In data management,duplicate datarefers to identical records that appear multiple times within a dataset. Such duplicates can lead to inaccurate analyses, inflated metrics, and erroneous business decisions. Identifying and removing duplicate records is a critical step in the data cleansing process to ensure data quality and reliability.
Option A:Duplicate data
Rationale:The dataset shows that the record with ID 376, Amount $400, and SKU ABV-DYH appears twice. This repetition indicates the presence of duplicate data, which can skew analysis results if not addressed.
Option B:Imputed data
Rationale:Imputed data refers to missing or incomplete data that has been estimated or filled in based on other available information. There is no evidence in the provided dataset to suggest that any data has been imputed.
Option C:Redundant data
Rationale:Redundant data involves unnecessary repetition of data across different fields or tables, leading to inefficiencies. While duplicate data is a form of redundancy, in this context, the specific issue is the exact repetition of entire records, making "duplicate data" the more precise term.
Option D:Corrupt data
Rationale:Corrupt data refers to data that has been altered or damaged, making it incorrect or unusable. The dataset provided does not exhibit signs of corruption, such as garbled text or invalid formats.
[Reference:The CompTIA Data+ Certification Exam Objectives emphasize the importance of identifying and addressing duplicate data as a key aspect of data cleansing to maintain data integrity and accuracy., partners.comptia.org, ]
Contribute your Thoughts:
Chosen Answer:
This is a voting comment (?). You can switch to a simple comment. It is better to Upvote an existing comment if you don't have anything to add.
Submit