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Microsoft DP-300 exam covers a broad range of topics related to database administration on Azure. Administering Relational Databases on Microsoft Azure certification exam focuses on various aspects of database management, such as the creation and management of Azure SQL databases, data security and compliance, performance tuning, disaster recovery, and high availability. With DP-300 Exam, professionals can demonstrate their knowledge in managing and monitoring databases on Azure.

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Microsoft Administering Relational Databases on Microsoft Azure Sample Questions (Q319-Q324):

NEW QUESTION # 319
You have an Azure SQL database.
Users report that the executions of a stored procedure are slower than usual. You suspect that a regressed query is causing the performance issue.
You need to view the query execution plan to verify whether a regressed query is causing the issue. The solution must minimize effort.
What should you use?

A. Performance Recommendations in the Azure portal
B. Extended Events in Microsoft SQL Server Management Studio (SSMS)
C. Query Store in Microsoft SQL Server Management Studio (SSMS)
D. Query Performance Insight in the Azure portal

Answer: C

Explanation:
Use the Query Store Page in SQL Server Management Studio.
Query performance regressions caused by execution plan changes can be non-trivial and time consuming to resolve.
Since the Query Store retains multiple execution plans per query, it can enforce policies to direct the Query Processor to use a specific execution plan for a query. This is referred to as plan forcing. Plan forcing in Query Store is provided by using a mechanism similar to the USE PLAN query hint, but it does not require any change in user applications. Plan forcing can resolve a query performance regression caused by a plan change in a very short period of time.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/performance/monitoring-performance-by-using-the-query-store

NEW QUESTION # 320
You are building an Azure Stream Analytics job to retrieve game data.
You need to ensure that the job returns the highest scoring record for each five-minute time interval of each game.
How should you complete the Stream Analytics query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Reference:
https://docs.microsoft.com/en-us/stream-analytics-query/topone-azure-stream-analytics
https://github.com/MicrosoftDocs/azure-docs/blob/master/articles/stream-analytics/stream-analytics-window-functions.md

NEW QUESTION # 321
You are planning a solution that will use Azure SQL Database. Usage of the solution will peak from October 1 to January 1 each year.
During peak usage, the database will require the following:
* 24 cores
* 500 GB of storage
* 124 GB of memory
* More than 50,000 IOPS
During periods of off-peak usage, the service tier of Azure SQL Database will be set to Standard.
Which service tier should you use during peak usage?

A. Hyperscale
B. Business Critical
C. Premium

Answer: B

Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/resource-limits-vcore-single-databases#business-critic

NEW QUESTION # 322
You have an Azure SQL database named db1 on a server named server1.
The Intelligent Insights diagnostics log identifies queries that cause performance issues due to tempDB contention.
You need to resolve the performance issues.
What should you do?

A. Implement memory-optimized tables.
B. Run the dbcc flushprocindB command.
C. Replace the sequential index keys with nonsequential keys.
D. Run the dbcc dbreindex command.

Answer: A

Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/intelligent-insights-troubleshoot-performance#tempdb-contention

NEW QUESTION # 323
You have an Azure subscription that contains the resources shown in the following table.

You need to configure a connection between VM1 and MIL The solution must meet the following requirements:
* The connection must be encrypted.
* Network latency must be minimized.
What should you implement?

A. private endpoints
B. virtual network peering
C. service endpoints
D. a site-to-site VPN

Answer: A

NEW QUESTION # 324
......

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Microsoft Administering Relational Databases on Microsoft Azure Sample Questions (Q319-Q324):

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