AI interview & certification prep questions, every answer referenced
900+ questions built from real AI talks and lectures — by working engineers, researchers and university faculty — each one written from what the speaker actually teaches, not a recycled question bank. Follow any answer back to the exact moment it came from and check it yourself.
Transformers, RAG, agents, prompting, evals, fine-tuning and system design — at three levels, so you can start where you actually are.
AI & LLM Essentials
Everything in this category, unlocked once for $14.99 — no subscription, and free questions in every pack.
Compiled from real ai talks and lectures by working engineers, researchers and university faculty. Not affiliated with or endorsed by any university, channel, creator or certification program. Claude and Claude Certified Architect are trademarks of Anthropic; we reference them only to say what this practice material is for.
FoundationsStart here if AI is new to you
How the models actually work — the mechanics behind every other answer.
LLM Fundamentals · Transformers & Attention
2 topics · 120 questions · 12 free to try · 8-question free warm-up
Building with AIThe AI-engineer core
Retrieval, agents and prompting — what an AI engineer is hired to do.
Retrieval-Augmented Generation · AI Agents & Tool Use · Prompt Engineering
3 topics · 180 questions · 18 free to try · 8-question free warm-up
Shipping & ScalingWhat senior loops dig into
Evals, fine-tuning, inference cost and system design — getting it into production.
LLM Evals & Observability · Fine-tuning & Model Adaptation · Inference & Optimization · GenAI System Design · LLM & Agent Security
5 topics · 239 questions · 24 free to try · 8-question free warm-up
Claude Certified ArchitectPreparing for the certification
Scenario practice for the Claude Certified Architect – Foundations exam, arranged by its five domains.
Agentic Architecture & Orchestration · Claude Code Configuration & Workflows · Tool Design & MCP Integration · Context Management & Reliability · Prompt Engineering & Structured Output · Prompt Engineering · AI Agents & Tool Use
7 topics · 257 questions · 27 free to try
Python Programming
Everything in this category, unlocked once for $14.99 — no subscription, and free questions in every pack.
Compiled from university lectures and named practitioners who explain the mechanism, not the syntax. Not affiliated with or endorsed by any university, channel, creator or certification program.
Coming next
Each category is a separate one-time purchase. Votes decide the order.
AI Governance & Security
Alignment, red-teaming, prompt injection and the rules now shaping how AI ships.
Compiled from Policy talks, safety research and practitioner walkthroughs
Classical ML & Statistics
Bias-variance, regularisation, trees and the statistics still asked in every ML and data-science loop.
Compiled from University statistics courses and explainer channels
Would you want these too?
We're focused on AI for now. These aren't planned — but if enough people want one, we'll reconsider.
Algorithms & Data Structures
Complexity, sorting, graphs, dynamic programming.
Databases & SQL
Query planning, indexing, transactions, and the SQL that gets asked.