DAT-325 Module 2 Quiz - Attempt 1

Submission View Your quiz has been submitted successfully. Question 1 6.2/ 6.2 points How can you identify data quality issues? Select one. Using data management Once you see the problem By word of mouth ® Using data profiling ¥ Hide question 1 feedback Data profiling is a robust statistical technique that allows for analyzing patterns and quality gaps in data sets. Question 2 6.2 / 6.2 points Which dimension is the most difficult to confirm? Select one. ® Accuracy Completeness Validity Uniqueness ‘¥ Hide question 2 feedback The accuracy dimension is difficult to confirm unless the organization collects the data again to confirm accuracy. Question 3 6.2/ 6.2 points How can you measure the quality of data? Select one. Knowing the characteristics of the data and if they are present You can't measure it, it has to be known when entered. Guessing Using a data model ¥ Hide question 3 feedback There are many characteristics that might contribute to quality data depending on the situation. It is important to know the characteristics of data in order to determine appropriate measurement.

Question 4 6.2 / 6.2 points What data quality dimensions must be considered in your requirements? Select all that apply. | Completeness | Consistency + Validity | Timeliness Symmetricality ¥ Hide question 4 feedback In 2013, The Data Management Body of Knowledge, UK, produced a white paper describing the six core dimensions of data quality. The dimensions of completeness, consistency, validity, and timeliness are four of the six dimensions. Question 5 6.2 / 6.2 points What qualifies an issue as a data quality issue? Select one. Data that isn't working Alack of data A condition of data that needs to be noted ® A condition of data that is an obstacle for consumption W Hide question 5 feedback An important element that qualifies an issue as a data quality issue is determining if there is a condition of the data that would be a barrier to a person being able to use or understand the data. If the data is not working, or there is missing data, these elements may contribute to the barrier to use. Question 6 6.2 / 6.2 points Which of the following is the best definition for data quality? Select one. A category for data The same as business requirements How data meets the goal of the project © Whether data meets a particular expectation or standard ¥ Hide question 6 feedback The measure of data quality is to what extent it meets the expectations and requirements, including industry standards or regulations. Question 7 6.2 / 6.2 points What is data profiling? Select one. Describing the data types Describing the data set o Finding features of the data set Transforming the data ¥ Hide question 7 feedback Data profiling is a technique for assessing data quality. A statistical program analyzes a pattern in the data structure to inform about the structural patterns and quality gaps.