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IBM C1000-059 IBM AI Enterprise Workflow V1 Data Science Specialist Exam Practice Test

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Total 62 questions

IBM AI Enterprise Workflow V1 Data Science Specialist Questions and Answers

Question 1

When should median value be used instead of mean value for imputing missing data?

Options:

A.

for skewed data

B.

for real numbers

C.

for normally distributed data

D.

for large data sets

Question 2

Which two statements are correct about deploying machine learning models? (Choose two.)

Options:

A.

It allows integration within business applications.

B.

It makes it possible to create reports for management dynamically using specific parameters from executives.

C.

It is critical for achieving high accuracy in training.

D.

It is a necessary step in training and evaluating the performance of the models.

E.

It is only possible on the cloud because they require a large amount of compute resources.

Question 3

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

Options:

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.

Question 4

What statement is true about UTF-8?

Options:

A.

It is encoding for Latin script.

B.

It is rarely used today.

C.

It is encoding for Unicode characters.

D.

It is equal to ASCII.

Question 5

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 .

Options:

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

Question 6

Which is a preferred approach for simplifying the data transformation steps in machine learning model management and maintenance?

Options:

A.

Implement data transformation, feature extraction, feature engineering, and imputation algorithms in one single pipeline.

B.

Do not apply any data transformation or feature extraction or feature engineering steps.

C.

Leverage only deep learning algorithms.

D.

Apply a limited number of data transformation steps from a pre-defined catalog of possible operations independent of the machine learning use case.

Question 7

Which statement is true for naive Bayes?

Options:

A.

Naive Bayes can be used for regression.

B.

Let p(C1 | x) and p(C2 | x) be the conditional probabilities that x belongs to class C1 and C2 respectively, in a binary model, log p (C1 | x) – log p(C2 | x) > 0 results in predicting that x belongs to C2.

C.

Naive Bayes is a conditional probability model.

D.

Naive Bayes doesn't require any assumptions about the distribution of values associated with each class.

Question 8

When communicating technical results to business stakeholders, what are three appropriate topics to include? (Choose three.)

Options:

A.

methods that failed

B.

newest developments in AI methods

C.

benefits of cognitive over business analytics

D.

realistic impact on the business measures

E.

differences between cloud provider portfolios

F.

alternative methods to address the business problem

Question 9

What is meant by part-of-speech tagging in the context of text analytics?

Options:

A.

replaces words with synonyms, e g. answer for reply

B.

translates word by word

C.

finds the root word

D.

determines the category of a word, e.g nouns

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Total 62 questions