AI-900: Practice Exam 1 (60 questions with answer key)

Practice Exam 1 – 60 Questions (with Answer key at the end)

Note: The exam is separated into topic sections to help with context and preparation, but the real exam will not be like that.


SECTION 1: Describe Artificial Intelligence workloads and considerations (Questions 1–10)

Question 1 (Single choice)

Which scenario is the best example of an AI workload?

A. A rules-based system that routes emails based on keywords
B. A dashboard that displays historical sales data
C. A system that predicts customer churn based on historical behavior
D. A script that automatically renames files


Question 2 (Multi-select – Choose TWO)

Which characteristics are commonly associated with AI solutions?

A. Deterministic outputs
B. Ability to improve with experience
C. Dependence on labeled or unlabeled data
D. Use of static business rules


Question 3 (Scenario – Single choice)

A company wants to automatically approve or reject loan applications based on past decisions and applicant attributes.
Which AI workload type does this represent?

A. Computer vision
B. Anomaly detection
C. Classification
D. Natural language processing


Question 4 (Matching)

Match each AI workload to its correct description:

AI WorkloadDescription
1. ClassificationA. Identify unusual patterns
2. RegressionB. Assign items to categories
3. ClusteringC. Group similar items without labels
4. Anomaly detectionD. Predict numeric values

Question 5 (Single choice)

Which factor is most important when evaluating the ethical impact of an AI solution?

A. Processing speed
B. Model size
C. Potential bias in training data
D. Storage cost


Question 6 (Scenario – Single choice)

An AI system used for hiring consistently favors one demographic group.
Which Responsible AI principle is most directly violated?

A. Reliability
B. Transparency
C. Fairness
D. Privacy


Question 7 (Multi-select – Choose TWO)

Which scenarios would typically require human oversight when deploying AI solutions?

A. Medical diagnosis recommendations
B. Image resizing
C. Credit approval decisions
D. Log file compression


Question 8 (Fill in the blank)

The ability for users to understand how an AI model makes decisions relates to the principle of __________.


Question 9 (Single choice)

Which workload is best suited for predicting future sales revenue?

A. Classification
B. Regression
C. Clustering
D. Object detection


Question 10 (Scenario – Single choice)

A system groups customers into segments without predefined labels.
Which AI approach is being used?

A. Supervised learning
B. Reinforcement learning
C. Unsupervised learning
D. Deep learning


SECTION 2: Describe fundamental principles of machine learning on Azure (Questions 11–20)

Question 11 (Single choice)

Which Azure service is primarily used to build, train, and deploy machine learning models?

A. Azure AI Vision
B. Azure Machine Learning
C. Azure OpenAI
D. Azure Cognitive Search


Question 12 (Multi-select – Choose TWO)

Which elements are required to train a supervised machine learning model?

A. Labeled data
B. Feature engineering
C. Pretrained transformers
D. Inference endpoints


Question 13 (Scenario – Single choice)

You want to predict house prices based on size, location, and age.
Which type of machine learning model should you use?

A. Classification
B. Regression
C. Clustering
D. Anomaly detection


Question 14 (Single choice)

Which term describes input variables used by a machine learning model?

A. Labels
B. Features
C. Targets
D. Metrics


Question 15 (Matching)

Match the learning type to the description:

Learning TypeDescription
1. SupervisedA. Learns from rewards
2. UnsupervisedB. Uses labeled data
3. ReinforcementC. Finds patterns without labels

Question 16 (Scenario – Multi-select – Choose TWO)

Which actions help reduce overfitting?

A. Increasing model complexity
B. Using more training data
C. Applying regularization
D. Training for more epochs indefinitely


Question 17 (Single choice)

Which metric is most appropriate for evaluating a classification model?

A. Mean Absolute Error
B. R-squared
C. Accuracy
D. RMSE


Question 18 (Fill in the blank)

Splitting data into training and testing sets helps evaluate a model’s __________.


Question 19 (Scenario – Single choice)

You want to visually design and deploy ML models without writing code.
Which Azure feature should you use?

A. Azure ML SDK
B. Azure ML designer
C. Azure OpenAI Studio
D. Azure AI Foundry


Question 20 (Single choice)

Which phase of the ML lifecycle involves using the model to make predictions?

A. Training
B. Validation
C. Inference
D. Feature selection


SECTION 3: Describe features of computer vision workloads on Azure (Questions 21–30)

Question 21 (Single choice)

Which Azure service is used for analyzing images and extracting visual information?

A. Azure AI Language
B. Azure AI Vision
C. Azure Machine Learning
D. Azure Cognitive Search


Question 22 (Scenario – Single choice)

A retail company wants to detect products on shelves using images.
Which computer vision task is required?

A. Image classification
B. OCR
C. Object detection
D. Face recognition


Question 23 (Multi-select – Choose TWO)

Which tasks are supported by Azure AI Vision?

A. Optical character recognition
B. Sentiment analysis
C. Image tagging
D. Language translation


Question 24 (Single choice)

What does OCR stand for?

A. Optical Code Recognition
B. Optical Character Recognition
C. Object Classification Rule
D. Optical Content Rendering


Question 25 (Scenario – Single choice)

You want to extract printed text from scanned invoices.
Which feature should you use?

A. Face detection
B. OCR
C. Image segmentation
D. Video analysis


Question 26 (Matching)

Match the vision task to the outcome:

TaskOutcome
1. Image classificationA. Identify objects and locations
2. Object detectionB. Convert images to text
3. OCRC. Assign labels to images

Question 27 (Single choice)

Which scenario is least appropriate for computer vision?

A. Identifying damaged products
B. Reading license plates
C. Detecting spoken commands
D. Counting people in a room


Question 28 (Scenario – Multi-select – Choose TWO)

Which Responsible AI concerns apply to facial recognition systems?

A. Privacy
B. Bias
C. Latency
D. Overfitting


Question 29 (Single choice)

Which Azure tool provides prebuilt vision models via REST APIs?

A. Azure ML Studio
B. Azure AI Vision
C. Azure OpenAI
D. Azure Data Factory


Question 30 (Fill in the blank)

Detecting the location and boundaries of objects in an image is called __________.


SECTION 4: Describe features of NLP workloads on Azure (Questions 31–40)

Question 31 (Single choice)

Which Azure service is primarily used for NLP workloads?

A. Azure AI Vision
B. Azure AI Language
C. Azure Machine Learning
D. Azure OpenAI


Question 32 (Scenario – Single choice)

You want to identify whether customer reviews are positive or negative.
Which NLP task should you use?

A. Key phrase extraction
B. Named entity recognition
C. Sentiment analysis
D. Language detection


Question 33 (Multi-select – Choose TWO)

Which tasks are supported by Azure AI Language?

A. Entity recognition
B. Text summarization
C. Image captioning
D. Speech synthesis


Question 34 (Single choice)

What is tokenization in NLP?

A. Converting text to audio
B. Splitting text into smaller units
C. Translating languages
D. Removing punctuation


Question 35 (Scenario – Single choice)

You want to extract company names from contracts.
Which NLP feature should you use?

A. Sentiment analysis
B. Language detection
C. Named entity recognition
D. Speech-to-text


Question 36 (Matching)

Match the NLP task to its purpose:

TaskPurpose
1. Language detectionA. Identify people, places, orgs
2. Entity recognitionB. Determine text language
3. Key phrase extractionC. Extract main ideas

Question 37 (Single choice)

Which service converts spoken language into text?

A. Azure AI Language
B. Azure AI Vision
C. Azure AI Speech
D. Azure OpenAI


Question 38 (Scenario – Multi-select – Choose TWO)

Which scenarios use NLP?

A. Chatbots
B. Image classification
C. Document analysis
D. Face detection


Question 39 (Fill in the blank)

Automatically identifying the language of a document is called __________ detection.


Question 40 (Single choice)

Which Azure service combines speech-to-text and text-to-speech capabilities?

A. Azure AI Language
B. Azure AI Vision
C. Azure AI Speech
D. Azure Cognitive Search


SECTION 5: Describe features of generative AI workloads on Azure (Questions 41–60)

Question 41 (Single choice)

What is the defining characteristic of generative AI?

A. Predicting numeric values
B. Generating new content
C. Classifying existing data
D. Detecting anomalies


Question 42 (Scenario – Single choice)

A system generates marketing copy based on a short prompt.
Which model type is being used?

A. Regression model
B. Classification model
C. Large language model
D. Decision tree


Question 43 (Multi-select – Choose TWO)

Which tasks are common for generative AI?

A. Text generation
B. Image generation
C. Anomaly detection
D. Clustering


Question 44 (Single choice)

Which Azure service provides access to GPT models?

A. Azure Machine Learning
B. Azure AI Vision
C. Azure OpenAI
D. Azure AI Language


Question 45 (Scenario – Single choice)

You want to deploy a chat-based AI assistant using Microsoft-managed models.
Which service should you use?

A. Azure ML
B. Azure AI Foundry
C. Azure OpenAI
D. Azure Cognitive Search


Question 46 (Matching)

Match the concept to the description:

ConceptDescription
1. PromptA. Fine-tuning model behavior
2. GroundingB. Input provided to model
3. Fine-tuningC. Connecting to trusted data

Question 47 (Single choice)

What is prompt engineering?

A. Training models from scratch
B. Designing effective model inputs
C. Monitoring model drift
D. Compressing datasets


Question 48 (Scenario – Multi-select – Choose TWO)

Which Responsible AI risks are especially relevant to generative AI?

A. Hallucinations
B. Toxic content
C. Feature scaling
D. Data normalization


Question 49 (Single choice)

Which feature helps ensure generative AI responses are based on company data?

A. Fine-tuning
B. Grounding
C. Tokenization
D. Embedding compression


Question 50 (Fill in the blank)

When a model produces incorrect but confident responses, this is called __________.


Question 51 (Single choice)

Which Azure platform provides a model catalog for generative AI?

A. Azure OpenAI Studio
B. Azure AI Foundry
C. Azure Machine Learning
D. Azure AI Vision


Question 52 (Scenario – Single choice)

You want to compare multiple foundation models before deployment.
Which Azure capability helps most?

A. Azure AI Foundry model catalog
B. Azure ML pipelines
C. Azure Data Factory
D. Azure Synapse


Question 53 (Multi-select – Choose TWO)

Which are considered foundation models?

A. GPT
B. BERT
C. Decision trees
D. Linear regression


Question 54 (Single choice)

Which generative AI workload creates images from text prompts?

A. Text classification
B. Text-to-image generation
C. Image tagging
D. Object detection


Question 55 (Scenario – Single choice)

You want to prevent users from generating harmful content.
Which control is most appropriate?

A. Feature engineering
B. Content filtering
C. Model retraining
D. Data labeling


Question 56 (Matching)

Match the Azure service to its role:

ServiceRole
1. Azure OpenAIA. Custom ML pipelines
2. Azure AI FoundryB. Managed foundation models
3. Azure MLC. Model catalog & orchestration

Question 57 (Single choice)

Which technique reduces hallucinations by connecting models to real data?

A. Fine-tuning
B. Grounding
C. Tokenization
D. Sampling


Question 58 (Scenario – Multi-select – Choose TWO)

Which scenarios are best suited for generative AI?

A. Writing product descriptions
B. Fraud detection
C. Chatbots
D. Forecasting demand


Question 59 (Single choice)

Which principle ensures users know AI-generated content is produced by AI?

A. Fairness
B. Transparency
C. Privacy
D. Reliability


Question 60 (Single choice)

Which Azure tool is commonly used to experiment with prompts?

A. Azure AI Vision Studio
B. Azure OpenAI Studio
C. Azure Data Studio
D. Azure ML designer


Practice Exam 1 – Answer Key

(It is recommended that you review the answers after attempting the exam)

SECTION 1: Describe Artificial Intelligence workloads and considerations (Q1–Q10)

Q1

Correct Answer: C
Explanation:
Predicting customer churn requires learning patterns from historical data, which is a core AI capability.

  • A & D are rule-based automation
  • B is analytics, not AI

Q2

Correct Answers: B, C
Explanation:
AI systems:

  • Improve with experience (learning)
  • Rely on data (labeled or unlabeled)
    They are not deterministic and do not rely purely on static rules.

Q3

Correct Answer: C (Classification)
Explanation:
Approving or rejecting loans is a categorical decision, which makes this a classification problem.


Q4

Correct Matches:

  • 1 → B
  • 2 → D
  • 3 → C
  • 4 → A

Explanation:
These are textbook definitions of AI workload types and frequently tested.


Q5

Correct Answer: C
Explanation:
Bias in training data directly impacts fairness and ethical outcomes. This is a major Responsible AI concern.


Q6

Correct Answer: C (Fairness)
Explanation:
Favoring one demographic group indicates bias, violating the fairness principle.


Q7

Correct Answers: A, C
Explanation:
High-impact decisions (medical, financial) require human oversight.
Low-risk automation does not.


Q8

Correct Answer: Transparency
Explanation:
Transparency means users can understand how and why AI systems make decisions.


Q9

Correct Answer: B (Regression)
Explanation:
Sales revenue is a numeric value, which regression predicts.


Q10

Correct Answer: C (Unsupervised learning)
Explanation:
Grouping data without labels is unsupervised learning.


SECTION 2: Fundamental principles of machine learning on Azure (Q11–Q20)

Q11

Correct Answer: B (Azure Machine Learning)
Explanation:
Azure ML is the primary service for building, training, and deploying ML models.


Q12

Correct Answers: A, B
Explanation:
Supervised learning requires labeled data and feature engineering.
Pretrained models and endpoints are optional.


Q13

Correct Answer: B (Regression)
Explanation:
House prices are numeric → regression.


Q14

Correct Answer: B (Features)
Explanation:
Features are input variables used by the model.


Q15

Correct Matches:

  • 1 → B
  • 2 → C
  • 3 → A

Q16

Correct Answers: B, C
Explanation:
Overfitting is reduced by:

  • More data
  • Regularization
    Increasing complexity worsens overfitting.

Q17

Correct Answer: C (Accuracy)
Explanation:
Accuracy is a common metric for classification problems.


Q18

Correct Answer: Generalization
Explanation:
Train/test splits measure how well a model performs on unseen data.


Q19

Correct Answer: B (Azure ML designer)
Explanation:
Azure ML designer is a no-code/low-code visual tool.


Q20

Correct Answer: C (Inference)
Explanation:
Inference is when the model makes predictions using new data.


SECTION 3: Computer Vision workloads on Azure (Q21–Q30)

Q21

Correct Answer: B (Azure AI Vision)


Q22

Correct Answer: C (Object detection)
Explanation:
Detecting products and their locations requires object detection.


Q23

Correct Answers: A, C
Explanation:
OCR and image tagging are vision tasks.
Sentiment and translation are NLP.


Q24

Correct Answer: B (Optical Character Recognition)


Q25

Correct Answer: B (OCR)


Q26

Correct Matches:

  • 1 → C
  • 2 → A
  • 3 → B

Q27

Correct Answer: C
Explanation:
Spoken commands are a speech workload, not vision.


Q28

Correct Answers: A, B
Explanation:
Facial recognition raises privacy and bias concerns.


Q29

Correct Answer: B (Azure AI Vision)


Q30

Correct Answer: Object detection


SECTION 4: NLP workloads on Azure (Q31–Q40)

Q31

Correct Answer: B (Azure AI Language)


Q32

Correct Answer: C (Sentiment analysis)


Q33

Correct Answers: A, B


Q34

Correct Answer: B
Explanation:
Tokenization splits text into words or subwords.


Q35

Correct Answer: C (Named entity recognition)


Q36

Correct Matches:

  • 1 → B
  • 2 → A
  • 3 → C

Q37

Correct Answer: C (Azure AI Speech)


Q38

Correct Answers: A, C


Q39

Correct Answer: Language


Q40

Correct Answer: C (Azure AI Speech)


SECTION 5: Generative AI workloads on Azure (Q41–Q60)

Q41

Correct Answer: B
Explanation:
Generative AI creates new content.


Q42

Correct Answer: C (Large language model)


Q43

Correct Answers: A, B


Q44

Correct Answer: C (Azure OpenAI)


Q45

Correct Answer: C (Azure OpenAI)


Q46

Correct Matches:

  • 1 → B
  • 2 → C
  • 3 → A

Q47

Correct Answer: B
Explanation:
Prompt engineering is crafting effective inputs.


Q48

Correct Answers: A, B


Q49

Correct Answer: B (Grounding)


Q50

Correct Answer: Hallucinations


Q51

Correct Answer: B (Azure AI Foundry)


Q52

Correct Answer: A


Q53

Correct Answers: A, B


Q54

Correct Answer: B


Q55

Correct Answer: B (Content filtering)


Q56

Correct Matches:

  • 1 → B
  • 2 → C
  • 3 → A

Q57

Correct Answer: B (Grounding)


Q58

Correct Answers: A, C


Q59

Correct Answer: B (Transparency)


Q60

Correct Answer: B (Azure OpenAI Studio)


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