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IBM C2090-930 Exam Practice Questions (P. 4)

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Question #16
You are working on a project where the business objective is to increase sales revenue.
With which CRISP-DM process model stage would you start?
  1. A
    Data Preparation
  2. B
    Data Understanding
  3. C
    Evaluation
  4. D
    Business Understanding

Correct Answer:
C

Question #17
Besides providing a new predicted value, which additional task would some modeling nuggets perform?
  1. A
    Provide additional information regarding the quality of the prediction.
  2. B
    Filter non-target fields from being passed downstream.
  3. C
    Use the scored data to update itself to increase its accuracy.
  4. D
    Export the predictions to external storage or processes for further use.

Correct Answer:
C
Reference:
http://www-01.ibm.com/support/knowledgecenter/SS3RA7_17.0.0/clementine/record_ops_nodes.html

Question #18
A customer has a large data set with no target variables or known results and is looking for a good approach for understanding more about groups within the data set.
Which two IBM SPSS Modeler Professional node applications represent a correct approach to accomplish this task? (Choose two.)
  1. A
    The customer uses a Kohonen node in an effort to group data into clusters using a self-organizing map of neurons.
  2. B
    The customer uses a TwoStep node to identify the optimal set of clusters within the data.
  3. C
    The customer uses a RFM Aggregate node to identify the optimal set of clusters within the data.
  4. D
    The customer uses a Carma node in an effort to group data into clusters using a self-organizing map of neurons.

Correct Answer:
AB

Question #19
You have duplicate records that must be removed from a data set in IBM SPSS Modeler Professional.
The appropriate node to perform this action would be found in which palette tab?
  1. A
    Sources
  2. B
    Record Ops
  3. C
    Field Ops
  4. D
    Export

Correct Answer:
B
Reference:
http://www-01.ibm.com/support/knowledgecenter/SS3RA7_17.0.0/clementine/record_ops_nodes.html

Question #20
You have executed a model node which has generated a model nugget connected to your stream's data source.
What will allow the stream to score data with this new nugget?
  1. A
    Remove any partition node to allow all data to be scored.
  2. B
    Add a Discriminant node to use the nugget model for scoring.
  3. C
    Remove the Reclassify node to use the nugget model for scoring.
  4. D
    Add an output node downstream from the nugget.

Correct Answer:
C

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