Pass the Microsoft Certified: Azure Database Administrator Associate DP-300 Questions and answers with ExamsMirror

To ensure that db1 is compatible with all the features and syntax of SQL Server 2012, you need to set the compatibility level of the database to 110, which is the compatibility level for SQL Server 20121. The compatibility level affects the behavior of certain Transact-SQL statements and features, and determines how the database engine interprets the SQL code2.

You can set the compatibility level of db1 by using the Azure portal or Transact-SQL statements. Here are the steps for both methods:

Using the Azure portal:

Go to the Azure portal and select your Azure SQL Database server that hosts db1.

Select the database db1 and click on Query Performance Insight in the left menu.

Click on Configure Query Store and select 110 from the Compatibility level dropdown list.

Click on Save to apply the change.

Using Transact-SQL statements:

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 db1 SET COMPATIBILITY_LEVEL = 110; GO

This command will set the compatibility level of db1 to 110, which is equivalent to SQL Server 2012.

These are the steps to set the compatibility level of db1 to 110. 

To configure a disaster recovery solution for db1, you can use the failover groups feature of Azure SQL Database. Failover groups allow you to manage the replication and failover of a group of databases across different regions with the same connection strings1. You can also use active geo-replication as an alternative, but you will need to update the connection strings manually after a failover2.

Here are the steps to create a failover group for db1 with the secondary server in the West US 3 region:

Using the Azure portal:

Go to the Azure portal and select your Azure SQL Database server that hosts db1.

Select Failover groups in the left menu and click on Add group.

Enter a name for the failover group and select West US 3 as the secondary region.

Click on Create a new server and enter the details for the secondary server, such as server name, admin login, password, and subscription.

Click on Select existing database(s) and choose db1 from the list of databases on the primary server.

Click on Configure failover policy and select the failover mode, grace period, and read-write failover endpoint mode according to your preferences.

Click on Create to create the failover group and start the replication of db1 to the secondary server.

Using PowerShell commands:

Install the Azure PowerShell module and log in with your Azure account.

Run the following command to create a new server in the West US 3 region: New-AzSqlServer -ResourceGroupName < your-resource-group-name > -ServerName < your-secondary-server-name > -Location " West US 3 " -SqlAdministratorCredentials $(New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList " < your-admin-login > " , $(ConvertTo-SecureString -String " < your-password > " -AsPlainText -Force))

Run the following command to create a new failover group with db1: New-AzSqlDatabaseFailoverGroup -ResourceGroupName < your-resource-group-name > -ServerName < your-primary-server-name > -PartnerResourceGroupName < your-resource-group-name > -PartnerServerName < your-secondary-server-name > -FailoverGroupName < your-failover-group-name > -Database db1 -FailoverPolicy Manual -GracePeriodWithDataLossHours 1 -ReadWriteFailoverEndpoint " Enabled "

You can modify the parameters of the command according to your preferences, such as the failover policy, grace period, and read-write failover endpoint mode.

These are the steps to create a failover group for db1 with the secondary server in the West US 3 region.

To configure high availability for dbl, you can use the failover groups feature of Azure SQL Database. Failover groups allow you to manage the replication and failover of a group of databases across different regions with the same connection strings1. You can choose all, or a subset of, user databases in a logical server to be replicated to another logical server in a different region. You can also specify the failover policy, such as manual or automatic, and the grace period for data loss.

Here are the steps to create a failover group for dbl:

Using the Azure portal:

Go to the Azure portal and select your Azure SQL Database server that hosts dbl.

Select Failover groups in the left menu and click on Add group.

Enter a name for the failover group and select a secondary region that is different from the primary region.

Click on Create a new server and enter the details for the secondary server, such as server name, admin login, password, and subscription.

Click on Select existing database(s) and choose dbl from the list of databases on the primary server.

Click on Configure failover policy and select the failover mode, grace period, and read-write failover endpoint mode according to your preferences.

Click on Create to create the failover group and start the replication of dbl to the secondary server.

Using PowerShell commands:

Install the Azure PowerShell module and log in with your Azure account.

Run the following command to create a new server in the secondary region: New-AzSqlServer -ResourceGroupName < your-resource-group-name > -ServerName < your-secondary-server-name > -Location " < secondary-region-name > " -SqlAdministratorCredentials $(New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList " < your-admin-login > " , $(ConvertTo-SecureString -String " < your-password > " -AsPlainText -Force))

Run the following command to create a new failover group with dbl: New-AzSqlDatabaseFailoverGroup -ResourceGroupName < your-resource-group-name > -ServerName < your-primary-server-name > -PartnerResourceGroupName < your-resource-group-name > -PartnerServerName < your-secondary-server-name > -FailoverGroupName < your-failover-group-name > -Database dbl -FailoverPolicy < manual-or-automatic > -GracePeriodWithDataLossHours < grace-period-in-hours > -ReadWriteFailoverEndpoint " < enabled-or-disabled > "

You can modify the parameters of the command according to your preferences, such as the failover policy, grace period, and read-write failover endpoint mode.

These are the steps to create a failover group for dbl

To configure your user account as the Azure AD admin for the server named sql3700689S, you can use the Azure portal or the Azure CLI. Here are the steps for both methods:

Using the Azure portal:

Go to the Azure portal and select SQL Server – Azure Arc.

Select the server named sql3700689S and click on Active Directory admin.

Click on Set admin and choose your user account from the list of Azure AD users.

Click on Select and then Save to confirm the change.

You can verify the Azure AD admin by clicking on Active Directory admin again and checking the current admin.

Using the Azure CLI:

Install the Azure CLI and log in with your Azure account.

Run the following command to get the object ID of your user account: az ad user show --id < your-user-name > --query objectId -o tsv

Run the following command to set your user account as the Azure AD admin for the server: az sql server ad-admin create --server sql3700689S --object-id < your-object-id > --display-name < your-user-name >

You can verify the Azure AD admin by running the following command: az sql server ad-admin show --server sql3700689S

These are the steps to configure your user account as the Azure AD admin for the server named sql3700689S.

To enable page compression on the PK_SalesOrderHeader_SalesOrderlD clustered index of the SalesLT.SalesOrderHeader table in db1, you can use the following Transact-SQL script:

-- Connect to the Azure SQL database named db1

USE db1;

GO

-- Enable page compression on the clustered index

ALTER INDEX PK_SalesOrderHeader_SalesOrderlD ON SalesLT.SalesOrderHeader

REBUILD WITH (DATA_COMPRESSION = PAGE);

GO

This script will rebuild the clustered index with page compression, which can reduce the storage space and improve the query performance

The script solution consists of three parts:

The first part is USE db1; GO. This part connects to the Azure SQL database named db1, where the SalesLT.SalesOrderHeader table is located. The GO command separates the batches of Transact-SQL statements and sends them to the server.

The second part is ALTER INDEX PK_SalesOrderHeader_SalesOrderlD ON SalesLT.SalesOrderHeader REBUILD WITH (DATA_COMPRESSION = PAGE); GO. This part enables page compression on the clustered index named PK_SalesOrderHeader_SalesOrderlD, which is defined on the SalesLT.SalesOrderHeader table. The ALTER INDEX statement modifies the properties of an existing index. The REBUILD option rebuilds the index from scratch, which is required to change the compression setting. The DATA_COMPRESSION = PAGE option specifies that page compression is applied to the index, which means that both row and prefix compression are used. Page compression can reduce the storage space and improve the query performance by compressing the data at the page level. The GO command ends the batch of statements.

The third part is optional, but it can be useful to verify the compression status of the index. It is SELECT name, index_id, data_compression_desc FROM sys.indexes WHERE object_id = OBJECT_ID( ' SalesLT.SalesOrderHeader ' );. This part queries the sys.indexes catalog view, which contains information about the indexes in the database. The SELECT statement returns the name, index_id, and data_compression_desc columns for the indexes that belong to the SalesLT.SalesOrderHeader table. The OBJECT_ID function returns the object identification number for the table name. The data_compression_desc column shows the compression type of the index, which should be PAGE for the clustered index after the script is executed.

These are the steps of the script solution for enabling page compression on the clustered index of the SalesLT.SalesOrderHeader table in db1.

Create an Azure Monitor metric alert rule on database db1 using the metric:

CPU percentage

Configure the condition as:

Aggregation: Average

Operator: Greater than

Threshold: 50

Aggregation granularity / Period: 1 minute

Frequency of evaluation: 1 minute

Evaluation period / Lookback window: 5 minutes

Action group email: admin@contoso.com

Azure SQL Database exposes CPU percentage as a platform metric, and Azure Monitor metric alerts can send notifications through action groups such as email. Microsoft describes SQL Database alerts as metric-based alerts that can send email when metrics such as CPU usage reach a defined threshold.

Azure Portal Method — Recommended for Simulation

Step 1: Open the db1 Azure SQL database

Sign in to the Azure portal.

Search for SQL databases.

Open the database named:

db1

Do not open the SQL logical server unless the alert needs to apply to all databases. This task is specifically for db1, so the alert scope must be the db1 database resource.

Step 2: Create a new alert rule

From the db1 database page:

In the left menu, select Alerts.

Select Create.

Select Alert rule.

Microsoft’s Azure Monitor workflow allows you to create an alert rule directly from the target resource. When you create it from a resource, the resource is automatically set as the alert scope.

Step 3: Confirm the alert scope

On the alert rule page, confirm the scope is the Azure SQL database:

db1

The resource type should be similar to:

SQL database

Microsoft.Sql/servers/databases

If the scope is the SQL server instead of the database, remove it and select the db1 database resource.

Step 4: Add the alert condition

Under Condition, select Add condition.

Choose the metric:

CPU percentage

Sometimes it appears as:

CPU percent

or metric name:

cpu_percent

For Azure SQL Database, CPU percentage represents CPU consumption toward the database workload limit, expressed as a percentage.

Step 5: Configure the signal logic

Configure the alert logic exactly like this:

Setting

Value

Threshold type

Static

Aggregation type

Average

Operator

Greater than

Threshold value

50

Unit

Percent

Aggregation granularity / Period

1 minute

Frequency of evaluation

1 minute

Evaluation period / Lookback window

5 minutes

This means Azure Monitor evaluates the CPU metric every minute, using one-minute metric samples, and fires the alert only when the average CPU percentage is greater than 50% across the five-minute evaluation window.

Be precise here. The task says:

average CPU percentage utilization is greater than 50 percent for five minutes sampled at one-minute intervals

So the correct choices are:

Average

Greater than 50

Every 1 minute

Over the last 5 minutes

Azure Monitor metric alert rules combine the monitored resource, the metric condition, and action groups that run when the condition is met.

Step 6: Create the email action group

Under Actions, select:

Create action group

Configure the basics:

Setting

Value

Subscription

Use the current subscription

Resource group

Use the lab resource group

Action group name

AG-db1-CPU-Email

Display name

db1CPU

Then go to Notifications.

Add a notification:

Setting

Value

Notification type

Email/SMS message/Push/Voice

Name

EmailAdmin

Email

admin@contoso.com

Select OK, then Review + create, then Create.

Action groups define the notification or automation action that runs when an alert fires. Microsoft documents email as a supported action group notification type.

Step 7: Configure alert rule details

Under Details, configure:

Setting

Value

Severity

2 or 3

Alert rule name

db1 CPU greater than 50 percent

Description

Alert when average CPU percentage for db1 is greater than 50 percent for 5 minutes.

Enable upon creation

Yes

Severity is usually not specified by the task, so any reasonable severity is acceptable. In an exam lab, I would use Severity 2 for CPU performance impact.

Step 8: Review and create

Select Review + create.

Confirm the condition says something equivalent to:

Whenever the average CPU percentage is greater than 50

Confirm the evaluation settings are:

Check every 1 minute

Lookback period 5 minutes

Confirm the action group sends email to:

admin@contoso.com

Select Create.

Verification

After creation:

Open db1.

Go to Alerts.

Select Alert rules.

Confirm the alert rule exists and is enabled.

Open the rule and verify:

Scope: db1

Signal: CPU percentage

Aggregation: Average

Operator: Greater than

Threshold: 50

Evaluation frequency: 1 minute

Window size: 5 minutes

Action group: admin@contoso.com

Azure CLI Method

Use this only if the simulation gives you Cloud Shell.

First get the database resource ID:

az sql db show \

--resource-group < resource-group-name > \

--server < sql-server-name > \

--name db1 \

--query id \

--output tsv

Create the action group:

az monitor action-group create \

--resource-group < resource-group-name > \

--name AG-db1-CPU-Email \

--short-name db1CPU \

--action email EmailAdmin admin@contoso.com

Create the metric alert:

az monitor metrics alert create \

--name " db1 CPU greater than 50 percent " \

--resource-group < resource-group-name > \

--scopes < db1-resource-id > \

--condition " avg cpu_percent > 50 " \

--window-size 5m \

--evaluation-frequency 1m \

--action AG-db1-CPU-Email \

--description " Alert when average CPU percentage for db1 is greater than 50 percent for 5 minutes. "

The metric name commonly used for Azure SQL Database CPU percentage in CLI/ARM contexts is:

cpu_percent

SSMS Clarification

SSMS is not the correct tool for this task.

Do not configure Database Mail. Azure SQL Database does not use SQL Server Agent/Database Mail in the same way as SQL Server on a VM or SQL Managed Instance. This requirement is an Azure Monitor metric alert requirement.

Correct tool:

Azure portal > db1 > Alerts > Create alert rule

Wrong tool:

SSMS Database Mail

Final Exam-Lab Configuration

Use this exact configuration:

Resource: db1

Alert type: Metric alert

Metric: CPU percentage

Aggregation: Average

Operator: Greater than

Threshold: 50

Aggregation granularity: 1 minute

Evaluation frequency: 1 minute

Evaluation period/window: 5 minutes

Action group notification: Email

Email recipient: admin@contoso.com

That completes the task.

Requirement: Configure differential backups for Azure SQL Database db1 to run once a day instead of twice a day.

Correct setting: Change Differential backup frequency from 12 Hours to 24 Hours.

Azure SQL Database supports differential backup frequency of either 12 hours or 24 hours. A 12-hour frequency means twice per day; a 24-hour frequency means once per day. Microsoft also notes that 24-hour differential backup frequency can increase restore time compared with 12-hour frequency.

Method 1 — Azure Portal Method

This is the best method for the simulation.

Step 1: Open the Azure SQL logical server

Sign in to the Azure portal.

Search for SQL servers.

Open the logical SQL server that hosts database db1.

Do not start from SQL Server Management Studio for this task. The differential backup frequency is an Azure SQL backup policy setting, not a normal T-SQL database setting.

Step 2: Open the Backups page

In the SQL server left menu, select Backups.

Select the Retention policies tab.

Microsoft’s documented portal path is to go to the logical SQL server, select Backups, then select the Retention policies tab.

Step 3: Select database db1

In the list of databases, locate db1.

Select the checkbox next to db1.

Select Configure policies from the action bar.

Step 4: Change the differential backup frequency

In the policy configuration pane:

Find Differential backup frequency.

Change it from:

12 Hours

to:

24 Hours

Leave the PITR retention period unchanged unless the task specifically tells you to change it.

Select Apply or Save.

Microsoft’s documented option is exactly 12 Hours or 24 hours under Differential backup frequency.

Method 2 — Azure CLI Method

Use this if the simulation provides Cloud Shell.

az sql db str-policy set \

--resource-group < resource-group-name > \

--server < server-name > \

--name db1 \

--retention-days < current-retention-days > \

--diffbackup-hours 24

Example:

az sql db str-policy set \

--resource-group RG1 \

--server sql60152867 \

--name db1 \

--retention-days 7 \

--diffbackup-hours 24

Microsoft documents az sql db str-policy set with --diffbackup-hours 24 for changing active database differential backup frequency. Valid values are 12 or 24 hours.

Be careful: do not guess the retention days blindly in a real environment. In the exam lab, use the existing retention value shown in the portal unless the task also asks you to change retention.

Method 3 — PowerShell Method

Use this if Azure PowerShell is available.

Set-AzSqlDatabaseBackupShortTermRetentionPolicy `

-ResourceGroupName " < resource-group-name > " `

-ServerName " < server-name > " `

-DatabaseName " db1 " `

-RetentionDays < current-retention-days > `

-DiffBackupIntervalInHours 24

Microsoft documents Set-AzSqlDatabaseBackupShortTermRetentionPolicy with -DiffBackupIntervalInHours 24 for setting Azure SQL Database differential backup frequency.

SSMS / T-SQL Clarification

For this task, SSMS is not the right tool to change the setting.

There is no normal ALTER DATABASE T-SQL command in Azure SQL Database to change automated differential backup frequency. Microsoft documents this change through:

Azure portal

Azure CLI

PowerShell

REST API

not SSMS/T-SQL.

You may use SSMS only to confirm the database exists and is accessible, but the backup frequency setting must be changed from Azure management tools.

Apply an Azure Resource Manager Delete lock / CanNotDelete lock directly to the Azure SQL database resource db1.

Microsoft states that Azure resource locks can be applied at subscription, resource group, or resource scope to protect resources from accidental deletion or modification. In the Azure portal, the lock types are shown as Delete and Read-only; in CLI/PowerShell, they are called CanNotDelete and ReadOnly. A CanNotDelete/Delete lock allows users to read and modify the resource, but prevents deletion.

Azure Portal Method — Recommended for Simulation

Step 1: Open the database resource

Sign in to the Azure portal.

In the search bar, search for SQL databases.

Select the database named db1.

Make sure you select the database resource itself, not only the SQL logical server.

Step 2: Open Locks

In the left menu of db1, scroll to Settings.

Select Locks.

Select Add.

Step 3: Create the delete lock

Configure the lock as follows:

Setting

Value

Lock name

PreventDelete-db1

Lock type

Delete

Notes

Prevent accidental deletion of db1

Then select OK or Save.

In the portal, choose Delete, not Read-only. A Read-only lock is too restrictive because it can block management updates. For this task, the requirement is only to stop accidental deletion, so Delete / CanNotDelete is the correct lock type. Microsoft confirms that CanNotDelete prevents deletion but still permits reading and modifying the resource.

Step 4: Verify the lock

Stay on the db1 database page.

Go back to Locks.

Confirm the lock exists with:

Name: PreventDelete-db1

Lock type: Delete

The task is complete once db1 has a Delete lock applied.

PowerShell Method

Use this if the lab provides Azure PowerShell.

New-AzResourceLock `

-LockLevel CanNotDelete `

-LockName " PreventDelete-db1 " `

-LockNotes " Prevent accidental deletion of db1 " `

-ResourceGroupName " < resource-group-name > " `

-ResourceName " < sql-server-name > /db1 " `

-ResourceType " Microsoft.Sql/servers/databases "

Microsoft’s New-AzResourceLock documentation includes an Azure SQL Database example using resource type Microsoft.Sql/servers/databases and resource name format serverName/databaseName.

Example format:

New-AzResourceLock `

-LockLevel CanNotDelete `

-LockName " PreventDelete-db1 " `

-LockNotes " Prevent accidental deletion of db1 " `

-ResourceGroupName " RG1 " `

-ResourceName " sql60152867/db1 " `

-ResourceType " Microsoft.Sql/servers/databases "

Replace RG1 and sql60152867 with the actual resource group and SQL logical server that hosts db1.

Azure CLI Method

Use Azure CLI only if the lab gives Cloud Shell and you know the full resource ID.

First get the database resource ID:

az sql db show \

--resource-group < resource-group-name > \

--server < sql-server-name > \

--name db1 \

--query id \

--output tsv

Then create the lock:

az resource lock create \

--name PreventDelete-db1 \

--lock-type CanNotDelete \

--resource < database-resource-id > \

--notes " Prevent accidental deletion of db1 "

Azure CLI supports resource-level lock creation with --lock-type CanNotDelete or ReadOnly.

SSMS / T-SQL Clarification

SSMS is not the correct tool for this task.

A delete lock is an Azure Resource Manager control-plane setting, not a SQL data-plane setting. SQL Server Management Studio can manage database objects and run T-SQL, but it cannot create Azure portal deletion protection locks for an Azure SQL Database.

To configure sq1370O6895 to support the creation of new database users from Azure AD identities, you need to do the following steps:

Set up a Microsoft Entra tenant and associate it with your Azure subscription. You can use the Microsoft Entra portal or the Azure portal to create and manage your Microsoft Entra users and groups12.

Configure a Microsoft Entra admin for sq1370O6895.  You can use the Azure portal or the Azure CLI to set a Microsoft Entra user as the admin for the server34. The Microsoft Entra admin can create other database users from Microsoft Entra identities5.

Connect to db1 using the Microsoft Entra admin account and run the following Transact-SQL statement to create a new database user from a Microsoft Entra identity: CREATE USER [Microsoft Entra user name] FROM EXTERNAL PROVIDER;6 You can replace the Microsoft Entra user name with the name of the user or group that you want to create in the database.

Grant the appropriate permissions to the new database user by adding them to a database role or granting them specific privileges. For example, you can run the following Transact-SQL statement to add the new user to the db_datareader role: ALTER ROLE db_datareader ADD MEMBER [Microsoft Entra user name];

These are the steps to configure sq1370O6895 to support the creation of new database users from Azure AD identities.

To ensure that any enhancements made to the Query Optimizer through patches are available to dbl and db2 on sql37006895, you need to enable the query optimizer hotfixes option for each database. This option allows you to use the latest query optimization improvements that are not enabled by default1. You can enable this option by using the ALTER DATABASE SCOPED CONFIGURATION statement2.

Here are the steps to enable the query optimizer hotfixes option for dbl and db2 on sql37006895:

Connect to sql37006895 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 commands for each database:

-- Switch to the database context

USE dbl;

GO

-- Enable the query optimizer hotfixes option

ALTER DATABASE SCOPED CONFIGURATION SET QUERY_OPTIMIZER_HOTFIXES = ON;

GO

Repeat the same commands for db2, replacing dbl with db2 in the USE statement.

To verify that the query optimizer hotfixes option is enabled for each database, you can query the sys.database_scoped_configurations catalog view. The value of the query_optimizer_hotfixes column should be 1 for both databases.

These are the steps to enable the query optimizer hotfixes option for dbl and db2 on sql37006895.