Anthropic CCDV-F Practice Exam Questions

Anthropic CCDV-F Sample Question Answers

Question # 1

An agent's context is dominated by tool definitions: it connects to four MCP servers exposing sixty tools in total, of which any given task uses two or three. Selection accuracy has fallen and per-request cost has risen.Which approach best addresses both symptoms?

A. Scope the tool surface to the task — connect only the servers a given workflow requires, and delegate specialized work to subagents that each carry a narrow, purpose-fit tool set.
B. Combine all sixty tools into a single dispatcher tool that takes an operation name as a parameter.
C. Move the tool definitions into the system prompt, which is not counted toward context.
D. Accept the situation, since tool definitions are a fixed cost of MCP integration.

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Question # 2

A team is designing an MCP server that will expose an internal analytics platform to multiple Claude applications, including one accessible to external contractors. Which three design decisions are most important? 

A. Authenticate and authorize at the server boundary, resolving the caller's identity rather than treating all connected clients as equally privileged.
B. Design tool granularity deliberately — expose a small set of well-described, purpose-scoped operations rather than a thin passthrough to every underlying API endpoint.
C. Return errors as structured, informative results the calling model can reason about, without leaking internal implementation detail such as stack traces or connection strings.
D. Expose the analytics platform's raw SQL interface as a single tool, so the model has maximum flexibility.
E. Trust the calling model's stated identity claims, since the client harness has already authenticated the user.

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Question # 3

An architect must decide, for each of several capabilities, whether to implement it as a built-in tool, a custom tool, a Skill, or an MCP server. Which three statements correctly characterize the decision criteria

A. A capability requiring live, authenticated access to an external system that several distinct applications must share is a strong candidate for an MCP server.
B. Procedural knowledge — how to perform a task, with templates and conventions but no external execution — is best packaged as a Skill.
C. A single application's narrow, private function with a well-defined input contract is appropriately implemented as a custom tool defined in that application.
D. Any capability implementable as a Skill should be implemented as a Skill, since Skills are always cheaper than tools.
E. MCP servers should be preferred over custom tools in all cases, since protocol-based integration is inherently more maintainable.

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Question # 4

An agent is given fourteen tools, several with overlapping purposes. Tool selection accuracy has degraded noticeably compared with an earlier version that had four tools.Which explanation and remedy are most accurate?

A. A large, overlapping tool surface makes selection harder and consumes context on every request; consolidate genuinely redundant tools, sharpen descriptions to disambiguate the rest, and expose only the tools relevant to the current task.
B. The API caps agents at ten tools, so the four additional tools are silently ignored.
C. Tool count has no effect on selection; the regression must be caused by a model version change.
D. Selection accuracy is restored by listing the tools in alphabetical order, which the model uses as a priority ranking.

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Question # 5

An organization has a detailed internal procedure for producing quarterly compliance reports: a specific document structure, mandatory sections, required disclaimers, and a review checklist. They want Claude to follow this procedure consistently without pasting the full procedure into every prompt.Which mechanism is the best fit?

A. A Skill that packages the procedure, its supporting templates, and its instructions, loaded when the task calls for it.
B. An MCP server, since procedural knowledge must be served over a protocol to be reusable.
C. A custom tool whose input_schema encodes each section of the report.
D. A permanently enlarged system prompt containing the full procedure on every request regardless of task.

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Question # 6

A team has built an MCP server. It must be consumed by a locally running developer tool on individual workstations, and also by a centrally hosted application shared by many users.What is the most appropriate transport decision?

A. Use a local process transport communicating over standard input and output for the workstation case, and an HTTP-based transport for the centrally hosted case.
B. Use a local process transport for both, running the server as a subprocess of the central application per user.
C. Use an HTTP-based transport for both, requiring each workstation to expose a listening port.
D. Transport is not configurable in MCP; all servers communicate over a fixed protocol binding.

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Question # 7

A tool that queries an external inventory service intermittently times out. Currently, when it fails, the application raises an exception that aborts the whole agent run. Which two changes produce better agent behavior? 

A. Return a structured tool_result marked as an error, with a concise description of what failed, so the model can decide whether to retry, try another approach, or report the limitation.
B. Return a fabricated but plausible inventory record so the agent can continue without interruption.
C. Apply bounded retry with backoff inside the tool implementation for transient failures, before surfacing the error to the model.
D. Remove the tool from the agent's tool list whenever the external service is degraded, without informing the model.
E. Return an empty successful result, since an empty response is semantically equivalent to a failure.

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Question # 8

An organization has a proprietary internal reporting system with a REST API. Four separate Claude applications, maintained by three different teams, all need to query it. The reporting API evolves independently of any one application.Which approach best fits these constraints?

A. Implement an MCP server exposing the reporting operations as tools, and connect each application 
A. Implement an MCP server exposing the reporting operations as tools, and connect each application to it.
B. Define a duplicate set of custom tools inside each of the four applications.
C. Write a Skill in each application that documents the REST endpoints as prose for the model to follow.
D. Paste the most recent report data into each application's system prompt on a nightly schedule.

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Question # 9

An agent has access to two tools, search_customers and search_orders. Claude frequently calls the wrong one, and often omits required parameters. Which two changes are most likely to improve tool-selection accuracy?

A. Rewrite each tool description to state precisely when the tool should and should not be used, including how it differs from the adjacent tool.
B. Register both tools under a single generic search name and let the model pass a type argument.
C. Tighten the input_schema for each tool — mark required fields, constrain enums, and describe each parameter's meaning and format.
D. Lower temperature to 0, which forces schema-valid tool arguments.
E. Move the tool definitions into the system prompt as prose instead of using the tools parameter.

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Question # 10

A developer defines a get_order_status tool. Claude returns a response with stop_reason of tool_use containing a tool_use content block. The developer executes the lookup against their order database and now needs to give the result back to Claude.How should the result be returned?

A. As a new user message containing a tool_result content block that references the originatingtool_use id.
B. As a new system parameter value containing the serialized lookup result.
C. As an assistant message containing a tool_result content block, since the tool acts on the assistant's behalf.
D. As a plain-text user message describing the result in natural language, with no structural block.

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