Data Processing Data Quality and Validation 3

Question 1

What is a master data management (MDM) system used for?

Accepted Answer

Providing a single consistent source of truth for critical business data entities

Answer

MDM creates and maintains a single authoritative record for key business entities like customers, products, and employees across all systems.

Question 2

Which metric expresses the percentage of records that pass all defined data quality rules?

Accepted Answer

Data quality score

Answer

A data quality score is calculated as the percentage of records that satisfy all defined validation rules, giving a measurable view of data health.

Question 3

What is a data steward responsible for?

Accepted Answer

Overseeing data quality, governance, and policies for a specific data domain

Answer

A data steward owns the quality and governance of a specific domain's data, defining rules, resolving issues, and ensuring compliance.

Question 4

What is format validation in data quality?

Accepted Answer

Verifying that data matches a required pattern or structure, such as phone number format

Answer

Format validation checks that a value conforms to a defined pattern, such as verifying that a US ZIP code contains exactly 5 digits.

Question 5

What is data lineage used for in data quality management?

Accepted Answer

Tracking the origin and transformations of data across its lifecycle

Answer

Data lineage documents where data came from, how it was transformed, and where it went, enabling traceability and root-cause analysis of quality issues.

Data Processing Practice Test

Data Processing Practice Test

Data Processing Data Quality and Validation 3