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Microsoft DP-300 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Plan and implement data platform resources	15–20%	- Plan deployment of database offerings 1. Plan for scalability and performance requirements 2. Evaluate deployment options for Azure SQL services 3. Identify use cases for hybrid and multi-cloud solutions - Deploy database resources 1. Deploy Azure SQL Database, Managed Instance, and SQL Server on Azure VMs 2. Automate deployment using templates, PowerShell, or CLI 3. Configure resources for scale and performance - Implement migration strategies 1. Evaluate migration requirements and strategies 2. Migrate between Azure services or from on-premises 3. Perform offline and online migrations
Topic 2: Implement a secure environment	20–25%	- Implement compliance and security controls 1. Configure auditing and logging 2. Implement data masking and classification 3. Assess and remediate vulnerabilities - Secure data at rest and in transit 1. Manage keys and certificates 2. Implement Transparent Data Encryption 3. Configure encryption for connections and data transfer - Configure authentication and authorization 1. Implement Microsoft Entra ID authentication 2. Manage database users, roles, and permissions 3. Apply least privilege principle
Topic 3: Plan and configure high availability and disaster recovery	20–25%	- Design HA/DR strategy 1. Choose between built-in and custom solutions 2. Evaluate hybrid and cross-region options 3. Define RPO and RTO requirements - Configure high availability solutions 1. Test and monitor HA/DR operations 2. Implement failover groups and auto-failover 3. Configure Always On availability groups - Implement backup and restore 1. Manage backup storage and costs 2. Perform point-in-time and long-term retention restores 3. Configure automated backups and retention
Topic 4: Monitor and optimize operational resources	15–20%	- Monitor database performance and health 1. Identify and diagnose performance issues 2. Set up alerts and notifications 3. Use Azure Monitor, SQL Insights, and metrics - Automate maintenance and operations 1. Automate tasks using jobs, scripts, or Logic Apps 2. Schedule and perform updates and patches 3. Manage database lifecycle operations - Optimize resource consumption 1. Implement auto-scaling and elasticity 2. Manage costs and licensing 3. Adjust compute, storage, and tier settings
Topic 5: Optimize query performance	15–20%	- Manage workload performance 1. Control resource usage and concurrency 2. Implement partitioning and compression 3. Troubleshoot slow-running queries - Improve query performance 1. Create and modify indexes 2. Optimize T-SQL code and constructs 3. Use query store and performance tuning tools - Analyze query execution plans 1. Identify bottlenecks and inefficiencies 2. Interpret execution plans and statistics 3. Evaluate index usage and design

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Microsoft Administering Relational Databases on Microsoft Azure DP-300 Prüfungsfragen mit Lösungen (Q163-Q168):

163. Frage
You plan to migrate on-premises Microsoft SQL Server databases to Azure.
You need to identify which deployment and resiliency options meet the following requirements:
Support user-initiated backups.
Support multiple automatically replicated instances across Azure regions.
Minimize administrative effort to implement and maintain business continuity.
What should you identify? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Antwort:

Begründung:

Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/virtual-machines/windows/sql-server-on-azure-vm-iaas-what-is-overview
https://docs.microsoft.com/en-us/dotnet/architecture/cloud-native/infrastructure-resiliency-azure

164. Frage
You have an Azure subscription that is linked to an Azure AD tenant named contoso.com. The subscription contains an Azure SQL database named SQL 1 and an Azure web named app1. App1 has the managed identity feature enabled.
You need to create a new database user for app1.
How should you complete the Transact-SQL statement? To answer, select the appropriate options in the answer are a.
NOTE: Each correct selection is worth one point.

Antwort:

Begründung:

165. Frage
You need to identify the cause of the performance issues on SalesSQLDb1.
Which two dynamic management views should you use? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. sys.dm_cdc_errors
B. sys.dm_pdw_nodes_tran_locks
C. sys.dm_tran_locks
D. sys.dm_exec_requests
E. sys.dm_exec_compute_node_errors
F. sys.dm_pdw_nodes_os_wait_stats

Antwort: B,F

Begründung:
SalesSQLDb1 experiences performance issues that are likely due to out-of-date statistics and frequent blocking queries.
A: Use sys.dm_pdw_nodes_tran_locks instead of sys.dm_tran_locks from Azure Synapse Analytics (SQL Data Warehouse) or Parallel Data Warehouse.
E: Example:
The following query will show blocking information.
SELECT
t1.resource_type,
t1.resource_database_id,
t1.resource_associated_entity_id,
t1.request_mode,
t1.request_session_id,
t2.blocking_session_id
FROM sys.dm_tran_locks as t1
INNER JOIN sys.dm_os_waiting_tasks as t2
ON t1.lock_owner_address = t2.resource_address;
Note: Depending on the system you're working with you can access these wait statistics from one of three locations:
sys.dm_os_wait_stats: for SQL Server
sys.dm_db_wait_stats: for Azure SQL Database
sys.dm_pdw_nodes_os_wait_stats: for Azure SQL Data Warehouse
Incorrect Answers:
F: sys.dm_tran_locks returns information about currently active lock manager resources in SQL Server 2019 (15.x). Each row represents a currently active request to the lock manager for a lock that has been granted or is waiting to be granted.
Instead use sys.dm_pdw_nodes_tran_locks.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-tran-locks-transact-sql

166. Frage
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.

Antwort:

Begründung:

Explanation:

Basic Concept: This question tests secure database administration, where the control must match the data state, access boundary, identity model, or compliance requirement.
Why the selected answer is Correct: The selected values fit this scenario because they apply the required Azure SQL configuration at the correct scope and sequence: You need to implement row-level security (RLS).
Why the alternate choices are Wrong: The alternate selections apply to different administrative stages or different scopes. In a hotspot or drag-drop task, order and scope are part of the answer, so a technically valid Azure feature can still be wrong if it is placed in the wrong step.

167. Frage
You have an Azure subscription that contains an Azure SQL managed instance, a database named db1, and an Azure web app named Appl. Appl uses db1.
You need to enable Resource Governor for a App1. The solution must meet the following requirements:
App1 must be able to consume all available CPU resources.
App1 must have at least half of the available CPU resources always available.
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 NOTE: More than one order of answer choices is correct. You will receive credit for any of the correct orders you select.

Antwort:

Begründung:

Explanation:

168. Frage
......

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