Data Mining - 1

LIST OF ATTEMPTED QUESTIONS AND ANSWERS


Select The Blank
Question
Semantic integration of ________ genome database is the important task of
DNA analysis.
Correct Answer
Heterogeneous and distributed
Your Answer
Heterogeneous and distributed


Multiple Choice Single Answer
Question
Main advantage of following which method is it's fast processing?
Correct Answer
Grid based
Your Answer
Partioning based


Select The Blank
Question
With the widespread option of ________ real-time connection is viable for
data warehouse.
Correct Answer
TCP/IP
Your Answer
HTTP


Select The Blank
Question
________ are responsible for running queries and reports against data
warehouse tables.
Correct Answer
End users
Your Answer
End users


Multiple Choice Multiple Answer
Question
Advantages of Wavelet transformation for clustering are :-
Correct Answer
Unsupervised clustering , Detection of cluster for accuracy , Clustering is
fast
Your Answer
Unsupervised clustering , Clustering is fast , Decomposition of cluster for
accuracy


Multiple Choice Single Answer
Question
Query tool is meant for :-
Correct Answer
Data acquisition
Your Answer
Information delivery


Multiple Choice Single Answer
Question
Which of the following function involves data cleaning, data standardizing
and summarizing?
Correct Answer
Transforming data
Your Answer
Storing data


Multiple Choice Multiple Answer
Question
Which of the following clustering analysis method uses multiresolution
approach?
Correct Answer
STING , Wave Cluster
Your Answer
STING , Wave Cluster


Multiple Choice Single Answer
Question
Which type of following clustering computes augumented cluster ordering?
Correct Answer
OPTICS
Your Answer
CLQUE


Multiple Choice Multiple Answer
Question
Time variant nature of the data in data warehouse :-
Correct Answer
Allows for analysis of the past , Relate information to the present ,
Enables forecasts for the future
Your Answer
Allows for analysis of the past , Relate information to the present ,
Enables forecasts for the future


True/False
Question
The Structure that brings all the components together is known as
Architecture.
Correct Answer
True
Your Answer
True


Multiple Choice Multiple Answer
Question
Data compression is to compress the given data by encoding in terms of :-
Correct Answer
Association rule , Decision tree , Cluster
Your Answer
Bytes , Cluster


Multiple Choice Multiple Answer
Question
The different definitions of metadata are :-
Correct Answer
Data about data , Catalog of data , Data warehouse roadmap
Your Answer
Data about data , Catalog of data , Data warehouse roadmap


True/False
Question
A distinct feature of DB Miner is its data cube based online analytical
mining.
Correct Answer
True
Your Answer
False


Multiple Choice Single Answer
Question
Association rules mining is based on :-
Correct Answer
Clustering and Employing rules for classification
Your Answer
Clustering and Employing rules for classification


True/False
Question
A distinguishing feature of Clementine is its object oriented extended
module interface.
Correct Answer
True
Your Answer
True


Select The Blank
Question
________ includes Normalization and Aggregation as data preprocessing
procedures.
Correct Answer
Data transformation
Your Answer
Data transformation


True/False
Question
To remove noise from data is called as Smoothing.
Correct Answer
True
Your Answer
True


Multiple Choice Single Answer
Question
Data matrix is :-
Correct Answer
Object by variable structure
Your Answer
Object by variable structure


True/False
Question
Data updates are common place in an operational database.
Correct Answer
True
Your Answer
True


True/False
Question
In decision tree internal nodes are denoted by ovals and leaf nodes are
denoted by rectangles
Correct Answer
False
Your Answer
True


True/False
Question
From a Dataware house perspective data mining canbe viewed as an advanced
stage of Online Analytical Programming.
Correct Answer
True
Your Answer
True


Match The Following
Question
Correct Answer
Your Answer

Disparate data
Production data
Query and analysis

Non volatile data
Query and analysis
Archive data

Data granularity
Level of detail
Level of detail

Data from external source
External data
External data



Multiple Choice Multiple Answer
Question
In physical design of data warehouse administration provides features like
:-
Correct Answer
Avoiding reorganizing of tables , Support backup and recovery , Query
processing
Your Answer
Support backup and recovery , Manage store area , Query processing


Select The Blank
Question
________ is the user who has system access privileges but no database
administration privileges as well as not for table and views.
Correct Answer
Network administrator
Your Answer
End user


Multiple Choice Multiple Answer
Question
Data mining Functionalities are :-
Correct Answer
Charactrization and Discrimination , Association Analysis , Cluster Analysis

Your Answer
Association Analysis , Cluster Analysis , Time series Data Analysis


Select The Blank
Question
________ dimension of database in which primitive level data are spatial but
generalization becomes non spatial.
Correct Answer
Spatial to non spatial
Your Answer
Spatial to non spatial


Multiple Choice Multiple Answer
Question
Source Data Component may be grouped into following categories :-
Correct Answer
Production Data , Internal External Data
Your Answer
Internal External Data , Analyzed data , Non Analyzed data


Select The Blank
Question
________ technique is the statistical technique for analyzing data.
Correct Answer
Time series
Your Answer
Time series


Multiple Choice Multiple Answer
Question
The strategies for data reduction are :-
Correct Answer
Data aggregation , Dimension reduction , Numerocity reduction
Your Answer
Data aggregation , Dimension reduction , Numerocity reduction


Multiple Choice Single Answer
Question
Classification rules are extracted from
Correct Answer
Decision Tree
Your Answer
Root-Node


Match The Following
Question
Correct Answer
Your Answer

Data Mining
Knowledge discovery
Knowledge discovery

Metadata
Roadmap for user
Details of summary

Data storage
Data management
Data management

Data staging
Workbench for data
Workbench for data



True/False
Question
Data cube stores multidimensional aggregate information.
Correct Answer
True
Your Answer
True


Select The Blank
Question
________ is the method used to predict the value of response variable from
one to more variables.
Correct Answer
Regression
Your Answer
Regression


Select The Blank
Question
________ databases are one of the most poplularly available and rich
information repositories.
Correct Answer
Relational
Your Answer
Object oriented


True/False
Question
COBWEB is a method of incremental conceptual clustering.
Correct Answer
True
Your Answer
True


Multiple Choice Single Answer
Question
Many methods for data smoothing are also methods for data reduction
involving :-
Correct Answer
Discretization
Your Answer
Clustering


Multiple Choice Single Answer
Question
Dimensionality reduction reduces the data set size by removing :-
Correct Answer
Irrelevant attributes
Your Answer
Irrelevant attributes


Multiple Choice Single Answer
Question
Effect of one attibute value on a given class is independent of values of
other attibute is called
Correct Answer
Value independence
Your Answer
Class Conditional independence


Multiple Choice Single Answer
Question
Which from the following are special programs that are stored on database
and fired when certain predefined action occurs?
Correct Answer
Triggers
Your Answer
Triggers


Select The Blank
Question
A web server usually registers ________ entry for every access of a web page
Correct Answer
Weblog
Your Answer
Log


Multiple Choice Single Answer
Question
Bayes Theorem is :-
Correct Answer
P(H|X)=P(X|H)(P)/P(X)
Your Answer
P(H|X)=P(X|H)(P)/P(X)


True/False
Question
Visual display can help user to give clear impression and overview of the
data characteristics in a database.
Correct Answer
True
Your Answer
True


Multiple Choice Single Answer
Question
Which of the following is based on set of density distribution function
clustering?
Correct Answer
DBSCAN
Your Answer
DBSCAN


Multiple Choice Multiple Answer
Question
Metadata in a data warehouse falls into following categories :-
Correct Answer
Operational Metadata , Extraction and Transformation metadata , End-user
Metadata
Your Answer
Operational Metadata , Extraction and Transformation metadata , End-user
Metadata


Multiple Choice Multiple Answer
Question
Knowledge discovery process includes :-
Correct Answer
Data Cleaning , Data Intergration , Data Selectin
Your Answer
Data Cleaning , Data Intergration , Data Selectin


Select The Blank
Question
Human being have around ________ gene.
Correct Answer
100000
Your Answer
1000000