Practice questions

Let’s try to practice the material in this chapter with a few example questions.

Questions

1. Which of the following is an appropriate time to check the quality of your data?
   1. After data manipulation
   2. After data transformation
   3. Before the final report
   4. All of the above
2. Which of the following is a data quality dimension?
   1. Data completeness
   2. Data retention
   3. Rows passed
   4. Data manipulation
3. Which of the following is a structured formal process for identifying the quality and efficiency of an entire database?
   1. Cross-validation
   2. Spot check
   3. Reasonable expectations
   4. Data profiling
4. Over 9,000! is a power company that is rapidly growing in its area. Recently, it purchased another power company that was one of its major competitors. This is an appropriate time to institute MDM. True or false?
   1. True
   2. False
5. Creating a document that explains what the variables in a dataset are, how they are used, and how they connect to one another represents which part of the MDM process?
   1. Data...