wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Midterm Exam - Data Mining

Total questions: 63

Worksheet time: 32mins

Name
Class
Date
1.

The process of extracting information to identify patterns, trends, and useful data that would allow the business to take the data-driven decision from huge sets of data.

a)

Data Mining

b)

Relational Database

c)

Data warehouses

d)

Data Repositories

2.

A collection of multiple data sets formally organized by tables, records, and columns from which data can be accessed in various ways without having to recognize the database tables. Tables convey and share information, which facilitates data searchability, reporting, and organization

a)

Data Mining

b)

Relational Database

c)

Data warehouses

d)

Data Repositories

3.

Technology that collects the data from various sources within the organization to provide meaningful business insights.

a)

Data Mining

b)

Relational Database

c)

Data warehouses

d)

Data Repositories

4.

Generally refers to a destination for data storage. However, many IT professionals utilize the term more clearly to refer to a specific kind of setup within an IT structure.

a)

Data Mining

b)

Relational Database

c)

Data warehouses

d)

Data Repositories

5.

A combination of an object-oriented database model and relational database model. It supports Classes, Objects, Inheritance, etc.

a)

Object-Relational Database

b)

Transactional Database

c)

Data warehouses

d)

Data Repositories

6.

Refers to a database management system (DBMS) that has the potential to undo a database transaction if it is not performed appropriately.

a)

Object-Relational Database

b)

Transactional Database

c)

Data warehouses

d)

Data Repositories

7.

Data Mining disadvantage is enables organizations to obtain knowledge-based data.

a)

True

b)

False

8.

Data Mining disadvantage is enables organizations to make lucrative modifications in operation and production.

a)

True

b)

False

9.

Data Mining disadvantage data mining is a cost-efficient.

a)

True

b)

False

10.

Data Mining disadvantage helps the decision-making process of an organization.

a)

True

b)

False

11.

Data Mining disadvantage facilitates the automated discovery of hidden patterns as well as the prediction of trends and behaviors.

a)

True

b)

False

12.

Data Mining disadvantage it can be induced in the new system as well as the existing platforms.

a)

True

b)

False

13.

Data Mining disadvantage quick process that makes it easy for new users to analyze enormous amounts of data in a short time.

a)

True

b)

False

14.

Data Mining advantage probability that the organizations may sell useful data of customers to other organizations for money. As per the report, American Express has sold credit card purchases of their customers to other organizations.

a)

True

b)

False

15.

Data Mining advantage many data mining analytics software is difficult to operate and needs advance training to work on.

a)

True

b)

False

16.

Data Mining advantage different data mining instruments operate in distinct ways due to the different algorithms used in their design. Therefore, the selection of the right data mining tools is a very challenging task.

a)

True

b)

False

17.

Data Mining advantage techniques are not precise, so that it may lead to severe consequences in certain conditions.

a)

True

b)

False

18.

Excellent potential to improve the health system. It uses data and analytics for better insights and to identify best practices that will enhance health care services and reduce costs.

a)

Data Mining in Health Care

b)

Data Mining in Market Basket Analysis

c)

Data mining in Education

d)

Data Mining in Manufacturing Engineering

19.

Analysis is a modeling method based on a hypothesis. If you buy a specific group of products, then you are more likely to buy another group of products.

a)

Data Mining in Health Care

b)

Data Mining in Market Basket Analysis

c)

Data mining in Education

d)

Data Mining in Manufacturing Engineering

20.

Is a newly emerging field, concerned with developing techniques that explore knowledge from the data generated from educational Environments.

a)

Data Mining in Health Care

b)

Data Mining in Market Basket Analysis

c)

Data mining in Education

d)

Data Mining in Manufacturing Engineering

21.

Knowledge is the best asset possessed by a manufacturing company. Data mining tools can be beneficial to find patterns in a complex manufacturing process.

a)

Data Mining in Health Care

b)

Data Mining in Market Basket Analysis

c)

Data mining in Education

d)

Data Mining in Manufacturing Engineering

22.

Is all about obtaining and holding Customers, also enhancing customer loyalty and implementing customer-oriented strategies.

a)

Data Mining in CRM (Customer Relationship Management)

b)

Data Mining in Fraud detection

c)

Data Mining in Lie Detection

d)

Data Mining Financial Banking

23.

Billions of dollars are lost to the action of frauds. Traditional methods of fraud detection are a little bit time consuming and sophisticated.

a)

Data Mining in CRM (Customer Relationship Management)

b)

Data Mining in Fraud detection

c)

Data Mining in Lie Detection

d)

Data Mining Financial Banking

24.

Apprehending a criminal is not a big deal, but bringing out the truth from him is a very challenging task.

a)

Data Mining in CRM (Customer Relationship Management)

b)

Data Mining in Fraud detection

c)

Data Mining in Lie Detection

d)

Data Mining Financial Banking

25.

The Digitalization of the banking system is supposed to generate an enormous amount of data with every new transaction.

a)

Data Mining in CRM (Customer Relationship Management)

b)

Data Mining in Fraud detection

c)

Data Mining in Lie Detection

d)

Data Mining Financial Banking

26.

The process of extracting useful data from large volumes of data is data mining. The data in the real-world is heterogeneous, incomplete, and noisy.

a)

Incomplete and Noisy Data

b)

Data Distribution

c)

Complex Data

d)

Performance

27.

Real-worlds data is usually stored on various platforms in a distributed computing environment. It might be in a database, individual systems, or even on the internet.

a)

Incomplete and Noisy Data

b)

Data Distribution

c)

Complex Data

d)

Performance

28.

Real-world data is heterogeneous, and it could be multimedia data, including audio and video, images, complex data, spatial data, time series, and so on.

a)

Incomplete and Noisy Data

b)

Data Distribution

c)

Complex Data

d)

Performance

29.

The data mining system's performance relies primarily on the efficiency of algorithms and techniques used.

a)

Incomplete and Noisy Data

b)

Data Distribution

c)

Complex Data

d)

Performance

30.

Data mining usually leads to serious issues in terms of data security, governance, and privacy.

a)

Data Privacy and Security

b)

Data Distribution

c)

Complex Data

d)

Performance

31.

Bonus: How many dwarfs cinderella have?​

(a)  

32.

Division of information into groups of connected objects. Describing the data by a few clusters mainly loses certain confine details, but accomplishes improvement.

a)

Classification

b)

Clustering

c)

Regression

d)

Association Rules

33.

A division of information into groups of connected objects. Describing the data by a few clusters mainly loses certain confine details, but accomplishes improvement.

a)

Classification

b)

Clustering

c)

Regression

d)

Association Rules

34.

Helps to discover a link between two or more items. It finds a hidden pattern in the data set.

a)

Classification

b)

Clustering

c)

Regression

d)

Association Rules

35.

Relates to the observation of data items in the data set, which do not match an expected pattern or expected behavior.

a)

Outer detection

b)

Sequential Patterns

c)

Prediction

d)

Association Rules

36.

Specialized for evaluating sequential data to discover sequential patterns.

a)

Outer detection

b)

Sequential Patterns

c)

Prediction

d)

Association Rules

37.

Used a combination of other data mining techniques such as trends, clustering, classification, etc.

a)

Outer detection

b)

Sequential Patterns

c)

Prediction

d)

Association Rules

38.

This classification is as per the type of data handled. For example, multimedia, spatial data, text data, time-series data, World Wide Web

a)

Classification of Data mining frameworks as per the type of data sources mined

b)

Classification of data mining frameworks as per the database involved

c)

Classification of data mining frameworks as per the kind of knowledge discovered

d)

Classification of data mining frameworks according to data mining techniques used

39.

This classification based on the data model involved. For example. Object-oriented database, transactional database, relational database, and so on

a)

Classification of Data mining frameworks as per the type of data sources mined

b)

Classification of data mining frameworks as per the database involved

c)

Classification of data mining frameworks as per the kind of knowledge discovered

d)

Classification of data mining frameworks according to data mining techniques used

40.

This classification depends on the types of knowledge discovered or data mining functionalities. For example, discrimination, classification, clustering, characterization, etc. some frameworks tend to be extensive frameworks offering a few data mining functionalities together

a)

Classification of Data mining frameworks as per the type of data sources mined

b)

Classification of data mining frameworks as per the database involved

c)

Classification of data mining frameworks as per the kind of knowledge discovered

d)

Classification of data mining frameworks according to data mining techniques used

41.

This classification is as per the data analysis approach utilized, such as neural networks, machine learning, genetic algorithms, visualization, statistics, data warehouse-oriented or database-oriented, etc.

a)

Classification of Data mining frameworks as per the type of data sources mined

b)

Classification of data mining frameworks as per the database involved

c)

Classification of data mining frameworks as per the kind of knowledge discovered

d)

Classification of data mining frameworks according to data mining techniques used

42.

Focuses on understanding the project goals and requirements form a business point of view, then converting this information into a data mining problem afterward a preliminary plan designed to accomplish the target.

a)

Business Understanding

b)

Data Understanding

c)

Data Preparation

d)

Modeling

43.

Starts with an original data collection and proceeds with operations to get familiar with the data, to data quality issues, to find better insight in data, or to detect interesting subsets for concealed information hypothesis.

a)

Business Understanding

b)

Data Understanding

c)

Data Preparation

d)

Modeling

44.

Usually takes more than 90 percent of the time. It covers all operations to build the final data set from the original raw information. Data preparation is probable to be done several times and not in any prescribed order.

a)

Business Understanding

b)

Data Understanding

c)

Data Preparation

d)

Modeling

45.

Various modeling methods are selected and applied, and their parameters are measured to optimum values. Some methods gave particular requirements on the form of data. Therefore, stepping back to the data preparation phase is necessary.

a)

Business Understanding

b)

Data Understanding

c)

Data Preparation

d)

Modeling

46.

Refers to the decision on the use of the data mining results should be reached

a)

Evaluation

b)

Deployment

c)

Data Preparation

d)

Modeling

47.

Refers to how the outcomes need to be utilized

a)

Evaluation

b)

Deployment

c)

Data Preparation

d)

Modeling

48.

Is the Database, data warehouse, World Wide Web (WWW), text files, and other documents. You need a huge amount of historical data for data mining to be successful.

a)

Data Source

b)

Different Processes

c)

Database or Data Warehouse Server

d)

Data Mining Engine

49.

Is the Database, data warehouse, World Wide Web (WWW), text files, and other documents. You need a huge amount of historical data for data mining to be successful.

a)

Data Source

b)

Different Processes

c)

Database or Data Warehouse Server

d)

Data Mining Engine

50.

Consists of the original data that is ready to be processed.

a)

Data Source

b)

Different Processes

c)

Database or Data Warehouse Server

d)

Data Mining Engine

51.

Is a major component of any data mining system. It contains several modules for operating data mining tasks, including association, characterization, classification, clustering, prediction, time-series analysis, etc.

a)

Data Source

b)

Different Processes

c)

Database or Data Warehouse Server

d)

Data Mining Engine

52.

Module is primarily responsible for the measure of investigation of the pattern by using a threshold value. It collaborates with the data mining engine to focus the search on exciting patterns.

a)

Pattern Evaluation Module

b)

Graphical User Interface

c)

Knowledge Base

d)

Knowledge Discovery in Databases

53.

Module communicates between the data mining system and the user.

a)

Pattern Evaluation Module

b)

Graphical User Interface

c)

Knowledge Base

d)

Knowledge Discovery in Databases

54.

Is helpful in the entire process of data mining. It might be helpful to guide the search or evaluate the stake of the result patterns.

a)

Pattern Evaluation Module

b)

Graphical User Interface

c)

Knowledge Base

d)

Knowledge Discovery in Databases

55.

It refers to the broad procedure of discovering knowledge in data and emphasizes the high-level applications of specific Data Mining techniques.

a)

Pattern Evaluation Module

b)

Graphical User Interface

c)

Knowledge Base

d)

Knowledge Discovery in Databases

56.

This is the initial preliminary step. It develops the scene for understanding what should be done with the various decisions like transformation, algorithms, representation, etc.

a)

Building up an understanding of the application domain

b)

Choosing and creating a data set on which discovery will be performed

c)

Preprocessing and cleansing

d)

Data Transformation

57.

Once defined the objectives, the data that will be utilized for the knowledge discovery process should be determined. This incorporates discovering what data is accessible, obtaining important data, and afterward integrating all the data for knowledge discovery onto one set involves the qualities that will be considered for the process.

a)

Building up an understanding of the application domain

b)

Choosing and creating a data set on which discovery will be performed

c)

Preprocessing and cleansing

d)

Data Transformation

58.

In this step, data reliability is improved. It incorporates data clearing, for example, Handling the missing quantities and removal of noise or outliers.

a)

Building up an understanding of the application domain

b)

Choosing and creating a data set on which discovery will be performed

c)

Preprocessing and cleansing

d)

Data Transformation

59.

In this stage, the creation of appropriate data for Data Mining is prepared and developed. Techniques here incorporate dimension reduction, also attribute transformation.

a)

Building up an understanding of the application domain

b)

Choosing and creating a data set on which discovery will be performed

c)

Preprocessing and cleansing

d)

Data Transformation

60.

To decide on which kind of Data Mining to use, for example, classification, regression, clustering, etc. This mainly relies on the KDD objectives, and also on the previous steps.

a)

Prediction and description

b)

Selecting the Data Mining algorithm

c)

Utilizing the Data Mining algorithm

d)

Evaluation

61.

Having the technique, we now decide on the strategies. This stage incorporates choosing a particular technique to be used for searching patterns that include multiple inducers.

a)

Prediction and description

b)

Selecting the Data Mining algorithm

c)

Utilizing the Data Mining algorithm

d)

Evaluation

62.

Implementation of the Data Mining algorithm is reached.

a)

Prediction and description

b)

Selecting the Data Mining algorithm

c)

Utilizing the Data Mining algorithm

d)

Evaluation

63.

In this step, we assess and interpret the mined patterns, rules, and reliability to the objective characterized in the first step.

a)

Prediction and description

b)

Selecting the Data Mining algorithm

c)

Utilizing the Data Mining algorithm

d)

Evaluation