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Which statement describes the goal of a typical data mining project?
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A. Produce reports describing customer behavior, based on empirical data. j j j j j j j j
B. Assess risk associated with past business decisions. j j j j j j
C. Predict the behavior of future cases based on past information. j j j j j j j j j
D. Provide insightful financial reports that help business decision making. j j j j j j j j j Answer- C. j j
Predict the behavior of future cases based on past information
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Which tab allows you to count how many valid records exist in the data audit node dialog?
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A. Annotations
B. Output
C. Settings
D. Quality Answer- D. Quality j j j j
You need to create a single report that can be run at different times for different months
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without editing the stream after it has been deployed. How should you build the stream?
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A. Make a filler node to put the correct value into the stream.
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B. Create a session parameter for the month. Enter the data as needed.
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C. Hard code the month in a SuperNode. Update when necessary.
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D. Use a partition node to create separate sample groups for each month. Answer- B.
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Create a session parameter for the month. Enter the data as needed.
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What is a segmentation modeling method that automatically sets the number of clusters into
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which records are then classified?
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A. Kohonen networks j
B. AutoCluster
C. TwoStep
D. K-Means Answer- C. TwoStep j j j j
Identify an important characteristic of the segmentation model.
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A. The segmentation model identifies clusters in the data.
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B. The segmentation model does not create a nugget.
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C. The segmentation model has multiple targets.
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,D. The segmentation model has a predefined output.j j j j j j j Answer- A. The segmentation j j j j
model identifies clusters in the data.j j j j j
You are building a stream with SPSS MODELER. The bottom of the Table output
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window shows many records with all $null$ values. How can you eliminate these
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records from your model? j j j
A. Edit the properties of the stream and choose the option: "Exclude null values".
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B. Generate a Select node where data_known="yes". j j j j j
C. Edit the Table node and choose the option: "Exclude null values".
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D. Edit the Select node and add "where data_known="yes" to the SQL statement.
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Answer- B. Generate a Select node where data_known="yes". j j j j j j j
How do you specify which records are grouped together in a derive node in count mode?
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A. by entering a 'Reset when' criteria
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B. by entering an 'Increment by' of 0
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C. by entering an 'Initial value' of the field name
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D. by entering the 'Group by' field Answer- A. by entering a 'Reset when' criteria
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You have built a stream in SPSS MODELER that includes two source nodes and four output
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nodes. How can you run the stream to produce all four outputs?
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A. Click the Run button from the main menu. j j j j j j j
B. Right-click a source node and choose Run "Selection". j j j j j j j
C. Right-click one of the terminal nodes and choose Run All". j j j j j j j j j
D. Select a source node and click the Run button from the main menu. Answer- A. j j j j j j j j j j j j j j j
Click the Run button from the main menu.
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Which selection is indicative of a Association modeling objective?
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A. A person's age is a determining factor to predict whether a Website visitor will click on an
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ad for something interesting on Facebook.
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B. Subjects who change jobs every six months are more likely to default on an j j j j j j j j j j j j j j
automobile loan. j
C. Income is a determining factor for whether a family takes a summer vacation to a j j j j j j j j j j j j j j j
foreign country or resort area. j j j j
D. Cell phone users who subscribe to plan A will likely purchase the newest cell phone as
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soon as it is released. Answer- D. Cell phone users who subscribe to plan A will likely
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purchase the newest cell phone as soon as it is released. j j j j j j j j j j
Which of the following means a model can fit the training set perfectly and fails with unseen
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future data? j
A. Underfitting
B. Prediction
C. Overfitting
D. Cross validation Answer- C. Overfitting j j j j j
, You are using Data Refinery, which tab can give you insights into your data, helping you
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identify patterns, connections, and relationships?
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A. Functions
B. Profile
C. Operations
D. Visualizations Answer- D. Visualizations j j j j
Which node will create a classification table, based on the accuracy of a model?
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A. Sample
B. Analysis
C. Partition
D. Data Audit Answer- B. Analysis j j j j j
Your Data Set consists of 5000 records describing houses and you are trying to predict the
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house price, if one of the fields in your data set describes the area of the house, what should
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the role of this field be?
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A. Both
B. Partition
C. Target
D. Input Answer- D. Input j j
Which statement describes a CHAID analysis?
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A. the process of Detecting Automatic Interaction through classification and heuristics
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B. a classification and prediction method based on classification and regression
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C. a decision-tree technique that looks for predictive variables based on Chi-square
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testing
D. a modified Chi-square analysis that produces a predictive decision tree Answer- C. a
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decision-tree technique that looks for predictive variables based on Chi-square testing j j j j j j j j j j
Which of the following can't be a reason for a data mining project failure?
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A. Not enough time spent on data preparation
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B. The complexity of the model is of O(n2)
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C. Bad quality data j j
D. Some inputs/factors can't be legally used Answer- B. The complexity of the model is of
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O(n2)
Which of the following means a machine learning model cannot fit the training data or
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generalize to new data? j j j
A. Overfitting
B. Feedforwad
C. Underfitting
D. Backpropagation Answer- C. Underfitting j j j j
Which statement is true about Apache Spark?
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A. Apache Spark is a service with features for training and deploying machine learning
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models and neural networks. j j j