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Microsoft DP-300 Exam Dumps


Exam Code: DP-300
Exam Name: Administering Relational Databases on Microsoft Azure

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Microsoft DP-300 Exam Questions


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Administering Relational Databases on Microsoft Azure Exams
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DP-300 Exam Sample Questions:



You have an Azure SQL database.
You have a query and the associated execution plan as shown in the following exhibit.

Use the drop-down menus to select the answer choice that completes each statement
based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.

 

Expalantion:-

Graphical user interface, text, application, email
Description automatically generated
Box 1: Key Lookup
The Key Lookup cost is 99% so that is the performance bottleneck.
Box 2: nonclustered index
The key lookup on the clustered index is used because the nonclustered index  does not include the required columns to resolve the query. If you add the required columns to the
nonclustered index, the key lookup will not be required.




You have an Azure subscription that contains a logical SQL server named Serverl. The
master database of Serverl contains a user named Userl. You need to ensure that Userl
can create databases on Serverl. Which database role should you assign to Userl?

 

db_owner

 

dbmanager

 

dbo

 

db_ddladmin


dbmanager





You have SQL Server on an Azure virtual machine.
You need to add a 4-TB volume that meets the following requirements:
Maximizes IOPs
Uses premium solid state drives (SSDs)
What should you do?

 

Attach two mirrored 4-TB SSDs

 

Attach a stripe set that contains four 1-TB SSDs.

 

Attach a RAID-5 array that contains five 1-TB SSDs.

 

Attach a single 4-TB SSD.


Attach a stripe set that contains four 1-TB SSDs.


https://docs.microsoft.com/en-us/azure/azure-sql/virtual-machines/windows/storageconfiguration?
tabs=windows2016




You have an Azure subscription that contains an Azure SQL database named SQL1.
SQL1 is in an Azure region that does not support availability zones.
You need to ensure that you have a secondary replica of SQLI in the same region.
What should you use?

 

log shipping

 

auto-failover groups

 

active geo-replication

 

Microsoft SQL Server failover clusters


active geo-replication





You have an Azure SQL Database managed instance.
The instance starts experiencing performance issues.
You need to identify which query is causing the issue and retrieve the execution plan for
the query. The solution must minimize administrative effort.

What should you use?

 

the Azure portal

 

Extended Events

 

Query Store

 

dynamic management views


Query Store


https://docs.microsoft.com/en-us/sql/relational-databases/performance/monitoringperformance-
by-using-the-query-store?view=sql-server-ver15


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