Q41: Which of the following are descriptive data mining activities? Select one
Answer option
- A. Deviation detection
- B. Classification
- C. Clustering
- D. Regression
Answer
Answer D. Regression
Q42: In a data mining task where it is not clear what type of patterns could be interesting, the data mining system should Select one
Answer option
- A. allow interaction with the user to guide the mining process
- B. perform both descriptive and predictive tasks
- C. perform all possible data mining tasks
- D. handle different granularities of data and patterns
Answer
Answer D. handle different granularities of data and patterns
Q43: Correlation analysis is used for Select one
Answer option
- A. handling missing values
- B. identifying redundant attributes
- C. handling different data formats
- D. eliminating noise Show Answer
Answer
Answer C. handling different data formats
Q44: The number of item sets of cardinality 4 from the items lists {A, B, C, D, E} Select one
Answer option
- A. 2
- B. 10
- C. 20
- D. 5
Answer
Answer A. 2
Q45: Question text Which of the following is NOT a data quality related issue? Select one
Answer option
- A. Missing values
- B. Outlier records
- C. Duplicate records
- D. Attribute value range
Answer
Answer B. Outlier records
Q46: Which of the following activities is NOT a data mining task? Select one
Answer option
- A. Predicting the future stock price of a company using historical records
- B. Monitoring and predicting failures in a hydropower plant
- C. Extracting the frequencies of a sound wave
- D. Monitoring the heart rate of a patient for abnormalities
Answer
Answer C. Extracting the frequencies of a sound wave
Q47: Which data mining task can be used for predicting wind velocities as a function of temperature, humidity, air pressure, etc.? Select one
Answer option
- A. Cluster Analysis
- B. Regression
- C. Clasification
- D. Sequential pattern discovery
Answer
Answer B. Regression
Q48: In asymmetric attibute Select one
Answer option
- A. No value is considered important over other values
- B. All values are equals
- C. Only non-zero value is important
- D. Range of values is important
Answer
Answer C. Only non-zero value is important
Q49: Which is the right approach of Data Mining?
Answer option
- A. Infrastructure, exploration, analysis, interpretation, exploitation
- B. Infrastructure, exploration, analysis, exploitation, interpretation
- C. Infrastructure, analysis, exploration, interpretation, exploitation
- D. Infrastructure, analysis, exploration, exploitation, interpretation
Answer
Answer A. Infrastructure, exploration, analysis, interpretation, exploitation
Q50: Which of the following is not a data mining task? Select one
Answer option
- A. Feature Subset Detection
- B. Association Rule Discovery
- C. Regression
- D. Sequential Pattern Discovery
Answer
Answer A. Feature Subset Detection
Q51: Data independence means
Answer option
- A. Data is defined separately and not included in programs
- B. Programs are not dependent on the physical attributes of data
- C. Programs are not dependent on the logical attributes of data
- D. Both (B) and (C)
Answer
Answer D. Both (B) and (C)
Q52: E-R model uses this symbol to represent weak entity set?
Answer option
- A. Dotted rectangle
- B. Diamond
- C. Doubly outlined rectangle
- D. None of these
Answer
Answer C. Doubly outlined rectangle
Q53: SET concept is used in
Answer option
- A. Network Model
- B. Hierarchical Model
- C. Relational Model
- D. None of these
Answer
Answer D. None of these
Q54: Relational Algebra is
Answer option
- A. Data Definition Language
- B. Meta Language
- C. Procedural query Language
- D. None of the above
Answer
Answer C. Procedural query Language
Q55: Key to represent relationship between tables is called
Answer option
- A. Primary key
- B. Secondary Key
- C. Foreign Key
- D. None of these
Answer
Answer C. Foreign Key
Q56: ___produces the relation that has attributes of Ri and R2
Answer option
- A. Cartesian product
- B. Difference
- C. Intersection
- D. Product
Answer
Answer A. Cartesian product
Q57: Which of the following are the properties of entities?
Answer option
- A. Groups
- B. Table
- C. Attributes
- D. Switchboards
Answer
Answer C. Attributes
Q58: Inductive logic programming is
Answer option
- A. A class of learning algorithms that try to derive a Prolog program from examples
- B. A table with n independent attributes can be seen as an n-dimensional space
- C. A prediction made using an extremely simple method, such as always predicting the same output
- D. None of these
Answer
Answer A. A class of learning algorithms that try to derive a Prolog program from examples
Q59: Machine learning is
Answer option
- A. An algorithm that can learn
- B. A sub-discipline of computer science that deals with the design and implementation of learning algorithms
- C. An approach that abstracts from the actual strategy of an individual algorithm and can therefore be applied to any other form of machine learning
- D. None of these
Answer
Answer B. A sub-discipline of computer science that deals with the design and implementation of learning algorithms
Q60: Projection pursuit is
Answer option
- A. The result of the application of a theory or a rule in a specific case
- B. One of several possible enters within a database table that is chosen by the designer as the primary means of accessing the data in the table
- C. Discipline in statistics that studies ways to find the most interesting projections of multi-dimensional spaces
- D. None of these
Answer
Answer C. Discipline in statistics that studies ways to find the most interesting projections of multi-dimensional spaces
Q61: Node is
Answer option
- A. A component of a network
- B. In the context of KDD and data mining, this refers to random errors in a database table
- C. One of the defining aspects of a data warehouse
- D. None of these
Answer
Answer A. A component of a network
Q62: Statistical significance is
Answer option
- A. The science of collecting, organizing, and applying numerical facts
- B. Measure of the probability that a certain hypothesis is incorrect given certain observations
- C. One of the defining aspects of a data warehouse, which is specially built around all the existing applications of the operational data
- D. None of these
Answer
Answer B. Measure of the probability that a certain hypothesis is incorrect given certain observations
Q63: Multi-dimensional knowledge is
Answer option
- A. A class of learning algorithms that try to derive a Prolog program from examples
- B. A table with n independent attributes can be seen as an n-dimensional space
- C. A prediction made using an extremely simple method, such as always predicting the same output
- D. None of these
Answer
Answer B. A table with n independent attributes can be seen as an n-dimensional space
Q64: Noise is
Answer option
- A. A component of a network
- B. In the context of KDD and data mining, this refers to random errors in a database table
- C. One of the defining aspects of a data warehouse
- D. None of these
Answer
Answer A. A component of a network
Q65: Query tools are
Answer option
- A. A reference to the speed of an algorithm, which is quadratically dependent on the size of the data
- B. Attributes of a database table that can take only numerical values
- C. Tools designed to query a database
- D. None of these
Answer
Answer C. Tools designed to query a database
Q66: Operational database is
Answer option
- A. A measure of the desired maximal complexity of data mining algorithms
- B. A database containing volatile data used for the daily operation of an organization
- C. Relational database management system
Answer
Answer B. A database containing volatile data used for the daily operation of an organization
Q67: Prediction is
Answer option
- A. The result of the application of a theory or a rule in a specific case
- B. One of several possible enters within a database table that is chosen by the designer as the primary means of accessing the data in the table
- C. Discipline in statistics that studies ways to find the most interesting projections of multi-dimensional spaces
- D. None of these
Answer
Answer A. The result of the application of a theory or a rule in a specific case
Q68: Which of the following applied on warehouse?
Answer option
- A. write only
- B. read only
- C. both a & b
- D. none of these
Answer
Answer B. read only
Q69: Data can be store, retrive and updated in___
Answer option
- A. SMTOP
- B. OLTP
- C. FTP
- D. OLAP
Answer
Answer B. OLTP
Q70: Which of the following is a good alternative to the star schema?
Answer option
- A. snow flake schema
- B. star schema
- C. star snow flake schema
- D. fact constellation
Answer
Answer D. fact constellation
Q71: Patterns that can be discovered from a given database are which type___
Answer option
- A. More than one type
- B. Multiple type always
- C. One type only
- D. No specific type
Answer
Answer A. More than one type
Q72: Background knowledge is___
Answer option
- A. It is a form of automatic learning
- B. A neural network that makes use of a hidden layer
- C. The additional acquaintance used by a learning algorithm to facilitate the learning process
- D. None of these
Answer
Answer C. The additional acquaintance used by a learning algorithm to facilitate the learning process
Q73: Data mining is?
Answer option
- A. time variant non-volatile collection of data
- B. The actual discovery phase of a knowledge
- C. The stage of selecting the right data
- D. None of these
Answer
Answer B. The actual discovery phase of a knowledge
Q74: ___is not a data mining functionality?
Answer option
- A. Clustering and Analysis
- B. Selection and interpretation
- C. Classification and regression
- D. Characterizantion and Discrimination
Answer
Answer B. Selection and interpretation
Q75: Which of the following can also applied to other forms?
Answer option
- A. Data streams & Sequence data
- B. Networked data
- C. Text & Spatial data
- D. All of these
Answer
Answer D. All of these
Q76: Which of the following is general characteristics or features of a target class of data?
Answer option
- A. Data selection
- B. Data discrimination
- C. Data Classification
- D. Data Characterization
Answer
Answer D. Data Characterization
Q77: ___is the out put of KDD
Answer option
- A. Query
- B. Useful Information
- C. Data
- D. information
Answer
Answer B. Useful Information
Q78: What is noise?
Answer option
- A. component of a network
- B. context of KDD and data mining
- C. aspects of a data warehouse
- D. None of these
Answer
Answer B. context of KDD and data mining
Q79: What is the adaptive system management?
Answer option
- A. machine language techniques
- B. machine learning techniques
- C. machine procedures techniques
- D. none of these
Answer
Answer B. machine learning techniques
Q80: An essential process used for applying intelligent methods to extract the data patterns is named as___
Answer option
- A. data mining
- B. data analysis
- C. data implementation
- D. data computation
Answer
Answer A. data mining
