CCAR-F Tool Design and MCP Integration Practice Question
Which of the following describes the purpose of the 'resources' feature in MCP?
⚠ Common exam trap
Test-takers frequently confuse MCP resources with tools, assuming resources can modify state or execute actions, whereas they are strictly restricted to read-only data access.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
To provide the model with read-only access to external data entities.
MCP resources are designed for the model to read and utilize data from external sources, such as configuration files, logs, or documentation. Unlike tools, which are meant for taking actions, resources represent data objects. They allow the model to ingest context from the environment efficiently, which is a fundamental requirement for building agents that need to be aware of their surroundings to perform accurate task execution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To allow the model to execute long-running background tasks on the server.
Why it's wrong here
Resources are for data retrieval, not execution. Using them for background tasks is an incorrect architectural pattern that confuses the model and violates the protocol's separation of read-only access (resources) and read-write/execution capabilities (tools). Tools should be used for all actions that require side effects.
- ✓
To provide the model with read-only access to external data entities.
Why this is correct
Resources provide a standardized way to expose data to the model. By separating data retrieval (resources) from functional actions (tools), the MCP architecture enables a clean, predictable way for models to gather the context they need without accidentally triggering actions while simply trying to read file contents.
- ✗
To allow the model to modify persistent settings in the server's configuration.
Why it's wrong here
Resources represent read-only context. Modifying persistent configuration requires a specific tool that handles write operations and input validation. Using resources for modification would violate the design principles of the MCP protocol, which restricts resources to data exposure and tools to state-changing operations.
- ✗
To maintain state between different MCP client sessions across the network.
Why it's wrong here
Resources are not intended for managing cross-session state. They are meant to provide the model with static or transient context from the environment. Managing cross-session state is a responsibility of the application layer or database, not the MCP resource mechanism, which is purely for data ingestion.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Anthropic exam blueprint
This CCAR-F practice question is part of Courseiva's free Anthropic certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCAR-F exam.