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AI / Agentic AI Interview questions

What is agentic workflow?

An agentic workflow represents a task execution pattern where AI agents autonomously manage multi-step processes, make decisions about sequencing and tool use, handle errors and exceptions, and adapt their approach based on intermediate results—all while pursuing a high-level goal. Unlike traditional workflows with predefined step sequences, agentic workflows are dynamic and adaptive, with the agent determining the specific path based on context and outcomes.

In traditional automation workflows, the sequence is predetermined: Step 1 → Step 2 → Step 3, with rigid logic governing each transition. If Step 2 fails, the workflow either stops or follows a predefined error path. In agentic workflows, the agent receives a goal ("generate a quarterly sales report") and autonomously determines what steps are needed, what order to execute them in, which tools to use, and how to handle issues. If data retrieval fails, the agent might try alternative sources, adjust its approach, or request assistance—behaviors not hardcoded but reasoned about dynamically.

Key characteristics of agentic workflows include goal orientation (focused on outcomes rather than prescribed procedures), dynamic planning (generating and adjusting execution plans on-the-fly), contextual tool selection (choosing appropriate tools based on current task requirements), error resilience (detecting and recovering from failures adaptively), and iterative refinement (improving outputs through self-evaluation and revision). These properties enable agentic workflows to handle complex, ambiguous tasks where the optimal path isn't known in advance.

Common agentic workflow patterns include the ReAct pattern (Reasoning and Acting in interleaved steps where the agent reasons about what to do next, takes an action, observes the result, and repeats), the plan-and-execute pattern (generating a complete plan upfront then executing steps while monitoring for needed adjustments), the reflection pattern (executing tasks then critically evaluating outputs to identify improvements), and the multi-agent collaboration pattern (coordinating specialized agents to collectively accomplish complex goals). Each pattern suits different task characteristics and operational requirements.

Implementing agentic workflows requires several components: an orchestration layer that manages the overall execution flow, a planning mechanism that generates and updates task sequences, a tool registry with available capabilities, a memory system for maintaining context and intermediate results, an error handling framework for detecting and recovering from failures, and evaluation logic for assessing progress toward goals. Modern frameworks like LangGraph, AutoGen, and CrewAI provide infrastructure for building these workflows, offering state management, tool integration, and agent coordination primitives.

Applications of agentic workflows span diverse domains. In software development, agents can understand requirements, architect solutions, write code, run tests, debug failures, and iterate until tests pass—a complex workflow with many decision points. In data analysis, agents can formulate analysis questions, gather relevant data from multiple sources, apply appropriate analytical techniques, generate visualizations, and summarize findings. In customer service, agents can understand complex inquiries, gather context from multiple systems, formulate solutions, and present coherent responses—adapting their workflow based on the specific issue. The agentic workflow paradigm represents a fundamental shift from procedural automation to goal-oriented autonomous task completion.

How do agentic workflows differ from traditional workflows?
What is the ReAct pattern in agentic workflows?

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What is an AI Agent? What is Agentic AI? Difference between AI Agents and traditional AI models? AI Agent vs Chatbot - key differences with table? Autonomous agents vs semi-autonomous agents? What is agentic workflow? History and evolution of AI agents? Goal-oriented behavior in agents? Agent environment and interaction types? Single-agent vs multi-agent systems? Agent decision-making processes? What is LangGraph and when to use it? What is CrewAI and its use cases? Comparison: LangGraph vs AutoGen vs CrewAI? What is LangChain Agents? What is Microsoft Semantic Kernel? What is OpenAI Assistants API? Agent framework selection criteria? Building custom agents with frameworks? LangGraph state management? AutoGen conversation patterns? CrewAI role-based agents? Framework integration patterns? Agent orchestration tools? Popular agent libraries comparison? What is tool use in AI agents? Function calling vs tool use? How do agents select tools? Tool integration patterns? Custom tool creation? Tool execution safety? Error handling in tool calls? Tool chaining and composition? Dynamic tool selection? Best practices for tool design? Types of agent memory (short-term, long-term, semantic) with table? Vector databases for agent memory? Conversation history management? Episodic memory in agents? Semantic memory implementation? Memory retrieval strategies? RAG for agent memory? Memory persistence patterns? Memory-optimization techniques? Context window management? Agent planning algorithms (A*, hierarchical task networks)? ReAct (Reasoning and Acting) pattern? Chain-of-thought in agents? Plan-and-execute pattern? Hierarchical planning? Goal decomposition? Task planning strategies? Dynamic replanning? Multi-step reasoning? Planning with uncertainty? Multi-agent collaboration patterns? Agent communication protocols? Consensus mechanisms in multi-agent systems? Agent coordination strategies? Human-in-the-loop agents? Agent evaluation metrics? Testing agent systems? Agent safety and alignment? Guardrails and constraints? Production deployment and monitoring?
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