BUSINESS INTELLIGENCE ANALYTICS DATA SCIENCE AND AI EXAM SCRIPT UPDATED QUESTIONS AND ACCURATE ANSWERS FULL SOLUTION

BUSINESS INTELLIGENCE ANALYTICS DATA
SCIENCE AND AI EXAM SCRIPT UPDATED
QUESTIONS AND ACCURATE ANSWERS
FULL SOLUTION

●● Four tasks of BI systems
Answer: Informing, deciding, problem solving, and project management.


●● Three primary activities in the BI process
Answer: Acquire data, perform analysis, and publish results.


●● Business intelligence vs. business analytics
Answer: BI looks at the past (reactive); business analytics looks at the
present/future (proactive).


●● Descriptive analytics
Answer: Analytics that describe past performance (what happened)
using dashboards and reports.


●● Predictive analytics
Answer: Analytics that use current and historical data to forecast what
will happen.

, ●● Prescriptive analytics
Answer: Analytics that recommend what action to take; the most
advanced type.


●● Data warehouse
Answer: An enterprise-wide facility that obtains, cleanses, organizes,
relates, and catalogs data.


●● Four functions of a data warehouse
Answer: Obtain data, cleanse data, organize and relate data, and catalog
data.


●● Possible problems with source data
Answer: Dirty data, missing values, inconsistent data, wrong granularity,
and too much data.


●● Dirty data
Answer: Erroneous or problematic data, such as an invalid value or
format.


●● Granularity
Answer: The level of detail in data, which can be too fine or too
summarized.