Reading Quiz for Week 8

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MIS0855: Data Science

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According to IBM (2020), Extract, Transform, Load (ETL) processes are often needed because... *

1 point

Data from multiple sources need to be integrated for analysis

Data are in a single database

Organizations are unwilling to share their data

Data need to be made more compact so that it can be stored cheaply

According to IBM (2020), ETL process often involves... *

1 point

A thorough analysis of data

Data cleansing to improve the quality and consistency of data

The assessment of the market value of the data

Data compression

How does an ELT process differ from an ETL process (IBM 2020) *

1 point

They don't differ, ELT is just another name for ETL

ELT involves less data transformation before the data is loaded into a target system

ELT involves more work

ELT is not useful for very large datasets

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