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Microsoft AI-900 Certification Exam Practice Questions -2

Posted on October 29, 2020 By DesiBanjara No Comments on Microsoft AI-900 Certification Exam Practice Questions -2

Microsoft Azure AI Fundamentals (AI-900) Certification Exam Practice Questions

Below are some practice questions for Microsoft AI-900 Certification Exam which can help you to prepare for exam and pass with good marks. These are not real exam questions but similar to the questions you can get in exam so practicing these question will boost your confidence.

Question – 7

Which metric can you use to evaluate a classification model?

A. true positive rate
B. mean absolute error (MAE)
C. coefficient of determination (R2)
D. root mean squared error (RMSE)

Correct Answer: A
What does a good model look like?
An ROC curve that approaches the top left corner with 100% true positive rate and 0% false positive rate will be the best model. A random model would display as a flat line from the bottom left to the top right corner. Worse than random would dip below the y=x line.
Reference:
https://docs.microsoft.com/en-us/azure/machine-learning/how-to-understand-automated-ml#classification




Question – 8

Which two components can you drag onto a canvas in Azure Machine Learning designer? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

A. dataset
B. compute
C. pipeline
D. module

Correct Answer: AD
You can drag-and-drop datasets and modules onto the canvas.
Reference:
https://docs.microsoft.com/en-us/azure/machine-learning/concept-designer




Question – 9

You need to create a training dataset and validation dataset from an existing dataset.
Which module in the Azure Machine Learning designer should you use?

A. Select Columns in Dataset
B. Add Rows
C. Split Data
D. Join Data

Correct Answer: C
A common way of evaluating a model is to divide the data into a training and test set by using Split Data, and then validate the model on the training data.
Use the Split Data module to divide a dataset into two distinct sets.
The studio currently supports training/validation data splits
Reference:
https://docs.microsoft.com/en-us/azure/machine-learning/how-to-configure-cross-validation-data-splits

Question – 10

Which type of machine learning should you use to predict the number of gift cards that will be sold next month?

A. classification
B. regression
C. clustering

Correct Answer: C
Clustering, in machine learning, is a method of grouping data points into similar clusters. It is also called segmentation.
Over the years, many clustering algorithms have been developed. Almost all clustering algorithms use the features of individual items to find similar items. For example, you might apply clustering to find similar people by demographics. You might use clustering with text analysis to group sentences with similar topics or sentiment.
Reference:
https://docs.microsoft.com/en-us/azure/machine-learning/studio-module-reference/machine-learning-initialize-model-clustering




Question – 11

You have a dataset that contains information about taxi journeys that occurred during a given period.
You need to train a model to predict the fare of a taxi journey.
What should you use as a feature?

A. the number of taxi journeys in the dataset
B. the trip distance of individual taxi journeys
C. the fare of individual taxi journeys
D. the trip ID of individual taxi journeys

Correct Answer: B
The label is the column you want to predict. The identified Featuresare the inputs you give the model to predict the Label.

Reference:
https://docs.microsoft.com/en-us/dotnet/machine-learning/tutorials/predict-prices




Question – 12

You need to predict the sea level in meters for the next 10 years.
Which type of machine learning should you use?

A. classification
B. regression
C. clustering

Correct Answer: B
In the most basic sense, regression refers to prediction of a numeric target.
Linear regression attempts to establish a linear relationship between one or more independent variables and a numeric outcome, or dependent variable.
You use this module to define a linear regression method, and then train a model using a labeled dataset. The trained model can then be used to make predictions.
Reference:
https://docs.microsoft.com/en-us/azure/machine-learning/studio-module-reference/linear-regression




Previous->Microsoft AI-900 Certification Exam Practice Questions

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More Exam Questions:

Microsoft AZ-900 Certification Exam Practice Questions – Part 1

Microsoft AZ-220 Certification Exam Practice Questions – Part 1

Sample Exam Questions 6: AZ-300: Microsoft Azure Architect Technologies

Sample Exam Questions 5: AZ-300: Microsoft Azure Architect Technologies



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