Ch 3

Question 1

Big data are useless to a company unless

Answer 1

the company has a place to analyze and easily access the information

Question 2

What does a query do?

Answer 2

allows you to ask a question and answer the said question through information pulled from the database

Question 3

What is the role of a relational database?

Answer 3

to store large amounts of data and create easy access to important information

Question 4

What is one function that a relational database can do that a non-relational database cannot?

Answer 4

join queries

Question 5

What benefit do non-relational databases have to a marketing analytics professional?

Answer 5

all of these

Question 6

What is a primary key in a relational database?

Answer 6

a column that uniquely identifies a row in the table

Question 7

Which type of non-relation database is best for the data structure of social media websites?

Answer 7

graph databases

Question 8

Which type of non-relation database is best for the simplest data modeling?

Answer 8

key-value stores

Question 9

True or False: Hadoop is an open-source software framework that stores and processes large amounts of data

Answer 9

true

Question 10

The Hadoop Ecosystem encompasses Hadoop’s various tools and projects which were designed to promote __________

Answer 10

optimal usability