Skill tests
Test what you know
Short, timed multiple choice tests for developers. Free, no account needed. You get a score and an explanation for every answer.
5 tests
AI and Automation Engineer Practice Test
20 multiple choice questions for AI and automation engineers: Python, LLM basics, RAG, tool calling, evaluation and reliable workflows.
20 questions · 20 min · pass 60%
AI & DataData Analyst (SQL and Power BI) Practice Test
20 multiple choice questions for data analysts: SQL, Power BI and DAX, data modelling, statistics and clear reporting.
20 questions · 20 min · pass 60%
AI & DataData Engineer Practice Test
20 multiple choice questions for data engineers: SQL, Python, pipelines, warehouses, orchestration, data quality and streaming.
20 questions · 20 min · pass 60%
AI & DataMachine Learning Engineer Practice Test
20 multiple choice questions for machine learning engineers: Python, SQL, evaluation, overfitting, metrics, data leakage and deployment.
20 questions · 20 min · pass 60%
AI & DataWorkflow Automation Developer Practice Test
20 multiple choice questions for workflow automation developers: webhooks, APIs, JSON, error handling and building reliable automations.
20 questions · 20 min · pass 60%
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