C175- Lesson 1 - Intro to Databases, Information and Data Quiz

___________________ 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 (database management system)

Data constitute the building blocks of information. True or False

True

To reveal meaning, information requires _________________.

context

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

its expected use

______ 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

metadata

A workgroup database is a(n) _____ database. A. single-user B. multiuser C. desktop D. distributed

multiuser

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.

the data always yields consistent results.

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

true

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

true

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

true

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

true

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

workgroup

_____ serve as the intermediary between the user and the database. A. DBMSs B. Metadata C. End-user data D. Programming languages

DBMSs

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

Data Redundancy

_____ 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

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

Data integrity

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

Data redundancy

______________ 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

False

Data and information are essentially the same thing. True or False

False

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

False

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

False

Field refers to a collection of related records. T/F

False

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

False

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

False

_____ refer to a type of database that stores most of its data in RAM rather than in hard disks. A. Integrated databases B. Cloud databases C. Desktop databases D. In-memory databases

In-memory databases

_____ is the result of revealing the meaning of raw facts. A. End-user data B. An encoded sample C. An encrypted bit D. Information

Information

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

Information

_____ is the body of information and facts about a specific subject. A. Validation B. A format C. Knowledge D. A database

Knowledge

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

Metadata

_____ 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

Performance Tuning

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

Performance Tuning

Most data that can be encountered are best classified as _____ . A. Structured B. Semistructured C. Unstructured D. Historical

Semistructured

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.

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

Data processing cane be as simple as organizing data to reveal patterns. True or False

True

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

True

_____ data exist in a format that does not lend itself to processing that yields information. A. Structured B. Semistructured C. Unstructured D. Historical

Unstructured

_____ data exist in the format in which they were collected. A. Structured B. Semistructured C. Unstructured D. Historical

Unstructured

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

XML,Extensible Markup Language

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. A. query B. operating system C. database management system D. application

application

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

collection of files

Information is produced by processing ________________.

data

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

data anomaly

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

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

database system

A(n) ______ database is used by an organization and supports many users across many departments. A. desktop B. workgroup C. enterprise D. transactional

enterprise

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

false

Corporations use only structured data. T/F

false

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

false

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

false

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

false

A _____ is a character or group of characters that has a specific meaning. A. database B. field C. record D. file

field

A _____ is a collection of related records. A. schema B. field C. column D. file

file

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

formatted

Accurate, relevant, and timely information is the key to _______. A. data management B. good decision making C. knowledge D. understanding

good decision making

Data warehouse contains historical data obtained from the_____. A. operational databases B. desktop database C. enterprise databases D. workgroup databases

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

query result set

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

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

record

An XML database supports the storage and management of _____ XML data. A. structured B. multistructured C. fullystructured D. semistructured

semistructured

A desktop database is a _____ database. A. single-user B. multiuser C. workgroup D. distributed

single-user

_____ 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

structured data