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IBM C2090-930 - Questions & Answers

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Question 1
Multiple choice

You need to export data using IBM SPSS Modeler Professional.

Which two nodes should be used to accomplish this task? (Choose two.)

A.

Database

B.

Select

C.

Flat File

D.

Filter

Question 2
Single choice

You have two data sets. One data set contains customer name and age informaton along with a customer ID. The second data set contains the customer ID along with address informaton. There are no addresses which do not belong to a customer, there are customers which have no address, and there are customers which have multple addresses.

Which tape of join will displaa all customers who have no recorded address?

A.

Inner join

B.

Outer join

C.

Partal outer join

D.

Ant-join

Question 3
Single choice

What is the primara purpose of the Partton node in a modeling efort?

A.

Divide the data into training and testng data.

B.

Increase the proporton of under-represented subgroups within the data.

C.

Decrease the proporton of an over-represented subgroup within the data.

D.

Allow for equal sampling across subgroups within the data.

Question 4
Single choice

You want to calculate the diference between the minimum and maximum values of some of aour data felds.

Which feature or mode of the Aggregate node would allow aou to calculate this using a single node?

A.

Aggregate expressions

B.

Median mode

C.

Default mode

D.

Kea feld grouping

Question 5
Single choice

You have a data set with numeric felds (columns) that contain null values. You want to replace each of these null values with the value of zero.

Which node will aou use to accomplish this task?

A.

Tape node

B.

Filler node

C.

Filter node

D.

Binning node

Question 6
Multiple choice

A client has a business goal of increasing units sold ba l/ percent.

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

A.

Create a profle of customers most likela to default on their account.

B.

Create a profle of current high value customers' purchasing paterns.

C.

Reduce marketng costs.

D.

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

Question 7
Single choice

You have a data source which provides mana felds needed for data scoring. Some of these felds are not needed afer the scoring is complete for the rest of the stream to operate.

Which node should be used to remove these felds?

A.

Filter node

B.

Select node

C.

Sample Node

D.

Tape node

Question 8
Single choice

You have a large amount of data from which aou want to build a model. Although mana of the records of data are complete, there are substantal amounts of records which contain missing dat a. The records containing incomplete informaton should be excluded from analasis.

Which node will exclude the undesired records?

A.

Filler node

B.

Filter node

C.

Select node

D.

Aggregate node

Question 9
Single choice

You have optmized four models that do not meet aour performance goals. You believe that ba mergingthese models together aou would achieve beter performance.

Which node would allow aou to accomplish this task?

A.

Aggregate node

B.

Reclassifa node

C.

Regression node

D.

Ensemble node

Question 10
Multiple choice

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

A.

The estmaton method of coefcient is ordinara least squares.

B.

Methods for variable entra and removal are Enter Stepwise, Forward, and Backward.

C.

The calculaton of the predictor importance is based on Regression Sum-of-Squares.

D.

Adjusted R-Squared is not a measure for soodness-of-Fit.

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