Deck 1: Database Systems

Question 1

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

Answer 1

True

Question 2

When data are entered into a form and saved, they are placed in the underlying database as knowledge.

Answer 2

False

Question 3

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.

Answer 3

False

Question 4

Data constitute the building blocks of information.

Question 5

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

Question 6

Data is the result of processing raw facts to reveal its meaning.

Question 7

Corporations use only structured data.

Question 8

An advantage of database systems is that you needn't perform frequent updates and apply latest patches.

Question 9

Metadata describe the data characteristics and the set of relationships that links the data found within the database.

Question 10

Data and information are essentially the same thing.

Question 11

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

Question 12

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

Question 13

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

Question 14

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

Question 15

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

Question 16

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.

Question 17

Field refers to a collection of related records.

Question 18

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

Question 19

A data warehouse can store data derived from many sources.

Question 20

Structure is based on the type of processing to be performed on the data.

Question 21

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

A) Data inconsistency
B) Poor data security
C) Structural dependence
D) Conceptual dependence

Question 22

A data warehouse contains historical data obtained from the _____.

A) operational databases
B) desktop database
C) enterprise databases
D) workgroup databases

Question 23

End-user data is _____.

A) knowledge about the end users
B) raw facts of interest to the end user
C) information about a specific subject
D) accurate, relevant and timely information

Question 24

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

Question 25

_____ provide 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) Schemas

Question 26

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

A) Structured data
B) Raw data
C) Unstructured data
D) Obsolete data

Question 27

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 28

A workgroup database is a(n) _____ database.

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

Question 29

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

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

Question 30

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 31

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

A) Validation
B) A format
C) Knowledge
D) A database

Question 32

A desktop database is a _____ database.

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

Question 33

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

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

Question 34

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

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

Question 35

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

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

Question 36

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

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

Question 37

An XML database supports the storage and management of _____ XML data.

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

Question 38

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

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

Question 39

_____ serve as the intermediary between the user and the database.

A) DBMSs
B) Metadata
C) End-user data
D) Programming languages

Question 40

_____ is the result of revealing the meaning of raw facts.

A) End-user data
B) An encoded sample
C) An encrypted bit
D) Information

Question 41

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

A) structured data
B) transaction
C) management system
D) database system

Question 42

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

Question 43

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

Question 44

Information is produced by processing _____.

Question 45

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

Question 46

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

A) Data integrity
B) Data anomaly
C) Data ubiquity
D) Data quality

Question 47

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

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

Question 48

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

Question 49

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

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

Question 50

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

Question 51

A _____ is a collection of related records.

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

Question 52

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.

Question 53

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

Question 54

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.

Question 55

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

Question 56

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

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

Question 57

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

Question 58

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 59

To reveal meaning, information requires _____.

Question 60

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

Question 61

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

Question 62

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

Question 63

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.

Question 64

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

Question 65

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

Question 66

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

Question 67

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

Question 68

Discuss any three functions performed by the DBMS that guarantee the integrity and consistency of the data in the database.

Question 69

What are the problems associated with file systems? How do they challenge the types of information that can be created from the data as well as the accuracy of the information?

Question 70

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

Question 71

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

Question 72

Discuss some considerations when designing a database.

Question 73

When a database storesthe majority ofdata in RAM rather than in hard disks, itis referred to as a(n) _____ database.

Question 74

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

Question 75

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