Anthropic · CCDV-F
Technical fundamentals
CCDV-F · Lesson 13 of 21 · 1:55:38
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In this lesson
Prepare for the Claude Certified Developer – Foundations exam, on the exam guide version 1.0, effective July 2026. In this lesson: the official SDKs on top of the REST API, server-sent events versus WebSockets, keys in environment variables or a secrets manager, timeouts, configuration, pinned versions, and logging every request ID. Includes three original practice questions.
Preview the topics
- Driftwood’s backend team wants retries, timeouts, typed responses, and the request ID of each call, without writing HTTP code by hand. What should the team use?
- Driftwood’s live chat must let a buyer type a new message while Claude is still answering, and show the agent’s progress on the same connection. Which protocol fits between the chat page and Driftwood’s server?
- A Driftwood developer puts the API key in the JavaScript of the chat page, so that the browser can call Claude directly. What is the problem, and what is the fix?