Which of the Following Is True About Data Redundancy Within

question 74

Multiple Choice

Which of the following is true about data redundancy within one file?

• A) The appearance of a particular data value multiple times in one field always indicates data redundancy.
• B) Data redundancy cannot occur within a single file.
• C) The problems caused by data redundancy within one file are substantially different from the problems caused by data redundancy across multiple files.
• D) Data redundancy within one file occurs when different kinds of data (data about different entities) are merged in one file.
• E) Data redundancy within one file only occurs when a single kind of data (data about a single entity) is present in the file.