Session 1: Building Your First MCP Server - Test Solutions¶

📝 Multiple Choice Test - Session 1¶

Question 1: What are the three core capabilities that MCP servers can expose?

A) APIs, Databases, and Services
B) Functions, Classes, and Modules
C) Tools, Resources, and Prompts ✅
D) Inputs, Outputs, and Errors

Explanation: MCP servers expose three types of capabilities: Tools (executable functions that can be called), Resources (data sources that can be queried), and Prompts (reusable templates for common tasks).

Question 2: Which decorator is used to expose a function as an MCP tool?

A) @tool()
B) @mcp.tool() ✅
C) @server.tool()
D) @expose_tool()

Explanation: The @mcp.tool() decorator is the FastMCP framework's way to register a function as an MCP tool that can be called by AI agents.

Question 3: What is the primary purpose of MCP Inspector?

A) To deploy MCP servers to production
B) To test, debug, and validate MCP servers ✅
C) To monitor server performance
D) To manage server configurations

Explanation: MCP Inspector is a developer tool (like Postman for MCP) that provides an interactive interface to explore MCP server capabilities, test tools, debug issues, and validate that servers follow the protocol correctly.

Question 4: Which transport mechanism is commonly used for local MCP server testing?

A) HTTP
B) WebSocket
C) stdio (standard input/output) ✅
D) TCP

Explanation: MCP servers communicate over stdio (standard input/output) by default for local development, which allows them to work as subprocess-based tools.

Question 5: Why are type hints important in MCP server functions?

A) They improve code readability only
B) They enable automatic schema generation for AI clients ✅
C) They are required by Python
D) They reduce memory usage

Explanation: Type hints are used by the MCP framework to automatically generate JSON schemas that describe the tool's parameters and return values to AI clients, enabling proper validation and usage.

Question 6: What should MCP tools return when encountering invalid input?

A) Raise an exception
B) Return None
C) Return structured error messages with helpful information ✅
D) Log the error silently

Explanation: MCP tools should return structured error messages with helpful information rather than raising exceptions, which provides better error handling for clients.

Question 7: How do MCP resources differ from tools?

A) Resources are executable functions, tools are data sources
B) Resources provide read-only data access, tools are executable functions ✅
C) Resources are faster than tools
D) Resources require authentication, tools do not

Explanation: Resources are read-only data endpoints that provide information (like file contents or database records), while tools are executable functions that can perform actions or computations.

Question 8: What command is used to launch MCP Inspector?

A) mcp-inspector
B) npm start inspector
C) npx @modelcontextprotocol/inspector ✅
D) python -m mcp.inspector

Explanation: MCP Inspector can be launched using the npx @modelcontextprotocol/inspector command, which runs the inspector without requiring a global installation.

Question 9: Which company reported 60% faster AI integration development using MCP?

A) Microsoft
B) Google
C) Block Inc. ✅
D) OpenAI

Explanation: Block Inc. reported significant development speed improvements when using MCP for their AI integrations, demonstrating the protocol's real-world benefits in enterprise environments.

Question 10: What is the main advantage of MCP over custom API integrations?

A) Better performance
B) Standardized protocol with automatic schema validation ✅
C) Lower cost
D) Easier to learn

Explanation: MCP provides a standardized protocol that includes automatic schema validation, discovery mechanisms, and consistent error handling, reducing the complexity of custom integrations.

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