HOTSPOT -
Select the answer that correctly completes the sentence.
Hot Area:
Show Answer
Correct Answer: Optical character recognition (OCR)
Explanation: OCR is designed to extract text from images, including handwritten documents, unlike object detection, facial recognition, or image classification.
Question 45
HOTSPOT
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Select the answer that correctly completes the sentence.
Show Answer
Correct Answer: Object detection
Explanation: Object detection identifies multiple types of objects within a single image, typically distinguishing each item present. Image classification assigns one or more labels to the entire image, not individual items.
Question 46
DRAG DROP
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Match the Azure Cognitive Services service to the appropriate actions.
To answer, drag the appropriate service from the column on the left to its action on the right. Each service may be used once, more than once, or not at all.
NOTE: Each correct selection is worth one point.
Show Answer
Correct Answer: Speech
Language service
Language service
Explanation: Speech handles speech-to-text conversion. The Language service is used for natural language understanding tasks such as intent detection and applying intents to entities and utterances.
Question 47
You need to develop a mobile app for employees to scan and store their expenses while travelling.
Which type of computer vision should you use?
A. face detection
B. image classification
C. object detection
D. optical character recognition (OCR)
Show Answer
Correct Answer: D
Explanation: The app needs to scan and store expenses, which typically involves capturing receipts and extracting text such as vendor name, date, and amount. Optical Character Recognition (OCR) is specifically designed to recognize and extract text from images, making it the most appropriate computer vision technique for this use case.
Question 48
DRAG DROP
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Match the Azure Cognitive Services to the appropriate actions.
To answer, drag the appropriate service from the column on the left to its action on the right. Each service may be used once, more than once, or not at all.
NOTE: Each correct selection is worth one point.
Show Answer
Correct Answer: Custom Vision → Identify objects in an image.
Form Recognizer → Automatically import data from an invoice to a database.
Face → Identify people in an image.
Explanation: Custom Vision is used for object detection and classification in images. Form Recognizer extracts structured data from documents like invoices. The Face service detects and analyzes human faces in images.
Question 49
A historian can use ________ to digitize newspaper articles.
Select the answer that correctly completes the sentence.
A. Object detection
B. Facial recognition
C. Image classification
D. Optical character recognition (OCR)
Show Answer
Correct Answer: D
Explanation: Digitizing newspaper articles requires converting printed text in images into machine-readable text. Optical Character Recognition (OCR) is specifically designed to recognize and extract characters and words from scanned documents, unlike object detection, facial recognition, or image classification, which do not convert text into editable digital form.
Question 50
HOTSPOT
-
Select the answer that correctly completes the sentence.
Show Answer
Correct Answer: numeric
Explanation: Regression models predict continuous quantities, so the label (target variable) must be numeric.
Question 51
DRAG DROP
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You plan to deploy an Azure Machine Learning model by using the Machine Learning designer.
Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Show Answer
Correct Answer: Ingest and prepare a dataset.
Split the data randomly into training data and validation data.
Train the model.
Evaluate the model against the validation dataset.
Explanation: In Azure ML Designer, you first prepare data, then split it for training and validation, train the model on the training set, and finally evaluate performance using the validation data.
Question 52
DRAG DROP
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Match the tool to the Azure Machine Learning task.
To answer, drag the appropriate tool from the column on the left to its tasks on the right. Each tool may be used once, more than once, or not at all.
NOTE: Each correct selection is worth one point.
Show Answer
Correct Answer: Create a Machine Learning workspace:
The Azure portal
Use a drag-and-drop interface used to train and deploy models:
Machine Learning designer
Use a wizard to select configurations for a machine learning run:
Automated machine learning (automated ML)
Explanation: The Azure portal is used to create and manage Azure resources such as ML workspaces. Machine Learning designer provides a visual drag-and-drop canvas for building and deploying models. Automated ML guides users through a wizard to configure and run experiments automatically.
Question 53
HOTSPOT
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Select the answer that correctly completes the sentence.
Show Answer
Correct Answer: adding and connecting modules on a visual canvas.
Explanation: Azure Machine Learning Designer is a drag-and-drop, visual interface where you build models by adding and connecting predefined modules on a canvas, rather than writing code or relying on automated algorithm selection.
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