1: Which of the following applied on warehouse?
a) write only
b) read only
c) both a & b
d) none of these
2: Data can be store , retrive and updated in …
a) SMTOP
b) OLTP
c) FTP
d) OLAP
3: Which of the following is a good alternative to the star schema?
a) snow flake schema
b) star schema
c) star snow flake schema
d) fact constellation
4: Patterns that can be discovered from a given database are which type…
a) More than one type
b) Multiple type always
c) One type only
d) No specific type
5:Background knowledge is…
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
6: Which of the following is true for Classification?
a) A subdivision of a set
b) A measure of the accuracy
c) The task of assigning a classification
d) All of these
7: Data mining is?
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
8: ——- is not a data mining functionality?
A) Clustering and Analysis
B) Selection and interpretation
C) Classification and regression
D) Characterization and Discrimination
9: Which of the following can also applied to other forms?
a) Data streams & Sequence data
b) Networked data
c) Text & Spatial data
d) All of these
10:Which of the following is general characteristics or features of a target class of data?
a) Data selection
b) Data discrimination
11: ——– is the out put of KDD…
a) Query
b) Useful Information
c) Data
d) information
12: What is noise?
a) component of a network
b) context of KDD and data mining
c) aspects of a data warehouse
d) None of these
Data mining is a tool for allowing users to find the hidden relationships in data. True/False
13. Firms that are engaged in sentiment mining are analyzing data collected from?
A. social media sites.
B. in-depth interviews.
C. focus groups.
D. experiments.
E. observations.
14. Which of the following forms of data mining assigns records to one of a predefined set of classes?
(A). Classification
(B). Clustering
(C). Both A and B
(D). None
15. What are the two main objectives associated with data mining?
16. The learning which is used to find the hidden pattern in unlabeled data is called?
(A). Unsupervised learning
(B). Supervised learning
(C). Reinforcement learning
Answer : (A). Unsupervised learning
17. Select the correct statement about the Adaptive system management.
(A). Science of making machines performs tasks that would require intelligence when performed by humans
(B). Takes some value as input and shows some values as an output.
(C). Both a and b
(D). get the benefit from machine-learning. The program performs the process of learning by past experience. This experience is helpful in adapting themselves to new problems
Answer(D). get the benefit from machine-learning. The program performs the process of learning by past experience. This experience is helpful in adapting themselves to new problems
18. The learning which is the example of Self-organizing maps?
(A). Reinforcement learning
(B). Supervised learning
(C). Unsupervised learning
(D). Missing data imputation
Ans: (C). Unsupervised learning
19. According to storks’ population size, find the total number of babies from the following example of predicting the number of babies.
(A). feature
(B). outcome
(C). attribute
(D). observation
Answer: (B). outcome
20. Which of the following is not belong to data mining?
(A). Knowledge extraction
(B). Data transformation
(C). Data exploration
(D). Data archaeology
Answer: (B). Data transformation
21. The learning which is used for inferring a model from labeled training data is called?
(A). Unsupervised learning
(B). Reinforcement learning
(C). Supervised learning
Answer : (C). Supervised learning
22. Which of the following is the right approach to Data Mining?
(A). Infrastructure, exploration, analysis, exploitation, interpretation
(B). Infrastructure, exploration, analysis, interpretation, exploitation
(C). Infrastructure, analysis, exploration, interpretation, exploitation
(D). None of these
Answer: (B). Infrastructure, exploration, analysis, interpretation, exploitation
23. Which of the following terms is used as a synonym for data mining?
(A). knowledge discovery in databases
(B). data warehousing
(C). regression analysis
(D). parallel processing in databases
Answer: (A)
24. Firms that are engaged in sentiment mining are analyzing data collected from
(A). experiments.
(B). social media sites.
(C). focus groups.
(D). in-depth interviews.
(E). observations.
(F). None of these
Answer: B. social media sites.
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