DA0-002 · Question #44
A data analyst wants to understand several datasets at the variable level. Which of the following should the analyst consult to find this information?
The correct answer is B. Data dictionary. A data dictionary is the appropriate resource for a data analyst to consult to understand datasets at the variable level, as it provides detailed metadata for each variable.
Question
A data analyst wants to understand several datasets at the variable level. Which of the following should the analyst consult to find this information?
Options
- AData lineage
- BData dictionary
- CData flow diagram
- DData versioning
How the community answered
(37 responses)- A8% (3)
- B86% (32)
- C3% (1)
- D3% (1)
Why each option
A data dictionary is the appropriate resource for a data analyst to consult to understand datasets at the variable level, as it provides detailed metadata for each variable.
Data lineage describes the origin, transformations, and movement of data over time, not the detailed characteristics of individual variables.
A data dictionary is a centralized repository of information about data, providing detailed descriptions of each variable or field in a dataset, including its name, data type, description, format, and allowed values. This resource allows an analyst to understand the nuances of each variable, which is essential for variable-level analysis.
A data flow diagram illustrates how data moves through a system or process, not the characteristics of variables within a dataset.
Data versioning tracks changes to data over time, providing different versions of the dataset, but it does not describe the variables themselves.
Concept tested: Role of a data dictionary
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