Ten-question diagnostic

Where should you start?

Ten quick questions to pick a starting page. Answer honestly for yourself. Nothing leaves your browser, nothing is saved, and there is no score.

This is a routing aid, not a test. The result is a suggested page, not a level or a credential. Portfolio policy.

This page needs JavaScript to suggest a page. Without it: if writing a Python function or reading JSON is new to you, see Foundations. Otherwise start Week 1.

1. Python functions

Can you write a Python function that takes a dict and returns one of its values, or a default if the key is missing?

Yes, without looking anything up With a reference open Not yet

2. JSON

Given {"order_id": "1042", "state": "shipped"}, can you read the state in code and explain what a missing key would do?

Yes, without looking anything up With a reference open Not yet

3. REST

Can you explain the difference between a GET and a POST to an API, and when a request should have a body?

Yes Roughly Not yet

4. SQL joins

Can you write a join between an orders table and a shipments table, and say which rows a left join keeps that an inner join drops?

Yes Roughly Not yet

5. Git

Can you clone a repository, make a branch, commit a change, and see what changed with git diff?

Yes Roughly Not yet

6. Docker

Can you build an image from a Dockerfile, run it with an environment variable, and explain why a secret should not be baked into the image?

Yes Roughly Not yet

7. HTTP status codes

Do you know what 200, 401, 403, 404, and 500 usually mean, and which one a missing token should return?

Yes Some of them Not yet

8. Deployed an API

Have you put a small API somewhere other people (or other programs) could call it, and rolled it back or restarted it when it broke?

Yes, more than once Once, or with a lot of help Not yet

9. Embeddings

Can you explain what an embedding is, and why a vector search can miss an exact id that a keyword search finds?

Yes Roughly Not yet

10. Auth basics

Can you explain the difference between authentication and authorization, and why a group claimed in a user's message is not a group membership?

Yes Roughly Not yet

How the suggestion works

If Python functions or JSON are "not yet," the suggestion is Foundations. Week 1 assumes both.
If you answered "yes" on SQL joins, Docker, deploying an API, embeddings, and auth, and nothing is "not yet," the suggestion is the Advanced pages, alongside the Pro depth of each week.
Everything else: Week 1 on Easy or Medium. The week pages explain the rest as they go.

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