CDO Study Guide 2026
Everything you need to pass the CDO exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CDO Exam Format at a Glance
📚 CDO Topics to Study (67)
✍️ Sample CDO Questions & Answers
1. A CDO finds that three business units define 'active customer' differently, causing conflicting KPIs. Which governance artifact most directly resolves this?
A business glossary establishes one authoritative, owned definition for shared business terms.
2. Which U.S. federal law requires financial institutions to explain their information-sharing practices and safeguard sensitive customer data?
GLBA's Financial Privacy Rule and Safeguards Rule govern privacy notices and data protection for financial institutions.
3. A data program has a Cost Performance Index (CPI) of 0.8. What does this mean?
CPI = EV/AC, so 0.8 means cost overrun: each dollar spent produces only 80 cents of planned value.
4. Which metric measures the percentage of data records that pass all defined quality rules?
The Data Quality Pass Rate (also called conformity rate) measures the percentage of records that conform to all defined quality rules and standards.
5. What is an Architecture Decision Record (ADR) used for?
ADRs preserve the reasoning behind architectural choices so future teams understand why decisions were made.
6. A CDO discovers that 15% of customer records have duplicate entries. Which data quality dimension is most directly affected?
Uniqueness measures whether each entity is recorded only once; duplicate records directly violate this dimension.
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How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. We have not yet matched this exam's facts to an official source, so confirm fees, dates and rules with the exam body. Not reviewed by a subject-matter expert. Editorial policy