Week 6 - Big Data and Data Visualization for Business Intelligence

Question 1

What is big data?

Answer 1

data that cannot be stored or processed easily using traditional tools/means

Question 2

What are the four Vs of Big Data

Answer 2

-volume
-variety
-velocity
-veracity

Question 3

What does volume refer to in big data

Answer 3

scale of data

Question 4

What does variety refer to in big data?

Answer 4

different forms of data

Question 5

What does velocity refer to in big data?

Answer 5

analysis of streaming data

Question 6

What does veracity refer to in big data?

Answer 6

uncertainty of data

Question 7

Example of a use for big data

Answer 7

retail organizations monitor social networks

Question 8

What is a Data Warehouse?

Answer 8

central repository of data integrated from one or more disparate sources

Question 9

What is a Data Mart?

Answer 9

a subset of a data warehouse used by small and medium-sized businesses and departments of large companies to support decision-making

Question 10

What is a Data Lake?

Answer 10

saves all data in its raw and unaltered form

Question 11

What is Hadoop?

Answer 11

used as a staging area for data to be loaded into data warehouse or mart

Question 12

What is data visualization?

Answer 12

graphical representation of info and data

Question 13

What is used in data visualization?

Answer 13

visual elements such as charts, graphs, and maps

Question 14

What is the point of data visualization?

Answer 14

provides way to see and understand trends, outliers, and patterns

Question 15

What is Business Intelligence?

Answer 15

involves wide range of applications for extraction to support improved decision making

Question 16

Where is the data used in Business Intelligence pulled from?

Answer 16

may be form multiple internal and external sources

Question 17

What are benefits of Business Intelligence?

Answer 17

-help detect fraud
-improve forecasting
-increase sales
-optimize operations
-reduce costs