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| Section | Objectives |
|---|---|
| Design and implement data solutions | - Design database solutions using Azure data services - Implement data storage and data processing solutions |
| Develop and manage database solutions | - Optimize performance and scalability - Ensure security and compliance of data solutions |
| Monitor, troubleshoot, and maintain solutions | - Monitoring database health and performance - Troubleshooting data pipeline issues |
| Integrate AI capabilities with database systems | - Implement AI-assisted data processing - Use Azure AI services with database workloads |
>> DP-800 Certification Test Questions <<
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NEW QUESTION # 94
Hotspot Question
You have a SQL database in Microsoft Fabric that contains a table named dbo.Products.
dbo.Products contains product catalog data.
You need to create a stored procedure that performs hybrid search. The solution must meet the following requirements:
- Use approximate nearest neighbor (ANN) to retrieve the top 20
candidate products.
- Re-rank only the candidates that also match a full-text query.
- Generate the query embedding.
How should you complete the Transact-SQL code? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION # 95
You have an Azure SQL database that contains a table named stores, stores contains a column named description and a vector column named embedding.
You need to implement a hybrid search query that meets the following requirements:
* Uses full-text search on description for the keyword portion
* Returns the top 20 results based on a combined score that uses a weighted formula of 60% vector distance and 40% full-text rank How should you configure the query components? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
For the vector portion, the correct choice is VECTOR_DISTANCE and order by distance ascending . The requirement is to build a combined weighted formula using the actual vector distance. Microsoft documents that VECTOR_DISTANCE returns the exact distance between two vectors. Since lower distance means greater similarity, ascending distance is the right direction for ranking. VECTOR_SEARCH is for ANN retrieval, but this hotspot specifically asks for a weighted formula based on distance , so VECTOR_DISTANCE is the appropriate operator.
For the keyword portion, the correct choice is CONTAINSTABLE on description and return ranked matches . Microsoft documents that CONTAINSTABLE returns a RANK column from 0 through 1000 , which is exactly what is needed for weighted scoring in a hybrid formula.
For the final ranking expression, the best choice is order by (distance * 0.6) + ((1.0 - RANK/1000.0) * 0.4) .
This works because vector distance is a lower-is-better metric, while full-text RANK is a higher-is-better metric. Dividing RANK by 1000 normalizes it to the documented range, and subtracting from 1.0 converts it into a lower-is-better term so both components can be combined consistently in one ascending score. This final step is a sound inference based on Microsoft's documented distance semantics and full-text rank range.
NEW QUESTION # 96
You create an SDK-style SQL database project in Microsoft Visual Studio Code named Database.sqlproj and add the project to a GitHub repository.
You need to configure a GitHub Actions workflow to support the planned changes for DB1.
How should you complete the workflow? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
* pull_request
* build Database.sqlproj -c Release
The correct configuration is pull_request with dotnet build Database.sqlproj -c Release.
Fabrikam requires every pull request targeting production to be validated before merging, and all deployments must use the Release configuration.
Technical breakdown:
1. pull_request trigger: Executes the GitHub Actions workflow when a pull request targets the main branch.
This allows SQL project validation before changes are merged.
2. dotnet build: Compiles the SDK-style SQL database project, validates its database schema model, and produces a .dacpac deployment artifact.
3. -c Release: Explicitly selects the Release build configuration, satisfying Fabrikam ' s deployment configuration requirement.
4. Branch protection: Configure GitHub branch protection rules to make successful validation a required status check before merging. The workflow alone does not enforce this restriction.
5. Incorrect alternatives: push runs after changes are pushed, while merge is not a valid GitHub Actions event.
dotnet pack packages projects, and dotnet publish is not the appropriate SQL project validation command.
Microsoft identifies dotnet build as the supported compilation method for SDK-style SQL projects.
Completed GitHub Actions workflow
name: Validate SQL Project
on:
pull_request:
branches: [ " main " ]
jobs:
validate:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Step 1
run: dotnet build Database.sqlproj -c Release
DP-800 Official Study Guide Reference:
Main topic: Secure, optimize, and deploy database solutions.
Subtopic: Implement CI/CD by using SQL Database Projects.
Specific examination objectives:
* Create, build, and validate database models by using SQL Database Projects, including SDK-style models.
* Manage branching, pull requests, and conflict resolution.
* Design and implement controls for deployment pipelines.
NEW QUESTION # 97
Hotspot Question
You have a SQL database in Microsoft Fabric that contains the following functions:
- A multi-statement table-valued function (TVF) named
Sales.mstvf_OrderStatus() that returns order status information
- A scalar user-defined function (UDF) named dbo.ufn_GetTaxMultiplier
(@TaxAmt money, @StateCode char(2)) that returns a numeric multiplier
used in tax calculations
Reporting queries frequently join Sales.mstvf_OrderStatus() to a table named Sales.SalesOrderHeader and return large result sets. A performance review shows that the queries produce inconsistent execution plans.
During a code review, a developer discovers that the following Transact-SQL statement produced an error.
EXEC @ret = ufn_GetTaxMultiplier @TaxAmt = 100.00, @StateCode = 'WA';
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION # 98
You have an Azure SQL database that supports the OLTP workload of an order-processing application.
During a 10-minute incident window, you run a dynamic management view query and discover the following:
Session 72 is sleeping with open_transaction_count = 1.
Multiple other sessions show blocking_session_id = 72 in sys.dm_exec_requests.
sys.dm_exec_input_buffer(72, NULL) returns only BEGIN TRANSACTION UPDATE Sales.Orders.
Users report that updates to Sales.Orders intermittently time out during the incident window. The timeouts stop only after you manually terminate session 72.
What is a possible cause of the blocking?
Answer: A
NEW QUESTION # 99
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