CDS Data Quality Management 2

Question 1

Which data quality dimension measures the degree to which data values fall within acceptable ranges or conform to defined domain rules?

Accepted Answer

Validity

Answer

Validity measures whether data values conform to defined business rules, formats, or acceptable value domains.

Question 2

A data steward discovers that the same customer appears 47 times in the CRM with slight name variations. Which remediation technique best addresses this?

Accepted Answer

Entity resolution / record linkage

Answer

Entity resolution (record linkage) identifies and merges records that refer to the same real-world entity, resolving duplicate customer records.

Question 3

What is the primary purpose of a data quality scorecard?

Accepted Answer

To track and communicate data quality KPIs over time

Answer

A data quality scorecard aggregates KPIs across dimensions and time periods to give stakeholders a repeatable view of quality health.

Question 4

In the context of data quality, what does 'fitness for purpose' mean?

Accepted Answer

Data satisfies the specific needs of the intended use case

Answer

Fitness for purpose means data quality is judged relative to whether the data adequately supports the specific decisions or processes it is intended for.

Question 5

Which technique uses statistical process control (SPC) charts to monitor data quality metrics over time?

Accepted Answer

Control charting

Answer

Control charts (SPC charts) plot quality metrics over time with upper/lower control limits to detect abnormal variation early.

(CDS) Certified Data Steward Practice Test

(CDS) Certified Data Steward Practice Test

CDS Data Quality Management 2