IS 300 Ch 1

___ databases focus primarily on storing data used to generate information required to make tactical or strategic decisions

Analytical

A(n) __ is a collection of programs that manages the database structure and controls access to the data stored in the database

DBMS

___ serve as the intermediary between the user and the database

DBMSs

___ exists when different and conflicting versions of the same data appear in different places

Dada inconsistency

Information is produced by processing __

Data

The DBMS uses the ___ to look up the required data component structures and relationships, thus relieving programmers from having to code such complex relationships in each program

Data dictionary

___ exists when different versions of the same data appear in different places

Data inconsistency

__ exists when it is possible to make changes in the data storage characteristics without affecting an application program's ability to access data

Data independence

___ is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions

Data integrity

___ exists when the same data are stored unnecessarily at different places

Data redundancy

An advantage of database systems is that you needn't perform frequent updates and apply latest patches (T/F)

F

An operational database is sometimes referred to as an enterprise database (T/F)

F

Corporations use only structured data (T/F)

F

Data and information are essentially the same thing (T/F)

F

Data anomaly is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions (T/F)

F

Data is the result of processing raw facts to reveal its meaning (T/F)

F

Database programming languages receive all application requests and translate them into the complex operations required to fulfill those requests (T/F)

F

Field refers to a collection of related records (T/F)

F

One advantage of a database system over pervious data management approaches is what the database system is considerably less complex (T/F)

F

One disadvantage of the DBMS is that it increases the risk of data security breaches (T/F)

F

Structural dependence exists when it is possible to make changes in the file structure without affecting the application program's ability to access the data (T/F)

F

The DBMS reveals much of the database's internal complexity to the application programs and users (T/F)

F

When data are entered into a form and saved, they are placed in the underlying database as knowledge (T/F)

F

___ is the result of processing raw data to reveal its meaning

Information

___ is the result of revealing the meaning of raw facts

Information

___ is the body of information and facts about a specific subject

Knowledge

__ is data about data through which the end-user data are integrated and managed

Metadata

____ provide a description of the data characteristics and the set of relationships that link the data found within the database

Metadata

___ relates to activities that make a database operate more efficiently in terms of storage and access speed

Performance tuning

___ relates to the activities that make the database execute transactions more efficiently in terms of storage and access speed

Performance tuning

___ are the result of formatting disorganized data in order to facilitate storage, use and generation of information

Structured data

A data warehouse can store data derived from many sources (T/F)

T

Data constitute the building blocks of information (T/F)

T

Data processing can be as simple as organizing data to reveal patterns (T/F)

T

Metadata describe the data characteristics and the set of relationships that links the data found within the database (T/F)

T

One disadvantage of a database system over pervious data management approaches is increased costs (T/F)

T

Structure is based on the type of processing to be performed on the data (T/F)

T

The only way to access the data in a database is through the DBMS (T/F)

T

___ data exist in a format that does not lend itself to processing that yields information

Unstructured

___ data exist in the format in which they were collected

Unstructured

___ is a special language used to represent and manipulate data elements in a textual format

XML

Data is said to be verifiable if: a. the data always yields consistent results b. the data cannot be changed or manipulated c. the data is obtained from trusted sources d. the data is stored in different places within the database

a. the data always yields consistent results

A(n) __ is a spur-of-the-moment question

ad hoc query

A(n) ____ might be written by a programmer or it might be created through a DBMS utility program

application

A database that is created and maintained using services such as Microsoft Azure or Amazon AWS is called a(n) ___ database

cloud

The database structure in a DBMS is stored as a ___

collection of files

To reveal meaning, information requires ___

context

Which of the following refers to the situation where different versions of the same data are stored at different places because they weren't updated consistently? a. Data query b. Data integrity c. Data dictionary d. Data redundancy

d. Data redundancy

Which of the following is true of spreadsheet applications? a. They provide enhanced security and robust data sharing features. b. They do not allow manipulation of data once entered c. They are a better alternative to databases d. They enhance the user's ability to understand the data

d. They enhance the user's ability to understand the data

A(n) __ develops when all required changes in the redundant data are not made successfully

data anomaly

The term __ refers to an organization of components that define and regulate the collection, storage, management and use of the data within a database environment

database system

A(n) ___ database is used by an organization and supports many users across many departments

enterprise

A ___ is a character or group of characters that has a specific meaning

field

A __ is a collection of related records

file

Raw data must be properly _____ for storage, processing and presentation.

formatted

Accurate, relevant, and timely information is the key to ___

good decision making

When a database stores the majority of data in RAM rather than in hard disks, it is referred to as a(n) __ database

in-memory

The term __ refers to scattered locations storing the same basic data

islands of information

The organization of data within folders in a manual file system is determined by ____

its expected use

A workgroup database is a(n) __ database

multiuser

A data warehouse contains historical data obtained from the ___

operational databases

A(n) ___ is a specific request issued to the DBMS for data manipulation

query

The response of the DBMS to a query is the ___

query result set

End-user data is ___

raw facts of interest to the end user

A ___ is a logically connected set of one or more fields that describes a person, place, or thing

record

An XML database supports the storage and management of ___ XML data

semistructured

Most data that can be encountered are best classified as _____.

semistructured

A desktop database is a ___ database

single-user

Web and mobile technologies that enable "anywhere, anytime, always on" human interactions are forms of __

social media

A(n) __ database supports a relatively small number of users (usually fewer than 50) or a specific department within an organization

workgroup