Technology in Action – Chapter 11

Data redundancy ensures that the data contained in the database is accurate and reliable.

True or False?

False

A large data mart might require a database administrator to design, construct, and maintain it.

True or False?

False

A group of related records is called a table.

True or False?

True

An employee’s ID number, name, company, position, address, city, state and Zip Code make up a record.

True or False?

True

When using Access, the text of the Gettysburg Address would be stored in a short text field.

True or False?

False

Employees’ last names would usually make an appropriate primary-key field.

True or False?

False

Normalization means that there are no data entry errors in a database.

True or False?

False

In a relational database, when two tables have a common field, the link between the tables is known as a hyperlink.

True or False?

False

A database schema defines the name, data type, and length of each field in the database.

True or False?

True

A last name field is an example of a friend that should have a default value.

True or False?

False

Most databases can import electronic data from other software applications.

True or False?

True

A filter is limited to extracting data from a single table.

True or False?

True

The information in a data mart spans an entire enterprise.

True or False?

False

Real-time processing means that transactions are updated when they occur.

True or False?

True

A summary report provides a list of the transactions that occurred during a specified time period.

True or False?

False

Data mining analyzes and investigates large amounts of data with the intention of discovering significant patterns or trends.

True or False?

True

A _______ is a group of related data that can be stored, sorted, organized, and queried.

a) database
b) macro
c) spreadsheet
d) memo

database

If a school keeps two lists, one for student registration and one for student financial information, both containing name and address information, this is an example of data _______.

a) redundancy
b) completeness
c) integrity
d) normalization

redundancy

Data _______ ensures that the data contained in a database is accurate and reliable.

a) consistency
b) redundancy
c) efficiency
d) integrity

integrity

Data _______ helps to ensure data integrity by maintaining information in only one place.

a) centralization
b) flexibility
c) redundancy
d) mapping

centralization

21 in a database, the term _______ is synonymous with a category of information.

a) record
b) table
c) row
d) field

field

In a database, a group of related records is referred to as a(n) _______.

a) memo
b) object
c) field
d) table

table

In a Microsoft Access database, the Gettysburg Address would be stored in a(n) _______ field.

a) text
b) short text
c) long text
d) object

long text

You can set a _______, which is automatically displayed in a field unless the user enters something different.

a) field type
b) default value
c) numeric check
d) relation

default value

Which of the following is NOT a likely primary key?

a) Driver’s license number
b) Social Security number
c) Date of birth
d) Student ID number

Date of birth

_______ is used to ensure that data is organized more efficiently.

a) Range checking
b) Normalization
c) Validation
d) Consistency checking

Normalization

_______ databases are the most frequently used electronic databases.

a) Multidimensional
b) Flat-file
c) Object-oriented
d) Relational

Relational

A _______ relationship indicates that for each record in a table, there is only a single corresponding record in a related table.

a) many-to-many
b) one-to-one
c) many-to-one
d) one-to-many

one-to-one

_______ means that for each value in the foreign key of one table, there is a corresponding value in the primary key of another table.

a) Database consistency
b) Record integrity
c) Normalization
d) Referential integrity

Referential integrity

Nontraditional data such as audio clips, video clips, pictures, and very large documents are called _______ data.

a) enterprise
b) unstructured
c) multidimensional
d) structured

unstructured

Data in a multidimensional database is organized in a _______ format.

a) cube
b) linear
d) modular
c) cellular

cube

A _______ check would be used to restrict the fines for speeding violations from $50 to $250.

a) completeness
b) range
c) consistency
d) numeric

range

A(n) _______ check determines whether a required field such as LastName was filled in

a) consistency
b) completeness
c) range
d) alphabetic

completeness

A _______ check compares the values of data in two or more fields to see whether those values are reasonable.

a) correctness
b) numeric
c) consistency
d) range

consistency

You would use a _______ to temporarily display records of residents of the city of Boston.

a) sieve
b) validation rule
c) filter
d) field constraint

filter

A(n) _______ is a way of retrieving information from one or more tables that defines a particular subset of data.

a) query
b) enquiry
c) validation rule
d) field constraint

query

A _______ displays a subset of data from a table (or tables) based on the specified criteria

a) join query
b) table query
c) select query
d) criteria query

select query

SQL uses _______ to extract records from a database by using English-like expressions that have variables and operations.

a) relational algebra
b) primary keys
c) Boolean algebra
d) foreign keys

relational algebra

_______ involves putting data into an electronic file in a format that another application can recognize.

a) Enhancing
b) Extracting
c) Exporting
d) Importing

Exporting

A data _______ is a large-scare electronic repository of data that contains and organizes all of an organization’s data in one place.

a) mart
b) storehouse
c) chain
d) warehouse

warehouse

Data staging consists of all of the following steps EXCEPT _______

a) extracting the data
b) transforming the data
c) mining the data
d) storing the data in a warehouse

mining the data

A(n) _______ is designed to improve communications and help employees complete their routine tasks.

a) office support system (OSS)
b) decision support system (DSS)
c) transaction-processing system (TPS)
d) management information system (MIS

office support system (OSS)

In a transaction-processing system (TPS), if the TPS database can be queried and updated while the transaction is taking place, this is called ________ processing.

a) real-time
b) immediate
c) direct
d) batch

real-time

Management information systems (MIS) provide reports called _______ reports, which show conditions that are unusual or need attention from users of the system.

a) exception
b) expert
c) summary
d) detail

exception

The Siri personal assistant application on Apple’s iPhone 5s in an example of a _______.

a) management information system (MIS
b) database management system (DBMS)
c) natural language processing (NLP) system
d) decision support system (DSS)

natural language processing (NLP) system

_______ is the branch of computer science that attempts to create computers that think like humans.

a) Natural language processing
b) Enterprise resource planning
c) Artificial intelligence
d) Expert systems

Artificial intelligence