CCAR-F objective 2.4 · Domain 2 · 18% of the exam
MCP Server Integration
The protocol settles an interface and nothing more: how a server describes its tools and resources, and how a client invokes them. Authentication, rate limiting, retries and caching stay the server's job, and dropping them because a protocol arrived is the misreading these items are built around. The shape it suits is many systems, many consumers and distributed ownership, where each team maintains one server that every application reuses. Two further points appear as keys: results carry a flag marking failure, so prose describing a problem inside a successful result is invisible, and stable reference material belongs in a resource rather than behind three tool calls.
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The rest of domain 2: Tool Design and MCP Integration
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