Practice questions for 41 AI and machine learning certification tracks, from AI Practitioner to Generative AI Developer Professional, with every answer option explained. Over 1,000 questions are free; one purchase unlocks all 2,153 plus 18 interactive labs.
A real question from the Generative AI LLMs track. Pick an answer.
A researcher describes how a model like BERT was pretrained: portions of the input text were hidden, and the model learned to predict the missing pieces using the surrounding context, without needing humans to manually label each training example. Which broader concept does this training approach represent?
The app doesn't just mark you right or wrong. It explains why the right answer is right and why the others fail, which is how you learn to spot the near-miss on exam day.
Vendor certifications and the fundamentals behind them, in one place.
AI Practitioner, Machine Learning Engineer Associate, ML Specialty, Generative AI Developer Professional, Data Engineer.
Azure AI Fundamentals and AI Apps and Agents Developer (AI-103).
Professional Machine Learning Engineer and Generative AI Leader.
Generative AI LLMs (NCA-GENL), AI Infrastructure, Multimodal, Databricks Generative AI Engineer.
ML basics, deep learning, neural networks, NLP, MLOps, explainable AI, generative AI.
Play with gradient descent, attention and more. 3 labs free, 18 with the unlock.
The questions, explanations and labs ship inside the app. The Briefing tab and the one-time unlock need a connection; everything else works offline.
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| Free | Full unlock | |
|---|---|---|
| Practice questions | 1,008 | 2,153 |
| Interactive labs | 3 | 18 |
| Every option explained, review mode | ✓ | ✓ |
| Offline, no account | ✓ | ✓ |
| Price | Free | One-time in-app purchase |
Yes. All questions, explanations and labs are built into the app. Only the Briefing tab (news and podcast) and the unlock purchase need a connection.
41 tracks, including AWS AI Practitioner, AWS Machine Learning Engineer Associate, AWS Generative AI Developer Professional, Azure AI Fundamentals, AI-103, Google Professional Machine Learning Engineer, NVIDIA NCA-GENL and Databricks Generative AI Engineer, plus fundamentals like deep learning and MLOps.
The first 30 questions of every track are free, 1,008 in all, plus 3 interactive labs. A one-time in-app purchase unlocks all 2,153 questions and 18 labs.
No. The unlock is a single purchase.
No. They are original practice questions written against each vendor's published exam guide. The app is an independent study aid.
iPhone and iPad with iOS or iPadOS 16 or later.
Free on the App Store for iPhone and iPad. Works anywhere.
AI & ML Tutor is an independent study aid and is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Microsoft, Google, NVIDIA, Databricks or Anthropic. Certification names are trademarks of their owners.