DP-300試験無料問題集「Microsoft Administering Relational Databases on Microsoft Azure 認定」
You have 10 Azure virtual machines that have SQL Server installed.
You need to implement a backup strategy to ensure that you can restore specific databases to other SQL Server instances. The solution must provide centralized management of the backups.
What should you include in the backup strategy?
You need to implement a backup strategy to ensure that you can restore specific databases to other SQL Server instances. The solution must provide centralized management of the backups.
What should you include in the backup strategy?
正解：A
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You have an Azure subscription that uses a domain named contoso.com.
You have two Azure VMs named DBServer1 and DBServer2. Each of them hosts a default SQL Server instance. DBServer1 is in the East US Azure region and contains a database named DatabaseA. DBServer2 is in the West US Azure region.
DBServer1 has a high volume of data changes and low latency requirements for data writes.
You need to configure a new availability group for DatabaseA. The secondary replica will reside on DBServer2.
What should you do?
You have two Azure VMs named DBServer1 and DBServer2. Each of them hosts a default SQL Server instance. DBServer1 is in the East US Azure region and contains a database named DatabaseA. DBServer2 is in the West US Azure region.
DBServer1 has a high volume of data changes and low latency requirements for data writes.
You need to configure a new availability group for DatabaseA. The secondary replica will reside on DBServer2.
What should you do?
正解：C
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解説: (GoShiken メンバーにのみ表示されます)
You have SQL Server on an Azure virtual machine that contains a database named DB1.
The database reports a CHECKSUM error.
You need to recover the database.
How should you complete the statements? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
The database reports a CHECKSUM error.
You need to recover the database.
How should you complete the statements? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
正解：
Explanation:
Box 1: SINGLE_USER
The specified database must be in single-user mode to use one of the following repair options.
Box 2: REPAIR_ALLOW_DATA_LOSS
REPAIR_ALLOW_DATA_LOSS tries to repair all reported errors. These repairs can cause some data loss.
Note: The REPAIR_ALLOW_DATA_LOSS option is a supported feature but it may not always be the best option for bringing a database to a physically consistent state. If successful, the REPAIR_ALLOW_DATA_LOSS option may result in some data loss. In fact, it may result in more data lost than if a user were to restore the database from the last known good backup.
Reference:
https://docs.microsoft.com/en-us/sql/t-sql/database-console-commands/dbcc-checkdb-transact-sql
You have a Microsoft SQL Server 2019 database named DB1 that uses the following database-level and instance-level features.
* Clustered columnstore indexes
* Automatic tuning
* Change tracking
* PolyBase
You plan to migrate DB1 to an Azure SQL database.
What feature should be removed or replaced before DB1 can be migrated?
* Clustered columnstore indexes
* Automatic tuning
* Change tracking
* PolyBase
You plan to migrate DB1 to an Azure SQL database.
What feature should be removed or replaced before DB1 can be migrated?
正解：D
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You have SQL Server 2019 or an Azure virtual machine that runs Windows Server 2019. The virtual machine has 4 vCPUs and 28 GB of memory.
Vou scale up the virtual machine to 8 vCPUs and 64 GB of memory.
You need to reduce tempdb contention without regatively affecting server performance.
What is the number of secondary data files that you should configure for tempdb?
Vou scale up the virtual machine to 8 vCPUs and 64 GB of memory.
You need to reduce tempdb contention without regatively affecting server performance.
What is the number of secondary data files that you should configure for tempdb?
正解：A
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You have SQL Server on an Azure virtual machine named SQL1.
SQL1 has an agent job to back up all databases.
You add a user named dbadmin1 as a SQL Server Agent operator.
You need to ensure that dbadmin1 receives an email alert if a job fails.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
SQL1 has an agent job to back up all databases.
You add a user named dbadmin1 as a SQL Server Agent operator.
You need to ensure that dbadmin1 receives an email alert if a job fails.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
正解：
Explanation:
Step 1: Enable the email settings for the SQL Server Agent.
To send a notification in response to an alert, you must first configure SQL Server Agent to send mail.
Step 2: Create a job alert
Step 3: Create a job notification
Example:
-- adds an e-mail notification for the specified alert (Test Alert)
-- This example assumes that Test Alert already exists
-- and that Francois Ajenstat is a valid operator name.
USE msdb ;
GO
EXEC dbo.sp_add_notification
@alert_name = N'Test Alert',
@operator_name = N'Francois Ajenstat',
@notification_method = 1 ;
GO
Reference:
https://docs.microsoft.com/en-us/sql/ssms/agent/notify-an-operator-of-job-status
https://docs.microsoft.com/en-us/sql/ssms/agent/assign-alerts-to-an-operator
You have an Azure subscription.
You plan to deploy a new Azure virtual machine that will host a Microsoft SQL Server instance.
You need to configure the disks on the virtual machine. The solution must meet the following requirements:
* Minimize latency for transaction logs.
* Minimize the impact on IO Of the virtual machine.
Which type of disk should you use for each workload? To answer. drag the appropriate disk types to the correct workloads. Each disk type may be used once, at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
You plan to deploy a new Azure virtual machine that will host a Microsoft SQL Server instance.
You need to configure the disks on the virtual machine. The solution must meet the following requirements:
* Minimize latency for transaction logs.
* Minimize the impact on IO Of the virtual machine.
Which type of disk should you use for each workload? To answer. drag the appropriate disk types to the correct workloads. Each disk type may be used once, at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
正解：
Explanation:
You have a SQL Server on Azure Virtual Machines instance named SQLVM1 that contains two databases named DB1 and DB2. The database and log files for DB1 and DB2 are hosted on managed disks.
You need to perform a snapshot backup of DB1 and DB2
How should you complete the I SQL statements? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You need to perform a snapshot backup of DB1 and DB2
How should you complete the I SQL statements? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
正解：
Explanation:
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 in the review screen.
You have two Azure SQL Database servers named Server1 and Server2. Each server contains an Azure SQL database named Database1.
You need to restore Database1 from Server1 to Server2. The solution must replace the existing Database1 on Server2.
Solution: From Microsoft SQL Server Management Studio (SSMS), you rename Database1 on Server2 as Database2. From the Azure portal, you create a new database on Server2 by restoring the backup of Database1 from Server1, and then you delete Database2.
Does this meet the goal?
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 in the review screen.
You have two Azure SQL Database servers named Server1 and Server2. Each server contains an Azure SQL database named Database1.
You need to restore Database1 from Server1 to Server2. The solution must replace the existing Database1 on Server2.
Solution: From Microsoft SQL Server Management Studio (SSMS), you rename Database1 on Server2 as Database2. From the Azure portal, you create a new database on Server2 by restoring the backup of Database1 from Server1, and then you delete Database2.
Does this meet the goal?
正解：A
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You have a SQL Server on Azure Virtual Machines instance that hosts a database named Db1.
You need to configure the autogrow and autoshrink settings for DB1.
Which statements should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You need to configure the autogrow and autoshrink settings for DB1.
Which statements should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
正解：
Explanation:
https://learn.microsoft.com/en-us/troubleshoot/sql/admin/considerations-autogrow-autoshrink
You have an Azure SQL database named that contains a table named Table1.
You run a query to bad data into Table1.
The performance Of Table1 during the load operation are shown in exhibit.
You run a query to bad data into Table1.
The performance Of Table1 during the load operation are shown in exhibit.
正解：
Explanation:
You have an Azure virtual machine named VM1 on a virtual network named VNet1. Outbound traffic from VM1 to the internet is blocked.
You have an Azure SQL database named SqlDb1 on a logical server named SqlSrv1.
You need to implement connectivity between VM1 and SqlDb1 to meet the following requirements:
* Ensure that VM1 cannot connect to any Azure SQL Server other than SqlSrv1.
* Restrict network connectivity to SqlSrv1.
What should you create on VNet1?
You have an Azure SQL database named SqlDb1 on a logical server named SqlSrv1.
You need to implement connectivity between VM1 and SqlDb1 to meet the following requirements:
* Ensure that VM1 cannot connect to any Azure SQL Server other than SqlSrv1.
* Restrict network connectivity to SqlSrv1.
What should you create on VNet1?
正解：C
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You have an Azure virtual machine named Server1 that has Microsoft SQL Server installed. Server1 contains a database named DB1.
You have a logical SQL server named ASVR1 that contains an Azure SQL database named ADB1.
You plan to use SQL Data Sync to migrate DB1 from Server! to ASVR1.
You need to prepare the environment for the migration. The solution must ensure that the connection from Server1 to ADB1 does NOT use a public endpoint.
What should you do? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You have a logical SQL server named ASVR1 that contains an Azure SQL database named ADB1.
You plan to use SQL Data Sync to migrate DB1 from Server! to ASVR1.
You need to prepare the environment for the migration. The solution must ensure that the connection from Server1 to ADB1 does NOT use a public endpoint.
What should you do? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
正解：
Explanation:
Task 8
You plan to perform performance testing of db1.
You need prevent db1 from reverting to the last known good query plan.
You plan to perform performance testing of db1.
You need prevent db1 from reverting to the last known good query plan.
正解：
See the explanation part for the complete Solution.
Explanation:
To prevent db1 from reverting to the last known good query plan, you need to disable the automatic plan correction feature for the database. This feature is enabled by default and allows the Query Store to detect and fix plan performance regressions by forcing the last good plan1. However, if you want to test the performance of different plans without interference from the Query Store, you can turn off this feature by using the ALTER DATABASE SCOPED CONFIGURATION statement2.
Here are the steps to disable the automatic plan correction feature for db1:
* Connect to db1 using SQL Server Management Studio, Azure Data Studio, or any other tool that supports Transact-SQL statements.
* Open a new query window and run the following command: ALTER DATABASE SCOPED CONFIGURATION SET AUTOMATIC_TUNING (FORCE_LAST_GOOD_PLAN = OFF); GO
* This command will disable the automatic plan correction feature for db1 and allow the Query Optimizer to choose the best plan based on the current statistics and parameters3.
* To verify that the automatic plan correction feature is disabled for db1, you can query the sys.
database_scoped_configurations catalog view. The value of the force_last_good_plan column should be
0 for db1.
These are the steps to disable the automatic plan correction feature for db1.
Explanation:
To prevent db1 from reverting to the last known good query plan, you need to disable the automatic plan correction feature for the database. This feature is enabled by default and allows the Query Store to detect and fix plan performance regressions by forcing the last good plan1. However, if you want to test the performance of different plans without interference from the Query Store, you can turn off this feature by using the ALTER DATABASE SCOPED CONFIGURATION statement2.
Here are the steps to disable the automatic plan correction feature for db1:
* Connect to db1 using SQL Server Management Studio, Azure Data Studio, or any other tool that supports Transact-SQL statements.
* Open a new query window and run the following command: ALTER DATABASE SCOPED CONFIGURATION SET AUTOMATIC_TUNING (FORCE_LAST_GOOD_PLAN = OFF); GO
* This command will disable the automatic plan correction feature for db1 and allow the Query Optimizer to choose the best plan based on the current statistics and parameters3.
* To verify that the automatic plan correction feature is disabled for db1, you can query the sys.
database_scoped_configurations catalog view. The value of the force_last_good_plan column should be
0 for db1.
These are the steps to disable the automatic plan correction feature for db1.
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 in the review screen.
You have an Azure SQL database named Sales.
You need to implement disaster recovery for Sales to meet the following requirements:
* During normal operations, provide at least two readable copies of Sales.
* Ensure that Sales remains available if a datacenter fails.
Solution: You deploy an Azure SQL database that uses the General Purpose service tier and geo-replication.
Does this meet the goal?
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 in the review screen.
You have an Azure SQL database named Sales.
You need to implement disaster recovery for Sales to meet the following requirements:
* During normal operations, provide at least two readable copies of Sales.
* Ensure that Sales remains available if a datacenter fails.
Solution: You deploy an Azure SQL database that uses the General Purpose service tier and geo-replication.
Does this meet the goal?
正解：A
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解説: (GoShiken メンバーにのみ表示されます)