CompTIA DataX is an expert-tier certification in the CompTIA Xpert Series for experienced data scientists — covering advanced mathematics and statistics, modelling, machine learning, and specialised applications. ISO-accredited.
Timed, exam-style DY0-001 questions in a real simulator
Coverage weighted to the official exam objectives
Learn why the right answer is right — and the others aren't
Begin with the free practice exam — then go further when you're ready.
Try real CompTIA DataX exam questions before you commit.
The complete CompTIA DataX question bank to walk into DY0-001 ready.
Question coverage follows the official CompTIA DataX exam objectives and their weighting.
Advanced statistics, probability, and the math behind modelling.
Building, evaluating, and interpreting models.
Supervised, unsupervised, and deep-learning techniques.
MLOps, pipelines, and productionising models.
NLP, computer vision, and domain-specific applications.
DataX is an expert credential for seasoned data scientists who want to validate advanced, vendor-neutral skills across statistics, machine learning, and modelling.