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Exam DA0-001 topic 1 question 6 discussion

Actual exam question from CompTIA's DA0-001
Question #: 6
Topic #: 1
[All DA0-001 Questions]

Which of the following BEST describes the issue in which character values are mixed with integer values in a data set column?

  • A. Duplicate data
  • B. Missing data
  • C. Data outliers
  • D. Invalid data type
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Suggested Answer: D 🗳️

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mcgoogol
11 months, 3 weeks ago
it couldnt be duplicate data! Most likely to be invalid
upvoted 1 times
7380698
11 months, 1 week ago
How come it is A? Are some of these questions incorrect? Is the comptia system wrong then?
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ronniehaang
2 years ago
Selected Answer: C
Outliers or extreme values can sometimes indicate invalid data. These values that lie far outside the normal range could signal a technical issue, or a problem with the collection or extraction of the data.
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Hiromi_Nakatani
2 years ago
Selected Answer: D
D. Invalid data type
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ronniehaang
2 years ago
Selected Answer: D
D. Invalid data type is the BEST description for the issue in which character values are mixed with integer values in a data set column. In this case, the data set column has a mix of two different data types - character values (e.g. text or string) and integer values (whole numbers). This is considered invalid as a data set column should have a consistent data type for all values in the column. When character values are mixed with integer values, it can cause problems during data analysis and processing, as the software may not know how to handle these mixed values. For example, if the analyst tries to perform mathematical operations on the column, the software may produce an error or incorrect results, as it does not know how to handle the character values.
upvoted 2 times
ronniehaang
2 years ago
Therefore, it is important to ensure that all data types in a data set column are consistent, in order to avoid problems during data analysis and processing. The issue of invalid data types can often be resolved by converting the values to a consistent data type, such as converting character values to integer values, or vice versa.
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CineFeX
2 years, 1 month ago
D. Invalid data type If a data set column contains character values mixed with integer values, it would be considered to have an invalid data type. A data type refers to the type of information that a column can contain, such as numbers, text, or dates. Mixing character values with integer values in the same column would be considered invalid because it violates the expected data type for the column. The other options (duplicate data, missing data, and data outliers) are not related to the data type of the values in the column.
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lordguck
2 years, 2 months ago
D: is correct
upvoted 2 times
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wanyu
2 years, 3 months ago
Selected Answer: D
It's D
upvoted 1 times
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