DQ

Review 100 DQ practice questions with answer explanations and community insights.

Question 1

In statistics, two important measures are central tendency and dispersion.Dispersion analyses the:

  1. spread or variability of the data set.
  2. the mingling of data into a single value to summarise the data set.
  3. the distribution of business rules in the data set.
  4. average or spread of the data set.
  5. the level of (artificial) intelligence in the data set.

Question 2

Which of the following quality gurus was very critical of merit-pay and individual bonuses? He discouraged management by objectives and ranking of employees by performance.

  1. Dr Juran
  2. Dr Zeuss
  3. Dr Taguchi
  4. Dr Deming
  5. Dr Feigenbaum

Question 3

What is the MINIMUM value in this set of numbers: 1000, 15001, 23019, 42, 999, 43?

  1. 42
  2. 43
  3. 1000
  4. 8011
  5. 23019

Question 4

A supplier is negotiating a contract with your organisation to provide data. The part of the contract concerned with data quality is titled 'Data Quality Service Levels'. What do you NOT expect to find in this section?

  1. Timelines for resolution of data quality issues
  2. Data elements covered by the agreement
  3. Data Model of the supplier's database pertaining to the agreement
  4. Your staff to be notified in case that quality thresholds are not reached
  5. Quality dimensions, thresholds and escalation procedures

Question 5

Different channels implementing different data quality rules is:

  1. Bad, resulting in data of uneven quality in the operational systems leading to a lack of trust in the data
  2. Bad, as the agile processes will not be able to accommodate the variation easily
  3. Good, because the rules are made more robust with more sophisticated channels
  4. Bad, as the paper channel should be removed and everybody made to use the new portal channel
  5. Good, because online portal users are not as frustrated with lots of business rules as are paper users
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