Chapter 6 quiz review

What is the first step you should take in managing data for a firm?

) Identify the data needed to run the business

physical database available for different logical views.

A DBMS makes the

attribute.

A characteristic or quality describing an entity is called a(n):

warehouse

A data ________ stores current and historical data of potential interest to decision makers throughout the company.

key field.

A field identified in a record as holding the unique identifier for that record is called the:

primary key.

A field identified in a table as holding the unique identifier of the table's records is called the:

with a crow's foot preceded by a short mark.

A one-to-many relationship between two entities is symbolized in a diagram by a line that ends:

in two short marks.

A one-to-one relationship between two entities is symbolized in a diagram by a line that ends:

) entity-relationship diagram.

A schematic of the entire database that describes the relationships in a database is called a(n):

intersection relation

A table that links two tables that have a many-to-many relationship is often called a(n):

) database server

A(n) ________ is a dedicated computer in a client/server environment that hosts a DBMS.

data quality audit

A(n) ________ is a structured survey of the accuracy and level of completeness of the data in an information system.

DBMS for desktop PC systems.

Access is a

SQL queries.

All of the following are tools or technologies for extracting information from unstructured data sets except:

data dictionary.

An automated or manual file that stores information about data elements and data characteristics such as usage, physical representation, ownership, authorization, and security is the:

) library's card-catalog.

An example of a pre-digital database is a

text mining

Businesses use ________ tools to search and analyze unstructured data sets, such as e-mails and memos.

display data in an easier-to-read format.

DBMS typically include report-generating tools in order to

D) discovery driven

Data mining is more ________ than OLAP.

data scrubbing.

Detecting and correcting data in a database or file that are incorrect, incomplete, improperly formatted, or redundant is called:

open-source software framework designed for distributing data-processing over inexpensive computers.

Hadoop is a(n):

tuple.

In a relational database, a record is also called a

select, project, and join.

In a relational database, the three basic operations used to develop useful sets of data are:

) row.

In a table for customers, the information about a single customer would reside in a single:

find new groupings within data.

In clustering, a data mining tool will:

NoSQL databases

MongoDB and SimpleDB are both examples of

popular open-source DBMS.

MySQL is a:

Analytic platforms.

Pre-configured hardware-software systems that use both relational and non-relational technology optimized for analyzing large datasets are referred to as:

referential integrity rules

Relational database systems use ________ to ensure that relationships between coupled tables remain consistent.

data redundancy

The confusion created by ________ makes it difficult for companies to create customer relationship management, supply chain management, or enterprise systems that integrate data from different sources.

presents data as they would be perceived by end users.

The logical view of a database:

five tables: for customers, employees, suppliers, parts, and sales.

The most basic business database is comprised of:

SQL.

The most prominent data manipulation language today is:

) normalization.

The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called:

creates a subset consisting of columns in a table.

The project operation:

creates a subset consisting of all records in the file that meet stated criteria.

The select operation:

relational DBMS.

The type of logical database model that treats data as if they were stored in two-dimensional tables is the:

Relationships between entities

What are the relationships that the relational database is named for?

Structuring the database

What is the purpose of a DBMS's data definition function?

Critical, as without one, your data may be inaccurate, incomplete, or difficult to retrieve

Which of the following best describes the importance of creating an accurate data model for your business's database?

The entity CUSTOMER with the attribute ADDRESS

Which of the following best illustrates the relationship between entities and attributes?

Non-relational DBMS

Which of the following database types would be best suited for storing multimedia?

Query wizard tool

Which of the following is not a typical feature of DBMS?

Data warehouse systems provide easy-to-use tools for managers to easily update data.

Which of the following statements about data warehouses is not true?

Web structure mining

Which of the following would you use to find out which Web sites with content related to database design were the most often linked to by other Web sites?

Web usage mining

Which of the following would you use to find patterns in user interaction data recorded by Web servers?

) one-to-one

You are working in the IT department of a small paper supply company and planning a new database that monitors employee benefits and productivity. What would be the relationship you need to establish between Employee_ID in the Employee table and Parking_spot_number in the Perks table?