1.file. 2.database. 3.entity. 4.record. 5.attribute. when working with a database, a group of...

1.1. file.file.

2.2. database.database.

3.3. entity.entity.

4.4. record.record.

5.5. attribute. attribute.

When working with a When working with a

database, a group of related database, a group of related

fields comprises a(n)…fields comprises a(n)…

1.1. file.file.


3.3. entity.entity.

4.4. record.record.

5.5. attribute.attribute.

When working with a When working with a

database, a group of related database, a group of related

fields comprises a(n)…fields comprises a(n)…

Fields are groups of characters such as a word, group of words, Fields are groups of characters such as a word, group of words, or a complete number.or a complete number.

1.1. file.file.


3.3. entity.entity.

4.4. field. field.


A person, place, thing, or A person, place, thing, or

event on which we store event on which we store

and maintain information and maintain information

using records is a(n)…using records is a(n)…

1.1. file.file.


3.3. entity.entity.

4.4. field.field.


A person, place, thing, or A person, place, thing, or

event on which we store event on which we store

and maintain information and maintain information

using records is a(n)…using records is a(n)…

An entity can be a customer (person), retail store (place), order An entity can be a customer (person), retail store (place), order (thing), or holiday shopping season (event). (thing), or holiday shopping season (event).

1.1. secondary field.secondary field.

2.2. primary field.primary field.

3.3. key field.key field.

4.4. first field.first field.

5.5. customer field.customer field.

A field in each record A field in each record

that uniquely identifies that uniquely identifies

that record is called that record is called

a…a…

1.1. secondary field.secondary field.

2.2. primary field.primary field.

3.3. key field.key field.

4.4. first field.first field.

5.5. customer field.customer field.

A field in each record A field in each record

that uniquely identifies that uniquely identifies

that record is called a…that record is called a…

Every record in a file should contain at least one field that uniquely identifies that record so the record can be retrieved, updated, or sorted.

1.1. Data securityData security

2.2. Program-data dependenceProgram-data dependence

3.3. Data redundancyData redundancy

4.4. Easily sharing data Easily sharing data

5.5. Inflexibility Inflexibility

Which of the following Which of the following

is is notnot a problem with a problem with

the traditional file the traditional file

environment?environment?

1.1. Data securityData security



4.4. Easily sharing data Easily sharing data

5.5. InflexibilityInflexibility


is is notnot a problem with a problem with

the traditional file the traditional file

environment?environment?

In most organizations, systems tend to grow independently and not according to some grand plan. Over time, problems occur with data redundancy and inconsistency, program-data dependence, inflexibility, poor data security, and an inability to share data among applications.


2.2. Data redundancy Data redundancy

3.3. Inflexible database retrievalInflexible database retrieval

4.4. Lack of data sharingLack of data sharing

5.5. Data inconsistencyData inconsistency


occurs when the same occurs when the same

data are stored in more data are stored in more

than one place or than one place or

location?location?







occurs when the same occurs when the same

data are stored in more data are stored in more

than one place or than one place or

location?location?

Data redundancy occurs when different divisions, functional areas, and groups in an organization independently collect the same piece of data and store it independently of each other.



3.3. Inflexible database Inflexible database retrievalretrieval




refers to the situation in refers to the situation in

which a change in a which a change in a

software program could software program could

require a change in the require a change in the

data used by that data used by that

program? program?







refers to the situation in refers to the situation in

which a change in a which a change in a

software program could software program could

require a change in the require a change in the

data used by that data used by that

program?program?

Program-data dependence refers to the coupling of data stored in files and the specific programs required to update and maintain those files such that changes in programs require changes to the data.

1.1. middleware.middleware.

2.2. shareware.shareware.

3.3. enterprise application software.enterprise application software.

4.4. database management system.database management system.

5.5. operating system.operating system.

The software that acts The software that acts

as an interface as an interface

between application between application

programs and the programs and the

physical data files is… physical data files is…

1.1. middleware.middleware.

2.2. shareware.shareware.

3.3. enterprise application software.enterprise application software.

4.4. database management system.database management system.

5.5. operating system.operating system.

The software that acts The software that acts

as an interface between as an interface between

application programs application programs

and the physical data and the physical data

files is…files is…

A database management system is simply the software that permits an organization to centralize data, manage them efficiently, and provide access to the stored data by application programs.

1.1. Conceptual schemaConceptual schema

2.2. Logical viewLogical view

3.3. Physical viewPhysical view

4.4. Physical schemaPhysical schema

5.5. Subschema Subschema


refers to the presentation refers to the presentation

of data as they would be of data as they would be

perceived by end users?perceived by end users?

1.1. Conceptual schemaConceptual schema

2.2. Logical viewLogical view

3.3. Physical viewPhysical view

4.4. Physical schemaPhysical schema

5.5. SubschemaSubschema


refers to the presentation refers to the presentation

of data as they would be of data as they would be

perceived by end users?perceived by end users?

The physical view of data shows how they are actually organized and structured on physical storage media.

1.1. conceptual schema.conceptual schema.

2.2. logical view.logical view.

3.3. physical view.physical view.

4.4. physical schema.physical schema.

5.5. subschema.subschema.

The logical description of The logical description of

the entire database the entire database

showing all the data showing all the data

elements and elements and

relationships among relationships among

them is called the …them is called the …

1.1. conceptual schema.conceptual schema.

2.2. logical view.logical view.

3.3. physical view.physical view.

4.4. physical schema.physical schema.

5.5. subschema.subschema.

The logical description of The logical description of

the entire database the entire database

showing all the data showing all the data

elements and elements and

relationships among them relationships among them

is called the …is called the …

The specifications of how data from the conceptual schema are stored on physical media is termed the physical schema or internal schema.

1.1. Enterprise applicationsEnterprise applications

2.2. Data definition languageData definition language

3.3. Data manipulation languageData manipulation language

4.4. Data dictionaryData dictionary

5.5. Not sureNot sure


is is notnot a component of a a component of a

database management database management

system? system?

1.1. Enterprise applicationsEnterprise applications

2.2. Data definition languageData definition language

3.3. Data manipulation languageData manipulation language

4.4. Data dictionaryData dictionary



is is notnot a component of a a component of a

database management database management

system?system?

A database management system must have a data definition language, a data manipulation language, and a data dictionary.

1.1. data definition language.data definition language.

2.2. data manipulation language.data manipulation language.

3.3. data dictionary.data dictionary.

4.4. application program.application program.


An automated file that An automated file that

stores definitions of data stores definitions of data

elements and data elements and data

characteristics is called characteristics is called

a(n)…a(n)…

1.1. data definition language.data definition language.

2.2. data manipulation language.data manipulation language.

3.3. data dictionary.data dictionary.

4.4. application program.application program.


An automated file that An automated file that

stores definitions of data stores definitions of data

elements and data elements and data

characteristics is called characteristics is called

a(n)…a(n)…

The data dictionary can produce lists and reports of data use, groupings, and program locations.

1.1. HierarchicalHierarchical

2.2. TableTable

3.3. NetworkNetwork

4.4. RelationalRelational


Which type of data model Which type of data model

represents all data in the represents all data in the

database as simple two-database as simple two-

dimensional tables?dimensional tables?

1.1. HierarchicalHierarchical

2.2. TableTable

3.3. NetworkNetwork

4.4. RelationalRelational


Which type of data model Which type of data model

represents all data in the represents all data in the

database as simple two-database as simple two-

dimensional tables?dimensional tables?

The relational DBMS is the most popular type for PCs as well as for larger computers and mainframes.

1.1. SelectSelect

2.2. JoinJoin

3.3. ProjectProject

4.4. PrintPrint

5.5. Not sure Not sure

Which of the following is Which of the following is

notnot a basic operation in a a basic operation in a

relational database?relational database?

1.1. SelectSelect

2.2. JoinJoin

3.3. ProjectProject

4.4. PrintPrint



notnot a basic operation in a a basic operation in a

relational database?relational database?

The select operation creates a subset of all records that meet the stated criteria. The join operation combines relational tables. The project operation creates a subset of columns in a table, creating new tables that contain only the information required.

1.1. SmallSmall

2.2. StableStable

3.3. FlexibleFlexible

4.4. Adaptive Adaptive

5.5. Networked Networked


not not a characteristic of a characteristic of

data structures that have data structures that have

been normalized? been normalized?

1.1. SmallSmall

2.2. StableStable

3.3. FlexibleFlexible

4.4. Adaptive Adaptive

5.5. NetworkedNetworked


notnot a characteristic of a characteristic of

data structures that data structures that

have been normalized?have been normalized?

To use a relational database model effectively, complex groupings of data must be streamlined to minimize redundant data elements and awkward many-to-many relationships through the process of normalization.

1.1. mine.mine.

2.2. warehouse.warehouse.

3.3. store.store.

4.4. network.network.

5.5. crate.crate.

A database that stores A database that stores

current and historical current and historical

data of potential interest data of potential interest

to managers throughout to managers throughout

the company is called a the company is called a

data … data …

1.1. mine.mine.

2.2. warehouse.warehouse.

3.3. store.store.

4.4. network.network.

5.5. crate.crate.

A database that stores A database that stores

current and historical current and historical

data of potential interest data of potential interest

to managers throughout to managers throughout

the company is called a the company is called a

data …data …

The data stored in a data warehouse originate in many core operational systems and external sources. The data are standardized into a common data model and consolidated so that they can be used across the enterprise for management analysis and decision making.

1.1. Data miningData mining

2.2. Data warehousingData warehousing

3.3. Data storingData storing

4.4. Data networkingData networking

5.5. Data cratingData crating


often used to provide often used to provide

information for targeted information for targeted

marketing campaigns?marketing campaigns?

1.1. Data miningData mining

2.2. Data warehousingData warehousing

3.3. Data storingData storing

4.4. Data networkingData networking

5.5. Data cratingData crating


often used to provide often used to provide

information for targeted information for targeted

marketing campaigns?marketing campaigns?

Data mining uses a variety of techniques to find hidden patterns and relationships in large pools of data and infer rules from them that can be used to predict future behavior and guide decision making.

1.1. Structured Query LanguagesStructured Query Languages

2.2. Hypermedia databasesHypermedia databases

3.3. Ad-hoc query languagesAd-hoc query languages

4.4. Common gateway interfaceCommon gateway interface

5.5. Database serversDatabase servers


allows users to access allows users to access

topics on a Web site in topics on a Web site in

whichever order they whichever order they

wish?wish?

1.1. Structured Query LanguagesStructured Query Languages

2.2. Hypermedia databasesHypermedia databases

3.3. Ad-hoc query languagesAd-hoc query languages

4.4. Common gateway interfaceCommon gateway interface

5.5. Database serversDatabase servers


allows users to access allows users to access

topics on a Web site in topics on a Web site in

whichever order they whichever order they

wish?wish?

The hypermedia database approach to information management stores chunks of information in the form of nodes connected by links the user specifies. The nodes can contain text, graphics, sound, full-motion video, or executable computer programs.

1.1. SQL script.SQL script.

2.2. Data language script.Data language script.

3.3. Java script.Java script.

4.4. Access script.Access script.

5.5. Common gateway interface. Common gateway interface.

A specification for A specification for

transferring information transferring information

between a Web server between a Web server

and a program designed and a program designed

to accept and return data to accept and return data

is called …is called …

1.1. SQL script.SQL script.

2.2. Data language script.Data language script.

3.3. Java script.Java script.

4.4. Access script.Access script.

5.5. Common gateway interface.Common gateway interface.

A specification for A specification for

transferring information transferring information

between a Web server between a Web server

and a program designed and a program designed

to accept and return data to accept and return data

is called …is called …

Common gateway interfaces can be written in any programming language.

1.1. resource administration.resource administration.

2.2. data administration.data administration.

3.3. database administration.database administration.

4.4. Data-mining administration.Data-mining administration.


An organizational An organizational

function with the power function with the power

to define information to define information

requirements for the requirements for the

entire company is called entire company is called

a…a…

1.1. resource administration.resource administration.



4.4. data-mining administration.data-mining administration.


An organizational An organizational

function with the power function with the power

to define information to define information

requirements for the requirements for the

entire company is called entire company is called

a…a…

Data administration is responsible for the specific policies and procedures through which data can be managed as an organizational resource. The fundamental principle of data administration is that all data are the property of the organization as a whole.

1.1. resources administration.resources administration.





A database design and A database design and

management group management group

performs the functions of performs the functions of

… …

1.1. resources administration.resources administration.





A database design and A database design and

management group management group

performs the functions of performs the functions of

……

The database design and management group establishes the physical database, the logical relations among elements, and the access rules and procedures.

1.file. 2.database. 3.entity. 4.record. 5.attribute. when working with a database, a group of...

Documents

data inflexibilityin

coupling of data

piece of data

physical data files

poor data security

customer field

asecondary field

software program