Microsoft Azure AI Fundamentals (AI-900) 2 — Questions and Answers
Question 1: Which Azure service provides pre-built AI models for vision, speech, language, and decision tasks without requiring custom model training?
- Azure Machine Learning
- Azure Cognitive Services (Correct answer)
- Azure Databricks
- Azure Synapse Analytics
Correct answer: Azure Cognitive Services
Azure Cognitive Services offers ready-to-use APIs for common AI tasks including vision, speech, language understanding, and decision support.
Question 2: A retailer wants to automatically tag product images with descriptive labels. Which Azure Cognitive Services feature is most appropriate?
- Form Recognizer
- Image Analysis (Computer Vision) (Correct answer)
- Text Analytics
- Personalizer
Correct answer: Image Analysis (Computer Vision)
The Image Analysis feature of Azure Computer Vision can detect and return tags describing objects, scenes, and concepts in images.
Question 3: What is the primary purpose of Azure Personalizer?
- Generating personalized email templates
- Ranking content to show users based on real-time reinforcement learning (Correct answer)
- Translating content into a user's preferred language
- Segmenting users into demographic clusters
Correct answer: Ranking content to show users based on real-time reinforcement learning
Azure Personalizer uses reinforcement learning to select the best content item to show each user based on context and past feedback.
Question 4: Which principle of Responsible AI focuses on ensuring AI systems work reliably and safely under all expected conditions?
- Fairness
- Privacy and Security
- Reliability and Safety (Correct answer)
- Inclusiveness
Correct answer: Reliability and Safety
The Reliability and Safety principle requires that AI systems perform as intended and handle unexpected situations without causing harm.
Question 5: An organization needs to detect fraudulent financial transactions in real time. Which type of machine learning task is this?
- Regression
- Clustering
- Binary classification (Correct answer)
- Time series forecasting
Correct answer: Binary classification
Fraud detection predicts one of two outcomes (fraud or legitimate), making it a binary classification problem.
Question 6: What does 'precision' measure in a classification model evaluation?
- The percentage of actual positives correctly identified
- The percentage of predicted positives that are truly positive (Correct answer)
- The overall accuracy across all classes
- The model's ability to avoid false negatives
Correct answer: The percentage of predicted positives that are truly positive
Precision measures the proportion of positive predictions that were actually correct, calculated as true positives divided by all predicted positives.
Question 7: Which Azure service allows you to build, train, and deploy machine learning models using a visual drag-and-drop interface?
- Azure Machine Learning designer (Correct answer)
- Azure Databricks
- Azure Cognitive Search
- Azure Bot Service
Correct answer: Azure Machine Learning designer
Azure Machine Learning designer provides a no-code visual canvas where you connect dataset and module components to build ML pipelines.
Microsoft Azure AI Fundamentals (AI-900) 2
Which Azure service provides pre-built AI models for vision, speech, language, and decision tasks without requiring custom model training?