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| Section | Weight | Objectives |
|---|---|---|
| Optimize generative AI systems and model performance | 15–20% | - Improve efficiency and cost-effectiveness
|
| Implement machine learning model lifecycle and operations | 25–30% | - Register, version, and package models
|
| Implement generative AI quality assurance and observability | 10–15% | - Evaluate and test generative AI applications
|
| Design and implement an MLOps infrastructure | 15–20% | - Implement infrastructure as code for Machine Learning
|
| Design and implement a GenAIOps infrastructure | 20–25% | - Set up Microsoft Foundry environment
|
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NEW QUESTION # 105
A team deploys a model to a real-time endpoint in Azure Machine Learning. You deploy some updates to the endpoint.
The endpoint returns errors after the new deployment is released.
You need to restore the service as quickly as possible.
What should you do first?
Answer: A
Explanation:
Speed of recovery is the central requirement. Rolling back traffic to the previous deployment is the fastest possible action: because the previous deployment still exists on the same endpoint, you simply update the traffic weights - setting the old deployment to 100% and the new deployment to 0% - using a single Azure ML CLI command or SDK call that completes in seconds without reprovisioning any compute. Deleting and redeploying (option B) requires tearing down the endpoint, waiting for deprovisioning, recreating it, re- deploying the model, and waiting for containers to start - potentially 10 to 30 minutes. Changing authentication type (option C) does not affect application errors caused by a bad model. Increasing compute size (option D) does not fix model logic errors. The entire reason Azure ML supports multiple concurrent deployments with traffic splitting is precisely to enable this instant rollback pattern.
Microsoft Learn Reference Topic: Roll back deployments on managed online endpoints - Azure Machine Learning safe deployment practices
NEW QUESTION # 106
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear on the review screen.
You manage a Retrieval-Augmented Generation (RAG) application built on Microsoft Foundry.
The application retrieves documents from an indexed knowledge base and generates answers for internal users.
Recent feedback indicates that answers are fluent but sometimes include information that is not supported by the documents that were retrieved.
You need to evaluate whether a proposed change improves RAG answer quality by using supported and measurable techniques.
Solution: Review user feedback comments collected after deployment to determine whether answers appear more accurate.
Does the solution meet the goal?
Answer: B
Explanation:
Correct:
* Review user feedback comments collected after deployment to determine whether answers appear more accurate.
Relying solely on user feedback comments is not the proper immediate action for evaluating this specific issue but it is still the best choice.
Evaluate whether your proposed change improves the Retrieval-Augmented Generation (RAG) system by reducing hallucinations (unsupported information), you need to measure faithfulness and context relevance using automated, quantifiable metrics.
The proper course of action is to implement an LLM-as-a-Judge framework using an open-source evaluation library like Ragas or TruLens.
Recommended Evaluation Plan
Establish a baseline: Run your current RAG pipeline through a test dataset of 50-100 representative user queries.
Capture the outputs: Save the user query, the exact retrieved document snippets, and the generated response for every test.
Apply the change: Deploy your proposed modification (e.g., altered prompt, different temperature, or re-ranking algorithm).Run the evaluation: Pass the test dataset through the updated pipeline to generate a new set of responses.
Compare the metrics: Use the framework to score both sets of data and mathematically verify if the change reduced unsupported claims.
Incorrect:
* Compare embedding vector dimensions used by the retrieval pipeline before and after the change.
Comparing embedding vector dimensions is not a valid or effective method for measuring RAG answer quality. Vector dimensions (e.g., 1536 or 3072) are static architectural properties of your embedding model. They do not reflect factual accuracy, semantic grounding, or the rate of hallucinations in your text generation.
* Measure token throughput and average response latency before and after applying the proposed change.
Measuring token throughput and latency is not the correct action to solve this specific problem.
Reference:
https://www.getmaxim.ai/articles/how-to-evaluate-your-rag-system/
NEW QUESTION # 107
A team uses a hosted Git repository to store training code and pipeline definitions of a machine learning experiment.
The team must ensure that access to the repository is granted without requiring each developer to store personal access tokens on their machines.
Repository access must be secure and centrally managed to reduce credential spread.
You need to enable secure access between an Azure Machine Learning workspace and the repository.
What should you do?
Answer: A
Explanation:
Configuring the workspace to use a managed identity (or a centralized service principal/workspace identity) is the correct approach to securely and centrally manage repository access without spreading personal access tokens.
No Developer Credentials: Developers do not need to generate, share, or store personal access tokens (PATs) on their local machines.
Centralized Management: Access permissions are bound to the cloud workspace resource rather than individual user accounts.
Reduced Credential Spreading: Eliminates the risk of leaked tokens when team members leave or compromise local workstations.
Reference:
https://learn.microsoft.com/en-us/azure/machine-learning/how-to-identity-based-service-authentication
NEW QUESTION # 108
A team uses a hosted Git repository to store training code and pipeline definitions of a machine learning experiment.
The team must ensure that access to the repository is granted without requiring each developer to store personal access tokens on their machines.
Repository access must be secure and centrally managed to reduce credential spread.
You need to enable secure access between an Azure Machine Learning workspace and the repository.
Answer: B
Explanation:
A managed identity is the appropriate credential model when an Azure-hosted workload requires centrally controlled, non-user authentication to another service that supports Microsoft Entra identities. Managed identities eliminate developer-managed credentials because Azure manages the identity lifecycle and obtains short-lived Microsoft Entra tokens at runtime. Microsoft explicitly identifies managed identities as a mechanism for Azure-hosted applications to authenticate without storing credentials, and Azure DevOps supports managed identities for secure automation and repository-related access.
This satisfies the key MLOps security requirement: authentication is associated with the workload rather than individual developers. Administrators can grant the identity only the required repository permissions, enforcing least privilege while centralizing authorization. Microsoft also recommends Microsoft Entra-based authentication over higher-risk PAT-based approaches for Azure Repos.
Option A spreads a reusable private credential among developers and creates unnecessary exposure. Option B still introduces a PAT that must be stored, protected, rotated, and revoked. Option C depends on individual interactive authentication and is unsuitable for reliable automated MLOps workflows. Microsoft documents managed identities and workload identities as approaches that eliminate persistent secrets and reduce credential-management overhead.
Study Guide Reference: Design and implement an MLOps infrastructure - source-control integration, workload authentication, managed identities, least-privilege access, and credential management.
NEW QUESTION # 109
A real-time endpoint experiences sporadic latency spikes. Investigation reveals instances scale down to zero during inactivity. You need to reduce latency without significantly increasing cost.
What should you configure?
Answer: B
Explanation:
Cold starts occur when instances scale down to zero and must restart to handle new requests.
Setting a minimum instance count ensures that at least one instance is always running, reducing latency spikes. Increasing timeouts does not address the root cause of cold start delays.
NEW QUESTION # 110
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