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Microsoft DP-300 Exam Syllabus Topics:

SectionObjectives
Topic 1: Optimize query performance- Improve performance
  • 1. Index optimization
    • 2. Query tuning techniques
      - Analyze query performance
      • 1. Use Query Store and execution plans
        • 2. Identify inefficient queries
          Topic 2: Plan and implement a high availability and disaster recovery environment- Backup and restore
          • 1. Point-in-time restore
            • 2. Automated backups
              - Design HA/DR solutions
              • 1. Configure failover groups
                • 2. Implement geo-replication
                  Topic 3: Monitor and optimize operational resources- Optimize resources
                  • 1. Scale compute and storage
                    • 2. Tune performance configuration
                      - Monitor database performance
                      • 1. Identify performance bottlenecks
                        • 2. Use Azure Monitor and Log Analytics
                          Topic 4: Implement a secure environment- Implement data protection
                          • 1. Data classification and auditing
                            • 2. Encryption at rest and in transit
                              - Manage database authentication and authorization
                              • 1. Manage database roles and permissions
                                • 2. Configure Azure Active Directory authentication
                                  Topic 5: Plan and implement data platform resources- Plan and configure security for the data platform
                                  • 1. Implement authentication and authorization
                                    • 2. Configure network security
                                      - Deploy and configure infrastructure
                                      • 1. Select appropriate Azure database services
                                        • 2. Configure compute and storage resources
                                          Topic 6: Perform automation- Automate database tasks
                                          • 1. Use Azure Automation
                                            • 2. Implement scheduled maintenance

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                                              Microsoft Administering Relational Databases on Microsoft Azure Sample Questions (Q374-Q379):

                                              NEW QUESTION # 374
                                              You have 10 you suspect are related to the connection nes 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?

                                              Answer: D

                                              Explanation:
                                              Azure Backup provides an Enterprise class backup capability for SQL Server on Azure VMs. All backups are stored and managed in a Recovery Services vault. There are several advantages that this solution provides, especially for Enterprises.
                                              Reference:
                                              https://docs.microsoft.com/en-us/azure/azure-sql/virtual-machines/windows/backup-restore#azbackup


                                              NEW QUESTION # 375
                                              You have an Azure subscription that contains an Azure SQL database named DB1.
                                              You need to host elastic jobs by using DB1. DB1 will also be configured as a job target. The solution must support the use of location-based Conditional Access policies.
                                              What should the elastic jobs use to access DB1?

                                              Answer: D

                                              Explanation:
                                              Elastic jobs support two authentication methods to connect to target databases: Microsoft Entra ID (Azure AD) authentication using a user-assigned managed identity (UMI) or database-scoped credentials.
                                              Microsoft recommends using user-assigned managed identity (UMI) for authentication because it integrates with Azure AD and supports Conditional Access policies, including location-based policies.


                                              NEW QUESTION # 376
                                              You have an Azure SQL database.
                                              You discover that the plan cache is full of compiled plans that were used only once.
                                              You run the select * from sys.database_scoped_configurations Transact-SQL command and receive the results shown in the following table.

                                              You need relieve the memory pressure.
                                              What should you configure?

                                              Answer: C

                                              Explanation:
                                              OPTIMIZE_FOR_AD_HOC_WORKLOADS = { ON | OFF }
                                              Enables or disables a compiled plan stub to be stored in cache when a batch is compiled for the first time. The default is OFF. Once the database scoped configuration OPTIMIZE_FOR_AD_HOC_WORKLOADS is enabled for a database, a compiled plan stub will be stored in cache when a batch is compiled for the first time. Plan stubs have a smaller memory footprint compared to the size of the full compiled plan.
                                              Incorrect Answers:
                                              A: LEGACY_CARDINALITY_ESTIMATION = { ON | OFF | PRIMARY }
                                              Enables you to set the query optimizer cardinality estimation model to the SQL Server 2012 and earlier version independent of the compatibility level of the database. The default is OFF, which sets the query optimizer cardinality estimation model based on the compatibility level of the database.
                                              B: QUERY_OPTIMIZER_HOTFIXES = { ON | OFF | PRIMARY }
                                              Enables or disables query optimization hotfixes regardless of the compatibility level of the database. The default is OFF, which disables query optimization hotfixes that were released after the highest available compatibility level was introduced for a specific version (post-RTM).
                                              Reference:
                                              https://docs.microsoft.com/en-us/sql/t-sql/statements/alter-database-scoped-configuration-transact-sql


                                              NEW QUESTION # 377
                                              Hotspot Question
                                              You have an Azure SQL database named DB1 that contains a table named Orders. The Orders table contains a row for each sales order. Each sales order includes the name of the user who placed the order.
                                              You need to implement row-level security (RLS). The solution must ensure that the users can view only their respective sales orders.
                                              What should you include in the solution? To answer, select the appropriate options in the answer area.
                                              NOTE: Each correct selection is worth one point.

                                              Answer:

                                              Explanation:

                                              Explanation:
                                              Implement RLS by using the CREATE SECURITY POLICY Transact-SQL statement, and predicates created as inline table-valued functions.
                                              https://learn.microsoft.com/en-us/sql/relational-databases/security/row-level-security?view=sql-server-ver16


                                              NEW QUESTION # 378
                                              You have an Azure subscription.
                                              You need to deploy an Azure SQL database by using a BACPAC file.
                                              Which command should you run?

                                              Answer: D

                                              Explanation:
                                              Import a BACPAC file into a database in SQL Database using the Azure CLI Example:
                                              echo "Importing sample database from $container to $database..."
                                              az sql db import --admin-password $password --admin-user $login --storage-key $key --storage- key-type StorageAccessKey --storage-uri
                                              https://$storage.blob.core.windows.net/$container/$bacpac --name $database --resource-group
                                              $resourceGroup --server $server
                                              Reference:
                                              https://learn.microsoft.com/en-us/azure/azure-sql/database/scripts/import-from-bacpac-cli


                                              NEW QUESTION # 379
                                              ......

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