AI-900 Describe Artificial Intelligence workloads and considerations Practice Test 11 — 15 Questions

Question 1

What is 'computer vision' as a category of AI workload?

Accepted Answer

AI capabilities that interpret and understand images, video, and visual information. Computer vision is an AI workload category that enables systems to extract meaningful information from digital images, videos, and other visual inputs. It involves techniques like object detection, image classification, facial recognition, and optical character recognition (OCR), allowing machines to interpret and act on visual data. This is distinct from display hardware or UI design, as it focuses on understanding content rather than rendering or creating it.

Answer

The display technology used in computer monitors and screens

Answer

Software for designing user interfaces and graphical layouts

Answer

A programming paradigm for writing code that processes visual data efficiently

Question 2

What is 'MLOps' and how does it relate to AI workloads on Azure?

Accepted Answer

Applying DevOps practices (automation, CI/CD, monitoring) to the machine learning lifecycle. MLOps (Machine Learning Operations) is the application of DevOps principles—such as automation, continuous integration/continuous deployment (CI/CD), and monitoring—to the machine learning lifecycle. On Azure, MLOps is implemented through services like Azure Machine Learning, which provides pipelines, model registries, and automated retraining to manage the end-to-end ML workflow from data preparation to deployment and monitoring.

Answer

Operational procedures for Microsoft 365 mail system administration

Answer

A certification program for ML engineers working with Azure

Answer

The process of optimising ML model inference speed for production deployment

Question 3

What is 'speech recognition' as an AI workload?

Accepted Answer

Converting spoken audio into written text. Speech recognition, also known as automatic speech recognition (ASR), is an AI workload that converts spoken language into written text. It processes audio input and maps it to words using acoustic and language models, enabling transcription, voice commands, and dictation. Option B correctly identifies this core function.

Answer

Identifying which employee is speaking during a meeting using their voice

Answer

Recognising specific wake words to activate voice assistant devices

Answer

Detecting background noise in audio to improve recording quality

Question 4

What is 'reinforcement learning from human feedback' (RLHF) and how is it used in training AI models?

Accepted Answer

Using human preference ratings to train a reward model that guides language model optimisation. Reinforcement learning from human feedback (RLHF) is a technique where human evaluators rank or rate model outputs (e.g., text completions) to create a reward model. This reward model then guides the fine-tuning of a language model using reinforcement learning, typically with Proximal Policy Optimization (PPO), to align outputs with human preferences.

Answer

A technique where humans physically assist robots in learning physical tasks

Answer

Having human reviewers manually rewrite model outputs to improve training data

Answer

Allowing end users to flag incorrect answers to automatically retrain the model in real time

Question 5

What is 'AI system' vs 'AI model' in the context of responsible AI?

Accepted Answer

An AI model is the prediction function; an AI system includes all surrounding pipelines, interfaces, and human processes. In responsible AI, the distinction is that an AI model is the mathematical prediction function (e.g., a trained neural network or decision tree), while an AI system encompasses the model plus all surrounding components: data ingestion pipelines, inference APIs, user interfaces, monitoring, logging, and human-in-the-loop processes. This broader view is critical for governance, because ethical risks (bias, drift, transparency) often arise from the system's context, not just the model's logic.

Answer

An AI model is software; an AI system includes the hardware it runs on

Answer

AI systems are more accurate than individual models because they combine multiple models

Answer

An AI model runs offline; an AI system requires internet connectivity

Question 6

What is a 'bot' in Microsoft Azure Bot Service?

Accepted Answer

A conversational AI application that interacts with users through natural language in messaging channels. A 'bot' in Microsoft Azure Bot Service is a conversational AI application designed to interact with users through natural language across various messaging channels like Microsoft Teams, Slack, or Facebook Messenger. It leverages the Bot Framework SDK and Azure AI services (e.g., LUIS, QnA Maker) to understand user intent and provide responses, enabling human-like dialogue without requiring a custom interface for each channel.

Answer

An automated script that performs repetitive tasks in the Azure portal

Answer

A security tool that detects automated bot traffic attempting to misuse an API

Answer

An autonomous AI agent that independently manages Azure cloud infrastructure

Question 7

What is 'Azure AI Foundry' and how does it relate to building enterprise AI applications?

Accepted Answer

Microsoft's enterprise platform for the full AI development lifecycle — models, evaluation, deployment, and governance. Azure AI Foundry is Microsoft's unified enterprise platform that supports the entire AI development lifecycle, from model selection and fine-tuning to evaluation, deployment, and governance. It integrates Azure AI services, model catalog, prompt flow, and responsible AI tools, enabling teams to build, manage, and monitor production AI applications at scale. This makes it the correct answer for how Azure AI Foundry relates to building enterprise AI applications.

Answer

A physical manufacturing facility that produces Azure AI hardware accelerators

Answer

A certification programme for Azure AI engineers who build production AI systems

Answer

An open-source framework for building AI pipelines outside of Azure

Question 8

What is 'AI at the edge' and why would you deploy an AI model to an edge device?

Accepted Answer

Running AI inference locally on devices for low latency, offline capability, and data privacy. B is correct because 'AI at the edge' refers to running AI inference locally on edge devices (e.g., IoT sensors, cameras, or local servers) rather than in the cloud. This approach provides low latency by processing data immediately without network round-trips, enables offline capability when connectivity is intermittent, and enhances data privacy by keeping sensitive data on the device. It is a core AI workload consideration for scenarios like real-time video analytics or industrial predictive maintenance.

Answer

Using AI to analyse data collected near the geographic borders of a country

Answer

Using AI to detect adversarial attacks at the network perimeter

Answer

Deploying AI to the most remote Azure region for disaster recovery

Question 9

What is 'predictive maintenance' as an AI workload?

Accepted Answer

Using AI to predict equipment failures before they occur, enabling timely maintenance. Predictive maintenance uses AI (typically machine learning models trained on historical sensor data, failure logs, and operational parameters) to forecast when equipment is likely to fail. By identifying patterns and anomalies that precede breakdowns, it enables proactive intervention—reducing unplanned downtime and maintenance costs. This is a classic AI workload because it relies on predictive analytics rather than fixed schedules or reactive fixes.

Answer

Scheduling regular maintenance based on a fixed calendar without using any AI

Answer

Maintaining an AI model's accuracy by regularly retraining on new data

Answer

Using AI to automatically fix bugs in software systems without human intervention

Question 10

What is the 'dual-use' problem in AI and why is it relevant to responsible deployment?

Accepted Answer

The risk that AI capabilities designed for good can also be used for harmful purposes. The 'dual-use' problem in AI refers to the risk that a technology designed for beneficial purposes can also be misapplied for harmful ends. This is central to responsible deployment because it forces organizations to consider not only the intended use case but also potential misuse, such as facial recognition systems used for surveillance or generative AI creating disinformation. Addressing dual-use requires implementing safeguards like usage policies, access controls, and ethical review boards.

Answer

When an AI model is licensed for use by two different organisations simultaneously

Answer

Deploying the same AI model for both training and inference to reduce costs

Answer

Combining two AI models to achieve better results than either model alone

Question 11

What is 'AI bias' and how can it harm individuals in high-stakes decisions?

Accepted Answer

Systematic unfair outcomes for demographic groups caused by biased training data or design choices. AI bias refers to systematic and unfair outcomes that disproportionately affect certain demographic groups, often resulting from biased training data, flawed design choices, or improper feature selection. In high-stakes decisions such as loan approvals, hiring, or criminal sentencing, such bias can lead to discrimination, reinforce societal inequalities, and cause real harm to individuals by denying them opportunities or subjecting them to unjust treatment.

Answer

When a model's predictions consistently favour one output class due to class imbalance

Answer

When an AI model performs worse on unseen test data than on the training data

Answer

The tendency of users to trust AI recommendations over their own judgment

Question 12

What is 'recommendation system' as an AI workload and where is it commonly used?

Accepted Answer

AI that predicts user preferences to suggest relevant products, content, or connections. A recommendation system is an AI workload that analyzes historical user behavior, preferences, and item attributes to predict and suggest items a user is likely to be interested in. Option B correctly identifies this as AI that predicts user preferences to suggest relevant products, content, or connections, which is the core definition used in the AI-900 exam.

Answer

An AI that recommends Azure pricing tiers based on an organisation's usage patterns

Answer

A system that recommends when to retrain an AI model based on performance metrics

Answer

AI that recommends the best cloud architecture for a software application

Question 13

What is 'AI governance' and what tools does Azure provide for it?

Accepted Answer

The policies, processes, and controls ensuring AI systems are developed and operated responsibly. AI governance refers to the framework of policies, processes, and controls that guide the responsible development, deployment, and operation of AI systems. Azure provides tools like Azure Policy, Azure Role-Based Access Control (RBAC), and Microsoft Purview to enforce governance rules, audit AI usage, and ensure compliance with ethical standards. Option B correctly captures this definition, as it focuses on the organizational and technical mechanisms for responsible AI, not external restrictions or certifications.

Answer

Government regulation that prohibits certain types of AI systems

Answer

Electing a board of AI experts to approve all AI projects before they go to production

Answer

Restricting AI development to organisations with formal AI certifications

Question 14

What is 'fraud detection' as an AI workload and what type of ML technique does it typically use?

Accepted Answer

Using anomaly detection and classification models to identify fraudulent transactions in real time. Fraud detection is an AI workload that identifies suspicious or anomalous patterns in transaction data to flag potential fraud. It typically uses anomaly detection (to spot outliers deviating from normal behavior) and classification models (e.g., logistic regression, random forest, or neural networks) to label transactions as legitimate or fraudulent in real time, enabling rapid intervention.

Answer

Generating synthetic fraudulent data to train security awareness training content

Answer

Verifying digital signatures on financial documents to confirm their authenticity

Answer

Encrypting financial data to prevent fraudsters from intercepting it

Question 15

What is 'AI inclusiveness' in Microsoft's Responsible AI principles?

Accepted Answer

Ensuring AI systems empower and benefit all people including those with disabilities and diverse demographics. Microsoft's Responsible AI principle of inclusiveness requires that AI systems are designed to empower and benefit all people, including those with disabilities and diverse demographics. This ensures that AI technologies do not discriminate or exclude groups based on ability, culture, or socioeconomic status, aligning with Microsoft's commitment to fairness and accessibility in AI.

Answer

Including all team members in the AI development process regardless of technical skill

Answer

Making AI models available to all organisations regardless of their budget

Answer

Including diverse training data sources to improve model accuracy