27 Dec Data cleansing
Question 1
Which analytics applies statistical algorithms and/or machine learning to historical data from multiple sources to ascertain the likelihood of outcomes and events?
Explanatory
Predictive
Descriptive
Historical
Question 2
What is the most widely used schema to develop data warehouses and dimensional data marts?
Constellation
Sun
Star
Galaxy
Question 3
What provides advanced data analysis and visualization tools, including multidimensional data analysis to support decision support?
Big data processing tool (BDP)
Data extraction, transformation, and loading tools (ETL)
Master data management (MDM)
Online analytical processing (OLAP)
Question 4
Which process results in the extraction of patterns and knowledge from large amounts of data?
Data dredging
Data mining
Data warehousing
Data cleansing
Question 5
What fundamental data structure was first developed to unite data from multiple, disparate systems on different technical platforms in different physical locations?
Data warehouse
Data aggregate
Data dashboard
Data processor
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