OMIS Exam 3 Review

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. State b. Day c. Airport code d. Address e. City

Airport code

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? a. Web server software b. Application server software c. Data mining software d. Database server software e. Web browser software

Application server software

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? a. Associations b. Classifications c. Forecasting d. Clustering e. Sequences

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? a. Identify clusters b. Identify sequences c. Identify associations d. Create a forecast e. Classify data

Classify data

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 inconsistency b. Data normalization c. Data duplication d. Data redundancy e. Data accuracy

Data inconsistency

Which of the following occurs when the same attribute in related data files has different values? a. Data inconsistency b. Data duplication c. Data redundancy d. Data dependence e. Data discrepancy

Data inconsistency

________ creates confusion that hampers the creation of information systems that integrate data from different sources. a. Batch processing b. Online processing c. Data redundancy d. Data independence e. Data quality

Data redundancy

In a large organization, which of the following functions would be responsible for physical database design and maintenance? a. Information policy administration b. Database management c. Data administration d. Data auditing e. Database administration

Database administration

n data mining, which of the following involves using a series of existing values to determine what other future values will be? a. Associations b. Forecasting c. Classifications d. Clustering e. Sequences

Forecasting

Which of the following technologies would you use to analyze the social media data collected by a major online retailer? a. Data warehouse b. OLAP c. Hadoop d. DBMS e. Data mart

Hadoop

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? a. Identify clusters b. Create a forecast c. Classify data d. Identify associations e. Identify sequences

Identify sequences

Which of the following is not one of the benefits of a blockchain database? a. It allows administrators to manage data more effectively. b. It enables firms to create and verify translations on a network very rapidly. c. It provides users with an integrated view of the data. d. It prevents data from being altered retroactively. e. It enables the ability to use relational databases.

It enables firms to create and verify translations on a network very rapidly.

Which of the following is the most prominent data manipulation language today? a. Crystal Reports b. DB2 c. Access d. SQL e. NoSQL

SQL

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? a. Data governance software b. Sentiment analysis software c. Web mining technologies d. Data mining software e. Text mining tools

Sentiment analysis software

In data mining, which of the following involves events linked over time? a. Classifications b. Forecasting c. Sequences d. Associations e. Clustering

Sequences

Which of the following is not one of the techniques used in web mining? a. Content mining b. Structure mining c. Data mining d. Usage mining e. Server mining

Server mining

________ tools are used to analyze large unstructured data sets, such as email, memos, and survey responses to discover patterns and relationships. a. Text mining b. In-memory c. Classification d. OLAP e. Clustering

Text mining

Which of the following best illustrates the relationship between entities and attributes? a. The entity CUSTOMER with the attribute PURCHASE b. The entity PRODUCT with the attribute CUSTOMER c. The entity PRODUCT with the attribute PURCHASE d. The entity CUSTOMER with the attribute PRODUCT e. The entity PURCHASE with the attribute CUSTOMER

The entity CUSTOMER with the attribute PURCHASE

Which of the following would you use to find patterns in user interaction data recorded by a web server? a. Web server mining b. Web structure mining c. Web usage mining d. Web content mining e. Web protocol mining

Web usage mining

A one-to-many relationship between two entities is symbolized in a diagram by a line that ends with: a. one short mark. b. three short marks. c. two short marks. d. a crow's foot. e. a crow's foot topped by a short mark.

a crow's foot topped by a short mark

A characteristic or quality that describes a particular database entity is called a: a. attribute. b. relationship. c. tuple. d. key field. e. field.

attribute

All of the following are technologies used to analyze and manage big data except: a. noSQL. b. Hadoop. c. cloud computing. d. in-memory computing. e. analytic platforms.

cloud computing

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. data from Web traffic. d. data created by social media (i.e. tweets, Facebook Likes). e. machine-generated data (i.e. from sensors).

datasets with fewer than a billion records

A schematic of the entire database that describes the relationships in a database is called a: a. intersection relationship diagram. b. entity-relationship diagram. c. data definition diagram. d. data dictionary. e. data analysis table.

entity-relationship diagram

All of the following are issues with the traditional file environment except: a. lack of flexibility in creating ad-hoc reports. b. data sharing. c. data inconsistency. d. poor security. e. inability to develop specialized applications for functional areas.

inability to develop specialized applications for functional areas

A field identified in a record as holding the unique identifier for that record is called the: a. unique ID. b. primary field. c. key field. d. key attribute. e. primary key.

key field

A field identified in a table as holding the unique identifier of the table's records is called the: a. primary key. b. primary field. c. key field. d. unique ID. e. primary entity.

primary key

A database ________ describes a database entity. a. field b. value c. byte d. file e. record

record

In a relational database, the three basic operations used to develop useful sets of data are: a. select, project, and join. b. where, from, and join. c. select, project, and where. d. where, find, and select. e. select, join, and where.

select, project, and join

A data lake is composed of: a. unstructured and structured data that has not been analyzed. b. historic external data. c. internal and external data sources. d. historic and current internal data. e. historical data from legacy systems.

unstructured and structured data that has not been analyzed