Already Know This? — The D0 Skip Assessment

Skip Check 5 min +15 XP

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THE ANALOGY

A placement test before a language class. If you already speak conversational Spanish, you don't start at 'Hola.' You test in at an intermediate level and begin there. This lesson is your placement test for D0. If you answer yes to most of these questions, you can go directly to D1.

⚠️ EXAM TRAP — The Wrong Answer People Choose

The CCA exam does not test D0 material. D0 is preparation for the exam, not part of it. If you already understand AI fundamentals, API concepts, and prompting basics — jump to D1 and don't look back.

KEY POINTS

1 D0 is for people new to AI. If you're already an experienced AI user, you can skip directly to D1.

2 There is no penalty for skipping D0 — the CCA exam covers D1 through D6 only.

3 The skip assessment below helps you decide honestly whether you need D0 or are ready for D1.

4 If you skip D0 but get stuck in D1, you can always come back — D0 lessons will always be here.

5 Advanced learners: D0 Lesson 11 (this one) and Lesson 12 are worth reading even if you skip the rest — they frame the entire course.

The D0 Skip Assessment

Read each question and answer honestly. A “yes” means you genuinely know this — you could explain it to someone else, not just recognize it when you see it.

Question 1: Can you explain in plain English what a large language model (LLM) is and roughly how it works?

Question 2: Do you understand what a “context window” is and why it matters for how Claude behaves in long conversations?

Question 3: Have you used Claude (or another AI) regularly for at least a month for real tasks — not just experiments?

Question 4: Can you write a good prompt without help? Do you know what Role, Task, Context, and Format mean in a prompt?

Question 5: Do you understand what an API is and roughly how one works? Could you explain it to a colleague?

Question 6: Do you understand the difference between using Claude at claude.ai and building with Claude’s API?

Question 7: Are you comfortable with the concept that Claude can be wrong, and do you have habits around verifying important information?

Question 8: Do you understand that Claude’s knowledge has a cutoff date and it cannot access real-time information by default?

How to interpret your answers

7–8 YES: Skip D0 entirely. Go to D1, Lesson 1. You have the foundations needed.

5–6 YES: Skim D0. Read the lesson titles and only go deep on the ones where you answered No. Plan to spend 30–60 minutes on D0 total.

3–4 YES: Work through D0 but at an accelerated pace. Focus especially on Lessons 5 (prompting), 9 (APIs), and 10 (career paths). Budget 2–3 hours.

0–2 YES: D0 is for you. Work through it fully. This is not a shortcoming — it’s exactly where this course starts. Budget 3–5 hours and take your time.

A note on honesty

The temptation is to overestimate your readiness and skip ahead. This backfires in D1, where the material assumes you understand these concepts deeply.

The other temptation is to underestimate — to think “I know this but maybe not well enough” and stay in D0 when you should be in D1.

The assessment above is designed to catch both. Answer it like someone is going to ask you follow-up questions.

Ready to go?

If you’re continuing through D0: the next lesson (Lesson 12) is the most important one. It connects everything in D0 to everything in D1–D6, and frames your entire study journey.

If you’re skipping to D1: start with D1 Lesson 1 — Agent Loop Basics. The first line of the lesson will make immediate sense if your D0 foundations are solid.

Either way — you’re in the right place.