MCP & AI Agents

Topics

Questions

Practice sets

67%

Average score

across submitted attempts

Topics

Each topic has its own theory, sample questions and timed sets.

MCP Fundamentals
What MCP is and how it works
50 questions
Easy· 20Medium· 20Hard· 10
Start 10 · 10 min Topic
AI Agents Basics
Agentic AI concepts and patterns
3 questions
Medium· 3
Start 3 · 3 min Topic

Troubleshooting · 9 min read
Your MCP server connects and the tools still do not run
The server is green, the tool count is right, and the model answers without touching any of it. That is a selection problem, not a connection problem: ten causes with distinct fingerprints, from a six-word description to the thirtieth tool that pushed the right one out of reach.
Troubleshooting · 9 min read
Why your MCP server isn't showing up in Claude Code
An MCP server that adds cleanly and then shows no tools has about ten possible causes, and each leaves a different fingerprint. A symptom-first triage guide: what the /mcp statuses actually mean, why scope cannot be changed in place, and the config error that makes Claude run your URL as a local process.