MIS 6

Which of the following enables a DBMS to reduce data redundancy and inconsistency?

Ability to minimize isolated files with repeated data

A one-to-many relationship between two entities is symbolized in a diagram by a line that ends with:

A crow's foot topped by a short mark

Microsoft SQL Server is a

DBMS for midrange computers.

​________ is the most popular NoSQL DBMS.

Hadoop

​Microsoft's most powerful DBMS is​ ________.

SQL server

A ________ is an example of pre-digital data storage that is comparable to a database.

library card catalog

A one-to-one relationship between two entities is symbolized in a diagram by a line that ends:

in two short marks

​Microsoft's DBMS that includes​ built-in report generation and reporting is called​ ________.

Access

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?

Airport Code

Amazon is one of the first to provide cloud computing relational databases. This effort is called​ ________.

Amazon Relational Database

Which of the following enables you to create a script that allows a web server to communicate with a back-end database?

CGI

For​ DBMS's that do NOT include a reports​ generator, ________ is a popular option for large corporate DBMS.

Crystal Reports

Which of the following technologies would you use to analyze the social media data collected by a major online retailer?

Hadoop

SQL stands for​ ________.

Structured Query Language

________ tools are used to analyze large unstructured data sets, such as e-mail, memos, and survey responses to discover patterns and relationships.

Text mining

Which of the following best illustrates the relationship between entities and attributes?

The entity CUSTOMER with the attribute PURCHASE

According to the information presented in this​ video, a database management system​ (DBMS) is a software program for​ creating, processing, and​ _____ a database.

administering

Which of the following is an automated or manual file that stores information about data elements and data characteristics such as usage, physical representation, ownership, authorization, and security?

data dictionary

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?

data inconsistency

________ creates confusion that hampers the creation of information systems that integrate data from different sources.

data redundancy

Detecting and correcting data in a database or file that are incorrect, incomplete, improperly formatted, or redundant is called:

data scrubbing

Data​ cleansing, working to identify and fix incorrect​ data, is also called​ ________.

data srubbing

According to the information presented in this​ video, a spreadsheet is great to manage information about one thing​ (e.g., items for​ sale), but a​ _____ is preferred to manage information about more than one thing​ (e.g., items for sale and suppliers of​ items).

database

The term big data refers to all of the following except:

datasets with fewer than a billion records

In this​ video, Jack explains how metadata​ _____.

describe characteristics of each field

DBMSs typically include report generating tools in order to:

display data in an easier-to-read format

A schematic of the entire database that describes the relationships in a database is called a(n):

entity-relationship diagram

A​ ________ is a component in the computer system data hierarchy that includes content such as Student ID​ 100, Course IS​ 101, and Grade A.

field

Which of the following is a grouping of characters into a word, a group of words, or a complete number?

field

A​ ________ is a component in the computer system data hierarchy consists of multiple records of the same type.

file

A​ ________ provides the link from one table to another​ table's primary key.

foreign key

A data warehouse is composed of:

historic and current internal data

You work for a retail clothing chain whose primary outlets are in shopping malls and 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 the data mining software you are using to do which of the following?

identify sequences

All of the following are issues with the traditional file environment except:

inability to develop specialized applications for functional areas.

An organization's rules for sharing, disseminating, acquiring, standardizing, classifying, and inventorying information is called a(n):

information policy

​A(n) ________ is an important resource for an organization to​ create, illustrating rules on how data is organized and who has access to what data.

information policy

As Jack explains to​ Kate, a database is a collection of​ _____ records.

integrated

A field identified in a record as holding the unique identifier for that record is called the:

key field

Which of the following is a DBMS for desktop computers?

microsoft access

The formal process to remove data problems such as repeating groups is called​ ________.

normalization

The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called:

normalization

In the context of data relationships, the term associations refers to:

occurrences linked to a single event.

Although​ "Big Data"​ doesn't refer to a specific amount of​ data, it usually does involve​ ________.

petabytes

A DBMS makes the

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:

primary key

Another term for a key field is a​ ________.

primary key

The field that uniquely identifies a row in a relational database table is called a​ ________.

primary key

Another term for a database row is​ a(n) ________.

record

Data ________ occurs when the same data is duplicated in multiple files of a database.

redundancy

According to​ Jack's explanation of the structure of relational database​ tables, which of the following statements about columns and rows is​ true?

Each row is a unique record for one of the items in the table and each column is an attribute of the item.

In a large organization, which of the following functions would be responsible for physical database design and maintenance?

database administration

The SQL​ ________ statement allows you to combine two different tables.

JOIN

​_________ is a widely used open source DBMS.

MySQL

An emerging​ non-relational database management system is called​ ________.

NoSQL

MongoDB and SimpleDB are both examples of:

NoSQL databases

Which of the following tools enables users to view the same data in different ways using multiple dimensions?

OLAP

Which of the following is software that handles all application operations between browser-based computers and a company's back-end business applications or databases?

application server software

A characteristic or quality that describes a particular database entity is called a(n):

attribute

Another name for a database field is​ a(n) ________.

attribute

A​ ________ is the smallest component in the computer system data hierarchy.

bit

A​ ________ is a component in the computer system data hierarchy that represents an ASCII character.

byte

In 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?

classifications

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?

classify data

All of the following are technologies used to analyze and manage big data except:

cloud computing

The select operation:

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

The project operation

creates a subset consisting of columns in a table.

​A(n) ________ is a collection of data organized to serve many applications efficiently.

database

Software that allows an organization to manage and provide access to data is a​ ________.

database management system

In data mining, which of the following involves using a series of existing values to determine what other future values will be?

forecasting

Which of the following occurs when the same attribute in related data files has different values?

data inconsistency

In a table for customers, the information about a single customer resides in a single:

row

In a relational database, the three basic operations used to develop useful sets of data are:

select, project, and join

A household appliances manufacturer has hired you to help analyze its social media datasets to determine which of its refrigerators are seen as the most reliable. Which of the following tools would you use to analyze this data?

sentiment analysis software

In data mining, which of the following involves events linked over time?

sequences

Which of the following is not one of the techniques used in web mining?

server mining

Which of the following is not a method for performing a data quality audit?

surveying data definition and query files

In a relational database, a record is referred to in technical terms as a(n):

tuple

OLAP enables

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

Which of the following would you use to find patterns in user interaction data recorded by a web server?

web usage mining

​A(n) ________ is the most popular method to model a database.

​entity-relationship (ER) model