AI-900 : Microsoft Azure AI Fundamentals Exam

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AI-900
Microsoft Azure AI Fundamentals
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Question #66
You run a charity event that involves posting photos of people wearing sunglasses on Twitter. You need to ensure that you only retweet photos that meet the following requirements:
Include one or more faces.
Contain at least one person wearing sunglasses. What should you use to analyze the images?
the Verify operation in the Face service
the Detect operation in the Face service
the Describe Image operation in the Computer Vision service
the Analyze Image operation in the Computer Vision service
Answer: B Reference:
https://docs.microsoft.com/en-us/azure/cognitive-services/face/overview
Question #67
A medical research project uses a large anonymized dataset of brain scan images that are categorized into predefined brain haemorrhage types.
You need to use machine learning to support early detection of the different brain haemorrhage types in the images before the images are reviewed by a person. This is an example of which type of machine learning?
clustering
regression
classification
Answer: C Reference:
https://docs.microsoft.com/en-us/learn/modules/create-classification-model-azure-machine-learning-designer/introduction
Question #68
When training a model, why should you randomly split the rows into separate subsets?
to train the model twice to attain better accuracy
to train multiple models simultaneously to attain better performance
to test the model by using data that was not used to train the model
Answer: C Question #69
You are evaluating whether to use a basic workspace or an enterprise workspace in Azure Machine Learning. What are two tasks that require an enterprise workspace? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.
Use a graphical user interface (GUI) to run automated machine learning experiments.
Create a compute instance to use as a workstation.
Use a graphical user interface (GUI) to define and run machine learning experiments from Azure Machine Learning designer.
Create a dataset from a comma-separated value (CSV) file.
Answer: AC
Note: Enterprise workspaces are no longer available as of September 2020. The basic workspace now has all the functionality of the enterprise workspace. Reference:
https://www.azure.cn/en-us/pricing/details/machine-learning/ https://docs.microsoft.com/en-us/azure/machine-learning/concept-workspace
Question #70
In which two scenarios can you use the Form Recognizer service? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.
Extract the invoice number from an invoice.
Translate a form from French to English.
Find image of product in a catalog.
Identity the retailer from a receipt.
Answer: AD Reference:
https://azure.microsoft.com/en-gb/services/cognitive-services/form-recognizer/#features
Question #71
In which two scenarios can you use speech recognition? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.
an in-car system that reads text messages aloud
providing closed captions for recorded or live videos
creating an automated public address system for a train station
creating a transcript of a telephone call or meeting
Answer: BD Reference:
https://azure.microsoft.com/en-gb/services/cognitive-services/speech-to-text/#features
Question #72
You need to build an app that will read recipe instructions aloud to support users who have reduced vision. Which version service should you use?
Text Analytics
Translator Text
Speech
Language Understanding (LUIS)
Answer: C Reference:
https://azure.microsoft.com/en-us/services/cognitive-services/text-to-speech/#features
Question #73
Which scenario is an example of a webchat bot?
Determine whether reviews entered on a website for a concert are positive or negative, and then add a thumbs up or thumbs down emoji to the reviews.
Translate into English questions entered by customers at a kiosk so that the appropriate person can call the customers back.
Accept questions through email, and then route the email messages to the correct person based on the content of the message.
From a website interface, answer common questions about scheduled events and ticket purchases for a music festival.
Answer: D

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