MCP & Tool Use Assessment | MCP & Tool Use for E-commerce

1

What is the Model Context Protocol (MCP) primarily designed to do?

Train AI models faster Standardize how AI systems connect to external tools and data sources Compress model weights for deployment Encrypt AI-to-AI communication

2

Which format does MCP use for defining tool input parameters?

XML Schema Protocol Buffers JSON Schema GraphQL Types

3

A customer's payment times out. The AI agent retries the request. What prevents a double charge?

The AI remembering not to charge twice Database transactions Idempotency key sent with the payment request Credit card fraud detection

4

Your inventory check tool returns 'source: cached' with a warning. What does this indicate?

The inventory system is permanently down The real-time service failed, so cached data was returned as a fallback The cache needs to be cleared The product doesn't exist

5

Which MCP transport is appropriate for a remote production server?

stdio only HTTP with Server-Sent Events (SSE) FTP Email

6

What's wrong with this tool name: 'processPaymentAndSendEmailAndUpdateInventory'?

It's too short It violates single responsibility - tools should do one thing It doesn't use camelCase Nothing, it's a good name

7

During Black Friday, your shipping rate API returns 503 errors. Which pattern should your tool implement?

Immediately return an error to the user Circuit breaker with fallback to estimated rates Retry indefinitely until it works Disable shipping entirely

8

Your CRM tool returns customer data. What must you do for GDPR compliance?

Nothing - AI agents are exempt Log all access with timestamp, fields accessed, and purpose Delete the data immediately after use Only access data on weekdays

9

An AI agent calls your 'create_refund' tool. The tool succeeds but the AI connection drops before receiving the response. What should happen on retry?

Create another refund (double refund) Return the original refund result (idempotency) Return an error saying refund already processed Ask the user if they want another refund

10

You're defining a tool for monetary amounts. Which type should you use for the 'amount' field?

number (e.g., 29.99) string (e.g., '$29.99') integer in cents (e.g., 2999) array of bills and coins

11

Your MCP server has tools for payments, inventory, and shipping. A new engineer asks where tool errors should be reported. What's the correct answer?

Throw exceptions that become MCP protocol errors Return errors within the tool result content so the AI can see and handle them Log errors but return success Send errors to a separate error channel

12

What information should a well-designed tool description include?

Just the tool name is enough What it does, when to use it, and what it returns The complete source code Legal disclaimers only

13

Your e-commerce AI handles 100 requests per second. A user tries to make 500 payments in 1 minute. What should happen?

Process all 500 payments Rate limit kicks in, returning 'too many requests' with retry-after Crash the server Ban the user permanently

14

Which of these is NOT a valid MCP server capability?

tools - functions the AI can call resources - data the AI can read prompts - pre-built templates thoughts - AI internal reasoning

15

A customer asks 'Is my order shipped?' The AI should call which tools in what order?

get_customer, then get_order, then track_shipment track_shipment only send_email with shipping status check_inventory

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