AI-102 Plan and manage an Azure AI solution — Timed 40 Questions

Question 1

Refer to the exhibit. A developer creates an agent in Azure AI Foundry with a code_interpreter tool. The agent is supposed to generate plots but returns errors. What is the most likely cause?

Accepted Answer

The JSON syntax is incorrect. The code_interpreter tool in Azure AI Foundry supports common Python visualization libraries such as Matplotlib, Seaborn, and Plotly. Therefore, the error is not due to lack of visualization support. The most likely cause is incorrect JSON syntax in the agent's tool configuration or function call, as JSON formatting errors are a frequent source of failures in Azure AI Foundry agents.

Answer

The instructions are too generic

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The code interpreter tool does not support visualization libraries

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The agent name is invalid

Question 2

You are designing an Azure AI solution that uses Azure AI Language to analyze customer support transcripts. The solution must identify key phrases, detect sentiment, and extract custom entities specific to your product catalog. Which two Azure AI Language features should you enable?

Accepted Answer

Key Phrase Extraction. Key Phrase Extraction (Option B) is correct because it identifies the main points and important terms in customer support transcripts, such as 'refund request' or 'account issue,' which directly supports analyzing the content. Custom Entity Extraction (Option D) is correct because it allows you to define and extract domain-specific entities from your product catalog, such as product names or model numbers, using a trained custom entity extraction model. Together, these two features enable both general insight extraction and tailored, product-specific data extraction from the transcripts.

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PII Detection

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Summarization

Question 3

You are planning an Azure AI solution that uses Azure AI Document Intelligence to extract data from scanned PDFs. The solution must support both structured and unstructured documents. The extracted data must be validated against a predefined schema before being stored in Azure Cosmos DB. What should you use for schema validation?

Accepted Answer

Azure AI Document Intelligence custom extraction model with a defined schema.. Azure AI Document Intelligence custom extraction models allow you to define a schema (field names, types, and relationships) that the service uses to extract data. The model enforces this schema during extraction—only fields defined in the schema are extracted, and missing fields are returned as null—effectively validating the extracted data against your predefined structure before it is stored in Azure Cosmos DB. This built-in constraint eliminates the need for additional validation logic.

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Azure Functions to parse and validate the extracted data.

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Azure AI Document Intelligence prebuilt model for invoices.

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Azure Logic Apps with a JSON schema validation step.

Question 4

You are deploying an Azure AI Speech custom voice model. After training, the voice sounds unnatural. Which parameter should you adjust to improve naturalness?

Accepted Answer

Use a different language for the training data. Using a different language for the training data (Option D) is necessary when the training language does not match the target voice language, leading to unnatural prosody and pronunciation. Azure AI Speech custom neural voice requires the training data to be in the same language as the desired voice. If a mismatch occurs, switching to the correct language data will significantly improve naturalness.

Answer

Change the audio output format to 48 kHz

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Increase the speaking rate

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Increase the training duration

Question 5

Which TWO of the following are valid ways to authenticate to Azure AI services?

Accepted Answer

Subscription key (API key). Azure AI services support two primary authentication methods: subscription keys (API keys) and Microsoft Entra ID tokens. Subscription keys are simple and used for development and testing, passed in the 'Ocp-Apim-Subscription-Key' header. Managed Identity is Azure's recommended authentication method for services running in Azure, automatically obtaining a Microsoft Entra ID token without managing credentials. While OAuth 2.0 client credentials flow is also valid and uses Microsoft Entra ID, it requires manual credential management and is less commonly used directly with AI services compared to Managed Identity. Shared access signature (SAS) tokens are for Azure Storage, not AI services. X.509 certificates are not supported for direct authentication to Azure AI services.

Answer

Shared access signature (SAS) token

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OAuth 2.0 client credentials flow with Microsoft Entra ID

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X.509 certificate

Question 6

A company plans to deploy an Azure AI solution that processes sensitive customer data. The solution must comply with GDPR and ensure data residency within the European Union. Which Azure resource configuration should be used?

Accepted Answer

Create an Azure AI services resource in a specific EU region and set the data residency option to 'EU'.. Azure AI services allow you to specify a data residency option when creating the resource in a specific EU region, ensuring that all customer data remains within the European Union as required by GDPR. This configuration explicitly restricts data processing and storage to the chosen geographic boundary, meeting compliance and residency mandates.

Answer

Deploy the Azure AI services in multiple regions globally and use geo-replication.

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Use the Azure AI services 'Data Residency' SKU.

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Use the Free tier of Azure AI services.

Question 7

You need to monitor costs for an Azure AI solution that uses multiple Azure AI services. Which Azure tool should you use to set budgets and receive alerts?

Accepted Answer

Azure Cost Management. Azure Cost Management is the dedicated Azure tool for setting budgets, defining cost thresholds, and configuring alerts when spending exceeds those limits. It provides detailed cost analysis, forecasting, and policy enforcement across all Azure services, including AI services like Cognitive Services and Azure Machine Learning.

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Azure Advisor

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Azure Monitor

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Azure Service Health

Question 8

A company is deploying a custom vision model using Azure Custom Vision. The training data contains images with varying resolutions. The model must achieve high accuracy. Which pre-processing step should be applied to the images before training?

Accepted Answer

Resize all images to the same dimensions (e.g., 224x224).. Custom Vision models use a fixed input size (e.g., 224x224 for ResNet-based architectures). Images with varying resolutions must be resized to the same dimensions before training to ensure consistent tensor shapes for the neural network. Without this step, the model cannot process the data correctly, leading to training failures or degraded accuracy.

Answer

Convert images to grayscale.

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Normalize pixel values to a range of 0-1.

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Apply data augmentation techniques like random cropping.

Question 9

You are designing an Azure AI solution that uses Language Understanding (LUIS) for intent detection. The solution must handle multiple languages dynamically based on the user's locale. What should you do?

Accepted Answer

Create separate LUIS applications for each language and route based on locale.. LUIS does not natively support multi-language within a single application; each LUIS app is designed for a single language. To handle multiple languages dynamically, you must create separate LUIS applications for each language and route user utterances based on the detected locale, ensuring accurate intent and entity recognition per language.

Answer

Use Azure Translator to translate user input to English before sending to LUIS.

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Train a single LUIS app with utterances in all languages.

Answer

Enable the 'Multi-Language' feature in the LUIS app.

Question 10

A company wants to use Azure AI services to extract text from scanned PDF documents. Which Azure AI service should they use?

Accepted Answer

Azure AI Document Intelligence. Azure AI Document Intelligence (formerly Form Recognizer) is the correct service because it is specifically designed for extracting text, tables, and key-value pairs from scanned PDFs and images using optical character recognition (OCR) and deep learning models. Unlike general OCR APIs, Document Intelligence can handle complex layouts and preserve document structure, making it ideal for this use case.

Answer

Azure AI Language Understanding (LUIS)

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Azure AI Computer Vision API

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Azure Cognitive Search

Question 11

You are deploying an Azure AI solution that uses Azure OpenAI Service. The solution must be deployed in a way that minimizes latency for users in Asia. However, the company's data residency policy requires data to stay in the United States. What should you do?

Accepted Answer

Deploy the service in a US region and use Azure Front Door with caching to reduce latency.. It satisfies both requirements: data residency (deploying in a US region keeps data within the United States) and latency reduction for Asian users. Azure Front Door with caching stores frequently accessed model responses at edge locations closer to users in Asia, minimizing round-trip time without moving the origin data.

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Use Azure CDN to cache the model responses in Asia.

Answer

Deploy the Azure OpenAI Service in an Asian region and use Azure Front Door to route traffic.

Answer

Deploy the service in multiple regions globally and use Traffic Manager for routing.

Question 12

You have an Azure AI solution that uses Azure AI Language to perform sentiment analysis. The solution is experiencing high latency. Which action should you take to reduce latency?

Accepted Answer

Scale the service by increasing the number of instances or using a higher pricing tier.. Scaling the Azure AI Language service by increasing the number of instances or moving to a higher pricing tier (e.g., from Standard S0 to a tier with higher throughput) directly addresses high latency by providing more capacity to handle concurrent requests. High latency often results from hitting the service's rate limits or throughput constraints, and scaling alleviates this bottleneck without changing the underlying architecture.

Answer

Move the service to a different Azure region.

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Use the Free tier of the Azure AI Language service.

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Increase the request timeout value.

Question 13

A company needs to implement a chatbot that answers customer queries using a knowledge base. Which Azure AI service should be used to build the knowledge base?

Accepted Answer

Azure AI Language (Question Answering). Azure AI Language's Question Answering feature is specifically designed to create a knowledge base from structured or unstructured content (e.g., FAQs, product manuals, support documents). It uses a custom question-answering model that can be trained and published as a REST API endpoint, which a chatbot can then query to retrieve precise answers. This makes it the correct service for building the knowledge base itself.

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Azure Bot Service

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Azure AI Translator

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Azure AI Speech

Question 14

A company is planning to use Azure AI Document Intelligence to extract data from invoices. The solution must handle variations in invoice formats. Which TWO actions should be taken to improve accuracy?

Accepted Answer

Include samples of different layouts in the training set.. Including samples of different invoice layouts in the training set enables the custom model to learn variations in structure, field placement, and formatting. This improves the model's ability to generalize across diverse invoice formats, reducing extraction errors. Azure AI Document Intelligence custom models require labeled training data to adapt to specific document types, and diverse samples directly address format variability.

Answer

Avoid using custom models; rely on prebuilt models only.

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Use a large number of unlabeled samples.

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Use a single prebuilt model for all invoices.

Question 15

Which THREE factors should be considered when choosing a region for deploying Azure AI services?

Accepted Answer

Service availability and feature support.. Service availability and feature support (Option B) is a critical factor because not all Azure AI services are available in every region; for example, certain Cognitive Services like Azure OpenAI or Computer Vision OCR may be in preview or fully supported only in specific regions. Choosing a region without the required service or feature would prevent deployment or limit functionality, directly impacting solution design.

Answer

Number of Azure data centers in the region.

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Cost of the services in each region.

Question 16

You are deploying an Azure AI solution that uses multiple services. You need to manage access keys securely. Which TWO methods should you use?

Accepted Answer

Use Azure Key Vault to store the keys.. Azure Key Vault is the recommended service for securely storing and managing access keys, secrets, and certificates. By storing AI service keys in Key Vault, you centralize secret management, control access via Azure RBAC, and avoid hardcoding credentials in code or configuration files. This aligns with the principle of least privilege and reduces the risk of accidental exposure.

Answer

Embed the keys directly in application code.

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Store keys in Azure App Configuration.

Answer

Use Key Vault's automatic key rotation feature.

Question 17

You are an Azure AI engineer at Contoso Ltd. The company has an Azure AI solution that uses Azure AI Language to analyze customer feedback. The solution is deployed in the East US region and uses the S0 pricing tier. Recently, the volume of feedback has increased significantly, causing the service to throttle requests. The application logs show HTTP 429 (Too Many Requests) errors during peak hours. The development team has already implemented retry logic with exponential backoff, but the errors persist. You need to recommend a solution to handle the increased load without changing the application code. The solution must minimize cost. What should you do?

Accepted Answer

Upgrade the Azure AI Language resource to a higher pricing tier (e.g., S1) or create additional resources and load balance.. Upgrading to a higher pricing tier (e.g., S1) increases the transactions-per-second (TPS) limit, directly addressing the HTTP 429 throttling errors without requiring code changes. Creating additional resources and load-balancing also distributes the request volume, but upgrading the existing resource is the simplest and most cost-effective approach when retry logic already fails.

Answer

Use Azure Front Door to cache responses and reduce load on the service.

Answer

Switch the Azure AI Language resource to the Free tier to reduce costs.

Answer

Move the service to a different Azure region with higher capacity.

Question 18

You are an Azure AI engineer at Fabrikam Inc. The company has developed a custom vision model using Azure Custom Vision to detect defects on a manufacturing assembly line. The model is deployed as a Docker container to an on-premises edge device using Azure IoT Edge. Recently, the model's inference accuracy has decreased. The operations team reports that the edge device is running low on memory and CPU. The model was trained with images from a specific camera angle, but the camera angle has been changed slightly due to maintenance. You need to improve the model's accuracy. What should you do?

Accepted Answer

Retrain the model with new images captured from the current camera angle.. The decrease in accuracy is most likely due to the change in camera angle, which introduces a domain shift between the training images and the new inference images. Retraining the model with images captured from the current camera angle will realign the training data distribution with the production environment, directly addressing the root cause of the accuracy drop. This is a standard practice in Custom Vision when deployment conditions change.

Answer

Upgrade the edge device to have more memory and CPU.

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Reduce the image resolution to lower memory usage.

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Convert the model to use grayscale images.

Question 19

A company is deploying an Azure AI solution that uses Azure Cognitive Services. The solution must comply with data residency requirements that mandate all customer data be stored within a specific geographic region. Which action should the company take when creating the Cognitive Services resource?

Accepted Answer

Select the appropriate region during resource creation.. Data residency requirements are satisfied by physically storing customer data within a specific geographic boundary. When creating an Azure Cognitive Services resource, selecting the appropriate region (e.g., 'West Europe' or 'East US') during the provisioning process ensures that all data processed and stored by that service instance remains within that Azure datacenter region. This is the fundamental and only guaranteed method to enforce data residency at the resource level.

Answer

Apply a resource tag that specifies the region.

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Configure the endpoint URL to point to a regional endpoint.

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Set the SKU to a tier that supports regional restrictions.

Question 20

A developer is building a chatbot using Azure Bot Service and Language Understanding (LUIS). The bot needs to handle multiple intents, including 'BookFlight', 'CancelFlight', and 'CheckWeather'. During testing, the bot frequently confuses 'BookFlight' and 'CancelFlight' intents. What is the most effective way to improve intent classification accuracy?

Accepted Answer

Add more varied training utterances for 'BookFlight' and 'CancelFlight' intents.. Adding more varied training utterances for the 'BookFlight' and 'CancelFlight' intents directly addresses the root cause of confusion: insufficient or overlapping training data. LUIS relies on diverse utterance patterns to distinguish between semantically similar intents; increasing the quantity and variety of labeled examples improves the model's ability to learn discriminative features, thereby boosting classification accuracy.

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Reduce the number of intents by merging similar ones.

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Increase the confidence threshold for intent predictions.

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Add more entities to the utterances.