Which of the following are true of a data warehouse? (Select all that apply) A)
ID: 3665498 • Letter: W
Question
Which of the following are true of a data warehouse? (Select all that apply)A) The data is time-stamped for comparison over time.
B) The data is standardized.
C) The data is operational and is used for day-to-day transactions.
D) It is a database Which of the following are true of a data warehouse? (Select all that apply)
A) The data is time-stamped for comparison over time.
B) The data is standardized.
C) The data is operational and is used for day-to-day transactions.
D) It is a database
A) The data is time-stamped for comparison over time.
B) The data is standardized.
C) The data is operational and is used for day-to-day transactions.
D) It is a database
Explanation / Answer
Which of the following are true of a data warehouse? (Select all that apply)
A) The data is time-stamped for comparison over time. ==> True. Because time-stamped data helps to analyze how data got changed over time. Hence it helps to produce data analysis and report.
B) The data is standardized. ==> True. Because standardized data helps to reach to cumulative decisions. That's why data are preferred to be standardized and categorized.
C) The data is operational and is used for day-to-day transactions. ==> False. Data of data warehouse is not used for daily transactions. Instead daily transaction data is used by data warehouse.
D) It is a database. ==> False. Data warehouse is a combination of lots of components. One of them may be database but it shouldn't call a database only.
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