Practice tests and hands-on labs for AI and cloud certifications
Learn AI by building it: hands-on labs, level-by-level courses and graded projects, plus practice tests for NVIDIA and Anthropic Claude certifications, and more.
You are building a customer support resolution agent that autonomously handles ticket classification, response generation, and escalation. The agent uses Claude with tool calling in an agentic loop. How should the loop determine when to stop executing?
“Just passed the exam today. The practice test look cover all part and similar format like real exam.”
“I wanted to know which test sections I needed to study before taking the proctored examination. My results here are consistent with my expectations (I know which sections I hadn't really studied at all).”
“Difficult enough questions. Clear and detailed explanation with visuals.”
Feedback at every step.
From the first practice question to the last graded project, each part tells you where you stand and what to do next.
Every answer explained
Each option says why it is right or wrong, then the full explanation follows, on every practice test.
Readiness by domain
A score for each exam domain against the pass line shows what to study and when to book.
Spaced repetition
Missed questions and flashcards come back on a schedule until they stick.
Courses with checkpoints
Level-by-level lessons, each with a checkpoint and a mini-game, progress saved as you go.
Hands-on labs
Fine-tune, serve and red-team on real GPUs, Kubernetes clusters and live LLM targets, checked step by step.
Graded projects
Build it and submit it. A rubric scores every criterion with feedback and evidence from your code.
Practice tests for every NVIDIA and Claude cert, plus the rest of your stack.
Full-length, exam-realistic mock tests (and hands-on labs) for each certification below.
NVIDIA-Certified Professional: Agentic AI
Claude Certified Architect - Foundations
NVIDIA-Certified Professional: Generative AI LLMs
Claude Certified Architect - Professional
NVIDIA-Certified Associate: Generative AI with LLMs
Claude Certified Developer - Foundations
NVIDIA-Certified Professional: AI Infrastructure
AWS Certified Solutions Architect - Associate
NVIDIA-Certified Associate: Generative AI Multimodal
Go beyond the exam: courses, hands-on labs and graded projects.
Level-by-level tracks with graded projects, and hands-on labs on real NVIDIA GPUs, Kubernetes clusters and live LLM targets. The first Claude Code lecture is free.
Claude Code, Level by Level
Predict how Claude Code behaves, prove it in your own terminal, ship real work. Eight levels, from your first session to the Agent SDK.
AI Engineer Course
From transformers to production-grade RAG agents. Hands-on, GPU-backed.
AI Red Teaming Course: LLM & Agent Pentesting
Audit, fuzz, and exploit real LLM apps, RAG pipelines, and agents on live sandboxed targets.
AI Infrastructure Engineer Course
Run GPU clusters that don't melt down. Kubernetes, GPU Operator, MIG, MPS, observability.
Start free, buy one certification, or take everything with Pro.
Free $0 No account needed for samples | One certification from $19.99 once One payment, lifetime access and updates | Pro $29.99 a month Cancel anytime | |
|---|---|---|---|
| Practice tests | Sample questions on every certification | Every test for the certification | Every test on every certification |
| Explanations and readiness by domain | |||
| Flashcards | Preview deck | Full deck for the certification | Every deck |
| Courses | Sample lessons | The course for the certification | Every course and track |
| Hands-on labs | Free labs | Every lab, on real GPUs and clusters | |
| Graded projects | Briefs and rubrics to read | Submit and get graded | |
| Updates when an exam changes | |||
| Try a sample test | Pick a certification | See Pro |
- Practice testsSample questions on every certification
- Explanations and readiness by domain
- FlashcardsPreview deck
- CoursesSample lessons
- Hands-on labsFree labs
- Graded projectsBriefs and rubrics to read
- Updates when an exam changes
- Practice testsEvery test for the certification
- Explanations and readiness by domain
- FlashcardsFull deck for the certification
- CoursesThe course for the certification
- Hands-on labs
- Graded projects
- Updates when an exam changes
- Practice testsEvery test on every certification
- Explanations and readiness by domain
- FlashcardsEvery deck
- CoursesEvery course and track
- Hands-on labsEvery lab, on real GPUs and clusters
- Graded projectsSubmit and get graded
- Updates when an exam changes
Our practice tests are designed to closely mirror the actual certification exams in terms of question format, difficulty level, and topic coverage. We regularly update our question banks based on the latest exam objectives and feedback from certified professionals.
Yes! Once you purchase a practice test, you have lifetime access to it. This includes all future updates and new questions we add to that exam. You can retake the tests as many times as you need.
Absolutely. Our dashboard provides comprehensive progress tracking including scores over time, performance by topic area, time spent studying, and comparison with other test-takers. You can easily identify weak areas and focus your study efforts.
Yes, every question comes with a detailed explanation of both the correct answer and why other options are incorrect. We also include references to official documentation and additional learning resources for deeper understanding.
Yes, within 30 days of purchase. Email [email protected] and tell us what didn't work for you. We refund as long as you haven't used much of what you bought yet: no more than 20% of a certification's practice tests or of a course's lessons, and no more than 5 hands-on labs. The full policy is in section 5 of our Terms of Service.
The GPU labs do: they run on NVIDIA GPU pods in the cloud with a full terminal in your browser. The Kubernetes labs run on a real cluster, and the red-team labs attack live LLM targets. Every lab has graded objectives that are checked automatically as you work, so you know exactly when you have met the target.
Pro includes every practice test, lab, course, and flashcard deck across all certifications for $29.99/month, cancel anytime. If you only need one exam, single-certification access is available separately.
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