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CompTIA : DY0-001 Exam Questions

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Mar 30,2026
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About DY0-001 Exam


The DY0-001 exam is the certification test for CompTIA DataX, an expert-level, vendor-neutral data science certification offered by CompTIA.
It’s designed to validate advanced, real-world skills in data science, machine learning, analytics, operations, and specialized data applications — ideal for experienced professionals working with data.
🧠 Exam Overview
Name: CompTIA DataX
Exam Code: DY0-001
Provider: CompTIA
Level: Expert-level / Advanced Recommended Experience: ~5+ years in data science or related work
Format & Logistics
🔹 Number of Questions: Up to 90
🔹 Question Types: Multiple-choice + performance-based
🔹 Duration: 165 minutes (2h 45m)
🔹 Languages: English and Japanese
🔹 Scoring: Pass/Fail only (no numeric score reported)
🔹 Delivery: At Pearson VUE testing centers or via online proctoring
📊 Exam Domains (What You’ll Be Tested On)
The exam blueprint is split into five major areas with approximate weights:
Mathematics & Statistics (~17%)
Probability, distributions, hypothesis testing, linear algebra and calculus concepts relevant to analytics.
Modeling, Analysis & Outcomes (~24%)
Data preparation, exploratory analysis (EDA), feature selection, model evaluation, and interpreting results.
Machine Learning (~24%) Core machine learning and some deep learning concepts, model training, tuning, and evaluation. Operations & Processes (~22%) Data workflows, pipelines, operational deployment, monitoring, versioning, and process automation. Specialized Applications of Data Science (~13%) Practical uses like NLP, computer vision, anomaly detection, signal processing, and industry-specific analytics.
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