Database-Management-System
August 29, 2024Database-Management-System
August 29, 2024KVS 22-12-2018 Part-B
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Question 18
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The process of removing deficiencies and loopholes in the data is called as____
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Data aggregation
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Extraction of data
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Compression of data
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Cleaning of data
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Question 18 Explanation:
→ Data cleansing or data cleaning is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database and refers to identifying incomplete, incorrect, inaccurate or irrelevant parts of the data and then replacing, modifying, or deleting the dirty or coarse data.
→ Data cleansing may be performed interactively with data wrangling tools, or as batch processing through scripting.
→ Data cleansing may be performed interactively with data wrangling tools, or as batch processing through scripting.
Correct Answer: D
Question 18 Explanation:
→ Data cleansing or data cleaning is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database and refers to identifying incomplete, incorrect, inaccurate or irrelevant parts of the data and then replacing, modifying, or deleting the dirty or coarse data.
→ Data cleansing may be performed interactively with data wrangling tools, or as batch processing through scripting.
→ Data cleansing may be performed interactively with data wrangling tools, or as batch processing through scripting.