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100% Pass Quiz Microsoft - DP-800 Fantastic Vce Format

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Microsoft DP-800 Exam Syllabus Topics:

Topic
Details

Topic 1

Design and develop database solutions: This domain covers designing and building database objects such as tables, views, functions, stored procedures, and triggers, along with writing advanced T-SQL code and leveraging AI-assisted tools like GitHub Copilot and MCP for SQL development.

Topic 2

Implement AI capabilities in database solutions: This domain covers designing and managing external AI models and embeddings, implementing full-text, semantic vector, and hybrid search strategies, and building retrieval-augmented generation (RAG) solutions that connect database outputs with language models.

Topic 3

Secure, optimize, and deploy database solutions: This domain focuses on implementing data security measures like encryption, masking, and row-level security, optimizing query performance, managing CI
CD pipelines using SQL Database Projects, and integrating SQL solutions with Azure services including Data API builder and monitoring tools.

Microsoft Developing AI-Enabled Database Solutions Sample Questions (Q105-Q110):

NEW QUESTION # 105
Case Study 1 - Contoso
Existing Environment
Azure Environment
Contoso has an Azure subscription in North Europe that contains the corporate infrastructure.
The current infrastructure contains a Microsoft SQL Server 2017 database. The database contains the following tables.

The FeedbackJsoncolumn has a full-text index and stores JSON documents in the following format.

The support staff at Contoso never has the UNMASKpermission.
Problem Statements
Contoso is deploying a new Azure SQL database that will become the authoritative data store for the following:
* AI workloads
* Vector search
* Modernized API access
* Retrieval Augmented Generation (RAG) pipelines
Sometimes the ingestion pipeline fails due to malformed JSON and duplicate payloads.
The engineers at Contoso report that the following dashboard query runs slowly.

You review the execution plan and discover that the plan shows a clustered index scan.
VehicleIncidentReportsoften contains details about the weather, traffic conditions, and location. Analysts report that it is difficult to find similar incidents based on these details.
Requirements
Planned Changes
Contoso wants to modernize Fleet Intelligence Platform to support AI-powered semantic search over incident reports.
Security Requirements
Contoso identifies the following security requirements:
* Restrict the support staff from viewing Personally Identifiable Information (PII) data, which is full email addresses and phone numbers.
* Enforce row-level filtering so that analysts see only incidents for the fleets to which they are assigned. The analysts can be assigned to multiple fleets.
Database Performance and Requirements
Contoso identifies the following telemetry requirements:
* Telemetry data must be stored in a partitioned table.
* Telemetry data must provide predictable performance for ingestion and retention operations.
* latitude, longitude, and accuracyJSON properties must be filtered by using an index seek.
Contoso identifies the following maintenance data requirements:
* Ensure that any changes to a row in the MaintenanceEventstable updates the corresponding value in the LastModifiedUtccolumn to the time of the change.
* Avoid recursive updates.
AI Search, Embeddings, and Vector Indexing
Contoso plans to implement semantic search over incident data to meet the following requirements:
* Embeddings must be stored in dedicated Azure SQL Database tables.
* Embeddings must be generated from rich natural language fields.
* Chunking must preserve semantic coherence.
* Hybrid search must combine the following:
- Vector similarity
- Keyword filtering or boosting
Development Requirements
The development team at Contoso will use Microsoft Visual Studio Code and GitHub Copilot and will retrieve live metadata from the databases.
Contoso identifies the following requirements for querying data in the FeedbackJsoncolumn of the CustomerFeedbacktable:
* Extract the customer feedback text from the JSON document.
* Filter rows where the JSON text contains a keyword.
* Calculate a fuzzy similarity score between the feedback text and a known issue description.
* Order the results by similarity score, with the highest score first.
Hotspot Question
You need to meet the development requirements for the FeedbackJson column.
How should you complete the Transact-SQL query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

NEW QUESTION # 106
You have an Azure container app named app1-contoso-001 that hosts a Data API builder (DAB) container in front of an Azure SQL database.
You add an entity named Todo that uses a source named dbo.todos.
Which URL pattern should clients use to access the Todo REST endpoint?

A. https://appl-contoso-001.azurestaticapps.net/data-api/graphq1/Todo
B. https://appl-contoso-001.azurestaticapps.net/api/Todo
C. https://appl-contoso-001.azurestaticapps.net/data-api/Todo
D. https://appl-contoso-001.azurestaticapps.net/data-api/api/Todo

Answer: B

Explanation:
To access the REST endpoint for the Todo entity, clients should use the following URL pattern:
https://<your-container-app-url>/api/Todo
Base URL: The unique FQDN of your Azure Container App.
Path Prefix: By default, DAB uses /api for RESTful services.
Entity Name: You must use the Entity Name defined in the configuration (Todo), not the underlying source name (dbo.Todos).
Reference:
https://learn.microsoft.com/en-us/azure/container-apps/connect-apps

NEW QUESTION # 107
Which data type is used to store vector embeddings in SQL?

A. VARBINARY / VECTOR
B. DATE
C. INT
D. NVARCHAR

Answer: A

Explanation:
Embeddings are stored as arrays or binary/vector types depending on SQL engine support.

NEW QUESTION # 108
You have an Azure SQL database that contains a table named dbo.Products. dbo.Products contains three columns named Embedding, Category, and Price. The Embedding column is defined as VECTOR(1536).
You use AI_GENERATE_EMBEDDINGS and VECTOR_SEARCH to support semantic search and apply additional filters on two columns named Category and Price.
You plan to change the embedding model from text-embedding-ada-002 to text-embedding-3- small. Existing rows already contain embeddings in the Embedding column.
You need to implement the model change. Applications must be able to use VECTOR_SEARCH without runtime errors.
What should you do first?

A. Convert the Embedding column to nvarchar(max).
B. Regenerate embeddings for the existing rows.
C. Normalize the vector lengths before storing new embeddings.
D. Create a vector index on dbo.Products.Embedding.

Answer: D

Explanation:
To ensure your applications can transition models without runtime errors while using VECTOR_SEARCH, you must first define a Vector Index that explicitly identifies the dimensions and distance metric.
Since you are moving from text-embedding-ada-002 to text-embedding-3-small, both models default to 1536 dimensions, which matches your existing column definition. To create the index as the first step, use the following SQL:
CREATE VECTOR INDEX idx_embedding ON YourTableName (Embedding)
WITH ( DISTANCE_METRIC = 'COSINE' );
Use code with caution.
Why this works:
Schema Consistency: Because both models use 1536 dimensions, you don't need to alter the VECTOR(1536) column type immediately.
Search Stability: Creating the index allows the engine to optimize the VECTOR_SEARCH function. As long as the incoming query vector (generated by the app) matches the dimensions of the stored vectors, the search will execute without a runtime dimension mismatch error.
Reference:
https://docs.couchbase.com/cloud/n1ql/n1ql-language-reference/vectorfun.html

NEW QUESTION # 109
You have a Microsoft SQL Server 2025 instance that contains a database named SalesDB SalesDB supports a Retrieval Augmented Generation (RAG) pattern for internal support tickets. The SQL Server instance runs without any outbound network connectivity.
You plan to generate embeddings inside the SQL Server instance and store them in a table for vector similarity queries.
You need to ensure that only a database user account named AlApplicationUser can run embedding generation by using the model.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Create an external model project that points to a Microsoft Foundry REST endpoint.
B. Create a database audit specification on SalesDB owned by AlApplicationUser.
C. Create an external model project by using ONNX runtime and local paths.
D. Grant the execute permission on the external model project to AlApplicationUser.
E. Grant the control permission on SalesDB to AlApplicationUser.

Answer: C,D

Explanation:
Because the SQL Server 2025 instance has no outbound network connectivity , the embedding model cannot rely on a remote REST endpoint such as Azure AI Foundry or Azure OpenAI. Microsoft's CREATE EXTERNAL MODEL documentation includes a local deployment pattern using ONNX Runtime running locally with local runtime/model paths . That is the right design when embeddings must be generated inside the SQL Server instance without external network access. Microsoft explicitly documents a local ONNX Runtime example for SQL Server 2025 and notes the required local runtime setup and model path configuration.
The permission requirement is handled by granting the application user access to use the external embeddings model. Microsoft's AI_GENERATE_EMBEDDINGS documentation states that, as a prerequisite, you must create an external model of type EMBEDDINGS that is accessible via the correct grants, roles, and/or permissions . Among the choices, the exam-appropriate action is to grant execute permission on the external model project to AlApplicationUser so only that database user can run embedding generation through the model.

NEW QUESTION # 110
......

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