CompTIA Data+ (DA0-001) — Question 69

A table in a hospital database has a column for patient height in inches and a column for patient height in centimeters. This is an example of:

Answer options

• A. dependent data.
• B. duplicate data.
• C. invalid data
• D. redundant data

Correct answer: D

Explanation

The correct answer is D, redundant data, as the heights in inches and centimeters represent the same information in different units. Options A and B do not apply since the data is not dependent on each other and is not a duplicate of a single piece of information. Option C is incorrect because both height measurements are valid data types.