Deck 1: Database Systems

Question 1

One disadvantage of the DBMS is that it increases the risk of data security breaches.

Answer 1

False

Question 2

One advantage of a database system over previous data management approaches is that the database system is considerably less complex.

Answer 2

False

Question 3

A query language is a procedural language.

Answer 3

False

Question 4

An operational database is sometimes referred to as an enterprise database.

Question 5

Data and information are essentially the same thing.

Question 6

One disadvantage of a database system over previous data management approaches is increased costs.

Question 7

Metadata present a more complete picture of the data in the database than the data itself.

Question 8

Data processing can be as simple as organizing data to reveal patterns.

Question 9

Database programming languages receive all application requests and translate them into the complex operations required to fulfill those requests.

Question 10

Historically,a manual file system was composed of a system of file folders and filing cabinets.

Question 11

The only way to access the data in a database is through the DBMS.

Question 12

A data warehouse can store data derived from many sources.

Question 13

Data constitute the building blocks of information.

Question 14

Initially the files within a computer file system were similar to manual files.

Question 15

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.

Question 16

Information implies familiarity,awareness,and understanding knowledge as it applies to an environment.

Question 17

We are now said to be entering the "knowledge age."

Question 18

Corporations use only structured data.

Question 19

The DBMS reveals much of the database's internal complexity to the application programs and users.

Question 20

The same data might be simultaneously structured and unstructured depending on the intended processing.

Question 21

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

A) desktop
B) workgroup
C) enterprise
D) transactional

Question 22

____ exists when different versions of the same data appear in different places.

A) Data inconsistency
B) Data consistency
C) Better data integration
D) Improved decision making

Question 23

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

A) query
B) operating system
C) database management system
D) application program

Question 24

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

A) desktop
B) workgroup
C) enterprise
D) transactional

Question 25

A desktop database is a ____ database.

A) single-user
B) multiuser
C) workgroup
D) distributed

Question 26

The response of the DBMS to a query is the ____.

A) ad hoc query
B) ad hoc response
C) query result set
D) integrated view of the data

Question 27

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

A) Structured
B) Semistructured
C) Unstructured
D) Historical

Question 28

The database structure in a DBMS is stored as a ____.

A) file
B) collection of files
C) set of key/value pairs
D) collection of queries

Question 29

The ____ structure is quite different from that of an operational or transactional database.

A) data warehouse
B) workgroup database
C) enterprise database
D) distributed database

Question 30

A ____ database supports data distributed across several different sites.

A) single-user
B) multiuser
C) centralized
D) distributed

Question 31

Accurate,relevant,and timely information is the key to ____.

A) data management
B) good decision making
C) knowledge
D) understanding

Question 32

Most decision-support data are based on historical data obtained from ____.

A) operational databases
B) data warehouses
C) enterprise databases
D) workgroup databases

Question 33

____ is used to reveal the meaning of data.

A) Raw facts
B) Knowledge
C) Formatting
D) Information

Question 34

End-user data is ____.

A) raw facts about the end-user
B) raw facts of interest to the end-user
C) data about data
D) accurate,relevant and timely information

Question 35

____ is the body of information and facts about a specific subject.

A) Data
B) Information
C) Knowledge
D) A database

Question 36

The ____ serve(s)as the intermediary between the user and the database.

A) DBMS
B) metadata
C) end-user data
D) programming language

Question 37

____ data exist in the format in which they were collected.

A) Structured
B) Semistructured
C) Unstructured
D) Historical

Question 38

A(n)____ database is designed to support a company's day-to-day operations.

A) desktop
B) workgroup
C) enterprise
D) transactional

Question 39

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

A) Queries
B) End-user data
C) Metadata
D) Information

Question 40

A workgroup database is a(n)____ database.

A) single-user
B) multiuser
C) enterprise
D) distributed

Question 41

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

A) database management system
B) database management
C) management system
D) database system

Question 42

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

A) database
B) field
C) record
D) file

Question 43

The organization of the data within the folders in a manual file system was determined by ____.

A) the date of creation
B) its expected use
C) the title of the documents in the folder
D) the data processing specialist

Question 44

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

A) database
B) column
C) record
D) file

Question 45

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

Question 46

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

Question 47

A(n)____________________ focuses primarily on storing data used to generate information required to make tactical or strategic decisions.

Question 48

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

Question 49

____________________ is the result of processing raw data to reveal its meaning.

Question 50

____ relates to the activities that make the database perform more efficiently in terms of storage and access speed.

A) Performance tuning
B) Database design
C) Query access
D) Database management

Question 51

Most data you encounter is best classified as ____.

A) Structured
B) Semistructured
C) Unstructured
D) Historical

Question 52

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

Question 53

Which of the following is an example of structured data?

A) A Web page
B) An e-mail
C) A memo
D) A spreadsheet

Question 54

To reveal meaning,information requires ____________________.

Question 55

XML data is ____.

A) structured
B) multistructured
C) unstructured
D) semistructured

Question 56

____ data are the result of formatting to facilitate storage,use and generation of information.

A) Structured
B) Semistructured
C) Unstructured
D) Historical

Question 57

A ____ is a collection of related records.

A) database
B) field
C) column
D) file

Question 58

In early computer file systems,a(n)___________________________________ was hired to create a computer-based system that would track data and produce required reports.

Question 59

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

Question 60

Data ____________________ is a discipline that focuses on proper generation,storage and retrieval of data.

Question 61

Describe what metadata are and what value they provide to the database system.

Question 62

What are some reasons for studying file systems?

Question 63

The term _________________________ refers to scattered locations storing the same basic data.

Question 64

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

Question 65

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

Question 66

Describe the five types of users identified in a database system.

Question 67

____________________ exists when the same data are stored unnecessarily at different places.

Question 68

What are the advantages of having the DBMS between the end user's applications and the database?

Question 69

Discuss some considerations when designing a database.

Question 70

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