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C1000-059 Questions and Answers

Question # 6

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.

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Question # 7

Select the three computing languages that IBM Cloud Object Storage SDK supports. (Choose three.)

A.

Node.js

B.

Java

C.

PHP

D.

Swift

E.

Python

F.

C/C++

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Question # 8

A neural network is trained for a classification task. During training, you monitor the loss function for the train dataset and the validation dataset, along with the accuracy for the validation dataset. The goal is to get an accuracy of 95%.

From the graph, what modification would be appropriate to improve the performance of the model?

A.

increase the depth of the neural network

B.

insert a dropout layer in the neural network architecture

C.

increase the proportion of the train dataset by moving examples from the validation dataset to the train dataset

D.

restart the training with a higher learning rate

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Question # 9

The formula for recall is given by (True Positives) / (True Positives + False Negatives). What is the recall for this example?

A.

0.2

B.

0.25

C.

0.5

D.

0.33

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