Schemas & Structured Data
How JSON Schema describes tool inputs and outputs, and how structured results are validated.
Domain 2: Architecture & Components
Exam weight: 14%
This domain covers the structural pieces of MCP: how data is described with schemas, the host/client/server topology, and how a request flows from user to model to server and back.
Competencies
Section titled “Competencies”MCP Hosts, Clients and Servers
The three participants, their responsibilities, and the 1:1 client-to-server relationship.
Model Interaction Flow
Tracing a complete interaction from user prompt to tool result and final response.
Learning objectives
Section titled “Learning objectives”After studying this domain you should be able to:
- Explain how JSON Schema describes tool inputs and outputs
- Describe the responsibilities of hosts, clients, and servers
- Trace a complete interaction from user prompt to tool result and final response