IBM C2090-930 Exam Questions Instant Access

Question 1

What is an accurate description of the purpose of data segmentation?

ASeparate an individual data field into a predefined number of equal-sized groups according to the field values.

BAssemble similar data across data sets by using a primary key.

CSeparate a data set into two equal partitions in preparation for continued analysis.

DGroup data using one or more fields to produce subsets with similar attributes.

Answer : D

Question 2

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.)

AThe customer uses a Kohonen node in an effort to group data into clusters using a self-organizing map of neurons.

BThe customer uses a TwoStep node to identify the optimal set of clusters within the data.

CThe customer uses a RFM Aggregate node to identify the optimal set of clusters within the data.

DThe customer uses a Carma node in an effort to group data into clusters using a self-organizing map of neurons.

Answer : A, B

Question 3

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?

ARemove any partition node to allow all data to be scored.

BAdd a Discriminant node to use the nugget model for scoring.

CRemove the Reclassify node to use the nugget model for scoring.

DAdd an output node downstream from the nugget.

Answer : C

Question 4

Which statement is correct about automated modeling nodes in IBM SPSS Modeler Professional?

AThe Auto Clustering node generates Neural Net models.

BThe Auto Classifier node supports Cox regression.

CThe Auto Numeric node generates Linear models.

DThe Auto Numeric node supports Bayes Net models.

Answer : C

Question 5

You have collected data about a set of patients, all of whom suffered from the same illness. During their course of treatment, each patient responded to one of five medications. The column. Drug, is a character field that describes the medication. You need to find out which proportion of the patients responded to each drug.

Which node should be used?

AWeb node

BDistribution node

CSim Fit node

DEvaluation node

Answer : C

Question 6

Which two statements are true about linear regression? (Choose two.)

AThe estimation method of coefficient is ordinary least squares.

BMethods for variable entry and removal are Enter Stepwise, Forward, and Backward.

CThe calculation of the predictor importance is based on Regression Sum-of-Squares.

DAdjusted R-Squared is not a measure for Goodness-of-Fit.

Answer : B, C

http://www-01.ibm.com/support/knowledgecenter/SSLVMB_21.0.0/com.ibm.spss.statistics.help/linear_regression_methods.htm

Question 7

A client has a business goal of increasing units sold by 10 percent.

Which two data mining objectives would be consistent with their business goal? (Choose two.)

ACreate a profile of customers most likely to default on their account.

BCreate a profile of current high value customers' purchasing patterns.

CReduce marketing costs.

DDetermine which products should be grouped together on the shopping Web site.

Answer : B, C

IBM SPSS Modeler Professional v3 C2090-930 Exam Questions