Topic 1

Question 1

Data mining

Answer 1

Extraction of knowledge from data

Question 2

Churn

Answer 2

Customers Switching from one company to another

Question 3

Data engineering

Answer 3

Supports data science, making data available at scale

Question 4

Target

Answer 4

Specific purpose being aimed at (targeted), supervised learning needs a target and unsupervised learning does not

Question 5

Unsupervised data mining

Answer 5

Data mining techniques that do not use a target

Question 6

Data Science

Answer 6

Principles, processes, and techniques for understanding phenomena via the (automated) analysis of data

Question 7

Moore’s Law

Answer 7

12-18 months: Computing hardware processing complexity and power doubles every 12-18 months

Question 8

Bezo’s Law

Answer 8

The pricing of a unit of computing power decreases 50% every 3-years

Question 9

List the 5 characteristics used to assess the quality of a big data source

Answer 9

Volume, Variety, Velocity, Veracity, Value