Question 1
2/ 2pts
Today, most organizations use the traditional approach to data management, where multiple information
systems share a pool of related data.
True
False
Question 2
2/ 2pts
_____ is the term used to describe enormous and complex data collections that traditional data
management software, hardware, and analysis processes are incapable of handling.
Data warehouse
Data mart
Big data
Knowledge base
Question 3
2/ 2pts
It is possible to restrict access to data depending on the database user's privileges.
True
False
Question 4
2/ 2pts
The database approach to managing data is superior to the file-based approach.
True
False
Question 5
2/ 2pts
A _____ is a simple database program whose records have no relationship to one another.
flat file
schema
relational system
user view
Question 6
2/ 2pts
For each data item, a data dictionary usually contains information such as the name of the data item, the
range of values that can be used, and the amount of storage needed for the item.
True
False
Question 7
2/ 2pts
A ______ is a collection of instructions and commands used to define and describe data and relationships
in a specific database.
data dictionary
schema
data definition language
data manipulation language
Question 8
2/ 2pts
Organizations&can collect many types of data from a wide variety of sources, but typically they only
collect structured data that fits neatly into traditional relational database management systems.
True
False
Question 9
2/ 2pts
In the context of the relational database model, projecting involves eliminating columns in a table.
True
False
Question 10
2/ 2pts
_____ is an approach that starts by investigating the general data and information needs of an
organization at the strategic level and then examines more specific data and information needs for the
functional areas and departments within the organization.
Data selecting
Enterprise data modeling
Data cleansing
Social graph analysis
Question 11
2/ 2pts
Which of the following statements is true of a database?
It is accessed primarily for use by an organization’s database administrator and data administrator.
It provides an essential foundation for an organization’s knowledge management and artificial
intelligence systems.
It is a collection of unstructured data.
It helps companies analyze information to&open new market opportunities.
Question 12
2/ 2pts
A database administrator (DBA)&must have a clear understanding of the fundamental business of&an
organization, be proficient in the use of selected database management systems, and stay abreast of
emerging technologies and new design approaches.
True
False
Question 13
2/ 2pts
Haley's employer has asked her to review tens of thousands of social media posts about their company's
products and compile this data into a database. In terms of the characteristics of big data, Haley is dealing
with ________.
volume
variety
velocity
veracity
Question 14
2/ 2pts
A database management system (DBMS) serves as an interface between an application program and&a
database.
True
False
Question 15
2/ 2pts
For the ____ operation, it is required that the the two tables have a common attribute.
delete
select
project
join
Quiz Score:30out of 30
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