apply authentication and encryption principles to agent communication architectures

Workflow Diagram

Concepts