ITC Exam 2 Chapter 6

Associations are occurrences linked to multiple events A) True B) False

B) False

CGI is a DBMS programming language that end users and programmers use to manipulate data in the database A) True B) False

B) False

Data scrubbing is a more intensive corrective process than data cleansing A) True B) False

B) False

Implementing a web interface for an organization's internal database usually requires substantial changes to be made to the database A) True B) False

B) False

In a client/server environment, a DBMS is located on a dedicated computer called a web server A) True B) False

B) False

In-memory computing relies primarily on a computer's disk drives for data storage A) True B) False

B) False

NoSQL technologies are used to manage sets of data that don't require the flexibility of tables and relations A) True B) False

B) False

Relational DBMSs use key field rules to ensure that relationships between coupled tables remain consistent A) True B) False

B) False

The logical and physical views of data are separated in a DBMS A) True B) False

B) False

The fact that a traditional file system cannot respond to unanticipated information requirements in a timely fashion is an example of which of the following issues with traditional file systems? A) Program-data dependence B) Lack of flexibility C) Poor security D) Lack of data sharing E) Data redundancy

B) Lack of flexibility

Which of the following best illustrates the relationship between entities and attributes? A) The entity CUSTOMER with the attribute PRODUCT B) The entity CUSTOMER with the attribute PURCHASE C) The entity PRODUCT with the attribute PURCHASE D) The entity PRODUCT with the attribute CUSTOMER E) The entity PURCHASE with the attribute CUSTOMER

B) The entity CUSTOMER with the attribute PURCHASE

Which of the following is software that handles all apps operations between browser-based computers and a company's back-end business apps or databases? A) database server software B) app server software C) web browser software D) data mining software E) web server software

B) app server software

The project operation: A) combines relational tables to provide the user with more info than is otherwise available B) creates a subset consisting of columns in a table C) organizes elements into segments D) identifies the table from which the columns will be selected E) creates a subset consisting of rows in a table

B) creates a subset consisting of columns in a table

Which of the following is a specialized language that programmers use to add and change data in the database? A) data access language B) data manipulation language C) structure query language D) data definition language E) DBMS

B) data manipulation language

________ creates confusion that hampers the creation of information systems that integrate data from different sources A) Batch processing B) Data redundancy C) Data independence D) Online processing E) Data quality

B) data redundancy

In a large organization, which of the following functions would be responsible for physical database design and maintenance? A) data admin B) database admin C) info policy admin D) data auditing E) database management

B) database admin

DBMSs typically include report generating tools in order to A) retrieve and display data B) display data in a more structured and polished format than would be possible just by querying C) display data in graphs D) perform predictive analysis E) analyze the database's performance

B) display data in a more structured and polished format than would be possible just by querying

Data mining allows users to: A) quickly compare transaction data gathered over many years B) find hidden relationships in data C) obtain online answers to ad-hoc questions in a rapid amount of time D) summarize massive amounts of data into much smaller, traditional reports E) access the vast amounts of data in a data warehouse

B) find hidden relationships in data

All of the following are issues with the traditional file environment except: A) data inconsistency B) inability to develop specialized apps for functional areas C) lack of flexibility in creating ad-hoc reports D) poor security E) data sharing

B) inability to develop specialized apps for functional areas

A field identified in a record as holding the unique identifier for that record is called the: A) primary key B) key field C) primary field D) unique ID E) key attribute

B) key field

In a table for customers, the information about a single customer would reside in a single: A) field B) row C) column D) table E) entity

B) row

A household appliances manufacturer has hired you to help analyze its social media datasets to determine which of its fridges are seen as the most reliable. Which of the following tools would you use to analyze this data? A) text mining tools B) sentiment analysis software C) web mining technologies D) data mining software E) data governance software

B) sentiment analysis software

In data mining, which of the following involves events linked over time? A) associations B) sequences C) classifications D) clustering E) forecasting

B) sequences

______ tools are used to analyze large unstructured data sets, such as email, memos, and survey responses to discover patterns and relationships A) OLAP B) text mining C) in-memory D) clustering E) classification

B) text mining

A data lake is composed of A) historical data from legacy systems B) unstructured and structured data that has not been analyzed C) internal and external data sources D) historic and current internal data E) historic external data

B) unstructured and structured data that has not been analyzed

Which of the following is the most prominent data manipulation language today? A) Access B) DB2 C) SQL D) Crystal Reports E) NoSQL

C) SQL

You are creating a database to store temperature and wind data from various airports. Which of the following fields is the most likely candidate to use as the basis for a primary key in the Airport table? A) address B) city C) airport code D) state E) day

C) airport code

In a data mining, which of the following involves recognizing patterns that describe the group to which an item belongs by examining existing items and inferring a set of rules? A) associations B) sequences C) classifications D) clustering E) forecasting

C) classifications

Detecting and correcting data in a database or file that are incorrect, incomplete, improperly formatted, or redundant is called: A) data auditing B) defragmentation C) data scrubbing D) data optimization E) data normalization

C) data scrubbing

A schematic of the entire database that describes the relationships in a database is called a(n): A) data dictionary B) intersection relationship diagram C) entity-relationship diagram D) data definition diagram E) data analysis table

C) entity-relationship diagram

You work for a retail clothing chain whose primary outlets are in shopping malls, and you are conducting an analysis of your customers and their preferences. You wish to find out if there are any particular activities that your customers engage in, or the types of purchases made in the month before or after purchasing select items from your store. To do this, you will want to use data mining software you are using to do which of the following? A) identify associations B) identify clusters C) identify sequences D) classify data E) create a forecast

C) identify sequences

A distributed database: A) uses predictive analysis B) uses sQL C) is a database that is stored in multiple physical locations D) is a database that is distributed across many business firms E) uses Hadoop to process information

C) is a database that is stored in multiple physical locations

MongoDB and SimpleDB are both examples of A) open source databases B) SQL databases C) noSQL databases D) cloud databases E) big data databases

C) noSQL databases

In the context of data relationships, the term associates refers to A) events linked over time B) patterns that describe a group to which an item belongs C) occurrences linked to a single event D) undiscovered groupings E) relationships between different customers

C) occurrences linked to a single event

A database ______ describes a database entity A) byte B) field C) record D) value E) file

C) record

A(n) ______ represent data as two-dimensional tables A) non-relational DBMS B) mobile DBMS C) relational DBMS D) hierarchical DBMS E) object-oriented DBMS

C) relational DBMS

In a relational database, the three basic operations used to develop useful sets of data are: A) select, project and where B) select, join and where C) select, project and join D) where, from and join E) where, find and select

C) select, project and join

Which of the following is not one of the techniques used in web mining? A) content mining B) structure mining C) server mining D) usage mining E) data mining

C) server mining

Which of the following is not a method for performing a data quality audit? A) surveying entire data files B) surveying samples from data files C) surveying data definition and query files D) surveying end users about their perceptions of data quality E) surveying managers about their perceptions of data quality

C) surveying data definition and query files

Which of the following enables a DBMS to reduce data redundancy and inconsistency? A) Ability to enforce referential integrity B) Ability to couple program and data C) Use of a data dictionary D) Ability to create two-dimensional tables E) Ability to minimize isolated files with repeated data

E) Ability to minimize isolated files with repeated data

Which of the following occurs when the same attribute in related data files has different values? A) Data redundancy B) Data duplication C) Data dependence D) Data discrepancy E) Data inconsistency

E) Data inconsistency

A one-to-many relationship between two entities is symbolized in a diagram by a line that ends: A) one short mark B) two short marks C) three short marks D) a crow's foot E) a crow's foot topped by a short mark

E) a crow's foot topped by a short mark

Data cleansing not only corrects errors but also A) establishes logical relationships between data B) structures data C) normalizes data D) removes duplicate data E) enforces consistency among different sets of data

E) enforces consistency among different sets of data

In data mining, which of the following involves using a series of existing values to determine what other future values will be? A) associations B) sequences C) classifications D) clustering E) forecasting

E) forecasting

The logical view of a database: A) displays the organization and structure of data on the physical storage media B) includes a digital dashboard C) allows the creation of supplementary reports D) enables users to manipulate the logical structure of the database E) presents data as they would be perceived by end users

E) presents data as they would be perceived by end users

Microsoft Access's data dictionary displays all of the following info about a field except the: A) size B) format C) description D) type E) the organization within the organization that is responsible for maintaining the data

E) the organization within the organization that is responsible for maintaining the data

All of the following are technologies used to analyze and manage big data except: A) cloud computing B) noSQL C) in-memory computing D) analytic platforms E) Hadoop

A) cloud computing

The join operation: A) combines relational tables to provide the user with more info than is otherwise available B) identifies the table from which the columns will be selected C) creates a subset consisting of columns in a table D) organizes elements into segments E) creates a subset consisting of rows in a table

A) combines relational tables to provide the user with more info than is otherwise available

In a large organization, which of the following functions would be responsible for policies and procedures for managing internal data resources? A) data admin B) database admin C) info policy admin D) data auditing E) database management

A) data admin

Which of the following is an automated or manual file that stores info about data elements and data characteristics such as usage, physical representation, ownership, authorization and security? A) data dictionary B) data definition diagram C) entity-relationship diagram D) relationship dictionary E) data table

A) data dictionary

The term big data refers to all of the following except A) datasets with fewer than a billion records B) datasets with unstructured data C) machine-generated data (i.e. from sensors) D) data created by social media (i.e. tweets, Facebook Likes) E) data from Web traffic

A) datasets with fewer than a billion records

An organization's rules for sharing, disseminating, acquiring, standardizing, classifying, and inventorying info is call a(n): A) info policy B) data definition file C) data quality audit D) data governance policy E) data policy

A) info policy

The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called: A) normalization B) data scrubbing C) data cleansing D) data defining E) optimization

A) normalization

A DBMS makes the: A) physical database available for different logical views B) relational database available for different logical views C) physical database available for different analytic views D) relational database available for different analytic views E) logical database available for different analytic views

A) physical database available for different logical views

A field identified in a table as holding the unique identifier of the table's records is called the: A) primary key B) key field C) primary field D) unique ID E) primary entity

A) primary key

Data ________ occurs when the same data is duplicated in multiple files of a database A) redundancy B) repetition C) independence D) partitions E) discrepancy

A) redundancy

In a relational database, a record is referred to in technical terms as a(n): A) tuple B) table C) entity D) field E) key

A) tuple

OLAP enables: A) users to obtain online answers to ad-hoc questions in a rapid amount of time B) users to view both logical and physical views of data C) programmers to quickly diagram data relationships D) programmers to normalize data E) users to quickly generate summary reports

A) users to obtain online answers to ad-hoc questions in a rapid amount of time

Which of the following would you use to find pattern in user interaction data recorded by a web server? A) web usage mining B) web server mining C) web structure mining D) web content mining E) web protocol mining

A) web usage mining

Spanner is an example of a distributed database A) True B) False

A) True

The term data governance refers to the policies and processes for managing the integrity and security of data in a firm A) True B) False

A) True

You can manipulate data on a web server by using a CGI script A) True B) False

A) True

You can use OLAP to perform multidimensional data analysis A) True B) False

A) True

You can use text mining tools to analyze unstructured data, such as memos and legal cases A) True B) False

A) True

Which of the following enables you to create a script that allows a web server to communicate with a back-end database? A) CGI B) HTML C) Java D) SQL E) NoSQL

A) CGI

A physical view shows data as it is organized on the storage media A) True B) False

A) True

A record is a group of related fields A) True B) False

A) True

Complicated groupings of data in a relational database need to be adjusted to eliminate awkward many-to-many relationships A) True B) False

A) True

DBMS have a data definition capability to specify the structure of the content of the database A) True B) False

A) True

Every record in a file should contain at least one key field A) True B) False

A) True

High-speed analytic platforms use both relational and non-relational tools to analyze large datasets A) True B) False

A) True

Legacy systems are used to populate and update data warehouses A) True B) False

A) True

Middleware is an application that transfers information from an organization's internal database to a web server for delivery to a user as part of a web page A) True B) False

A) True

OLAP can manage and handle queries with very large sets of data A) True B) False

A) True

Program-data dependence refers to the coupling of data stored in files and software programs that use this data such that changes in programs require changes to the data. A) True B) False

A) True

Microsoft SQL Server is a(n): A) DBMS for both desktops and mobile devices B) Internet DBMS C) desktop relational DBMS D) DBMS for midrange computers E) DBMS for mobile devices

D) DBMS for midrange computers

Which of the following is a grouping of characters into a word, a group of words, or a complete number? A) File B) Table C) Entity D) Field E) Tuple

D) Field

Which of the following technologies would you use to analyze the social media data collected by a major online retailer? A) OLAP B) data warehouse C) data mart D) Hadoop E) DBMS

D) Hadoop

Which of the following is a DBMS for desktop computers? A) DB2 B) Oracle Database C) Microsoft SQL Server D) Microsoft Access E) Microsoft Exchange

D) Microsoft Access

A characteristic or quality that describes a particular database entity is called a(n): A) field B) tuple C) key field D) attribute E) relationship

D) attribute

You work for a car rental agency and want to determine what characteristics are shared among your most loyal customers. To do this, you will want to use the data mining software you are using to do which of the following? A) identify associations B) identify clusters C) identify sequences D) classify data E) create a forecast

D) classify data

The select operation A) combines relational tables to provide the user with more information than is otherwise available B) creates a subset consisting of columns in a table C) identifies the table from which the columns will be selected D) creates a subset consisting of all records in the file that meet stated criteria E) creates a subset consisting of rows in a table

D) creates a subset consisting of all records in the file that meet stated criteria

Which common database challenge is illustrated by a person receiving multiple copies of an L.L. Bean catalog, each addressed to a slightly different variation of his or her full name? A) data normalization B) data accuracy C) data redundancy D) data inconsistency E) data duplication

D) data inconsistency

Which of the following is not one of the benefits of a blockchain database? A) it enables the ability to use relational databases B) it prevents data from being altered retroactively C) it allows administrators to manage data more effectively D) it enables firms to create and verify on a network very rapidly E) it provides users with an integrated view of the data

D) it enables firms to create and verify on a network very rapidly