C1000-059 Online Practice Questions and Answers

DRAG DROP

What is the best step by step order for machine learning pipeline?

Select and Place:

Which is a technique that automates the handling of categorical variables?

A. binary encoding

B. decoding

C. autoencoding

D. one-hot encoding

What is the first step in creating a custom model in Watson Visual Recognition service?

A. Test the newly trained model.

B. Document the errors from the built in models.

C. Obtain image files containing objects to be classified and organize them into classes.

D. Use IBM SPSS to create new machine learning classifiers.

What is an example of a supervised machine learning algorithm that can be applied to a continuous numeric response variable?

A. linear regression

B. k-means

C. local outlier factor (LOF)

D. naive Bayes

Which measure can be used to show business stakeholders the likelihood that a machine learning model will generate a true prediction?

A. accuracy

B. variance

C. mean

D. skewness

Which situation would disqualify a machine learning system from being used for a particular use case?

A. The use case requires a 100% likelihood of making a correct/true prediction.

B. Training and testing data for the model contain outliers.

C. Data for the machine learning model is available only as static CSV files.

D. The neural network for the model requires significantly more computing power than a logistic regression model.

In which example would recall be preferred over precision?

A. recall is always preferred

B. identify suitable candidates for a job

C. detection of malignant tumors

D. book recommendation

What is meant by the curse of dimensionality?

A. The number of available algorithms for a given task is high.

B. The number of available data sources for a given task is high.

C. The data sparsity becomes more severe as the number of features is increased.

D. The data sparsity becomes more severe as the number of samples is increased.

If the distribution of the height of American men is approximately normal, with a mean of 69 inches and a standard deviation of 2.5 inches, then roughly 68 percent of American men have heights between __________ and __________.

A. 64 inches and 74 inches

B. 66.5 inches and 69 inches

C. 71.5 inches and 76.5 inches

D. 66.5 inches and 71.5 inches

What is the primary role of a data steward?

A. they are a "blue sky thinker" who comes up with new approaches to use new data in innovative ways

B. they have a strong understanding of the enterprise's database architecture

C. they define data processes to meet compliance and regulatory obligations

D. the one who collects, processes, and performs statistical analysis on data