Microsoft DP-300 Fragen&Antworten - DP-300 Prüfungsmaterialien

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Microsoft DP-300 Exam Syllabus Topics:

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

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Microsoft Administering Relational Databases on Microsoft Azure DP-300 Prüfungsfragen mit Lösungen (Q450-Q455):

450. Frage
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.

Antwort:

Begründung:

Explanation:

451. Frage
You have an Azure subscription that contains a logical SQL server. The server hosts two databases named db1 and db2 and an Azure AD service principal named app1.
You need to ensure that app1 can access db1. The solution must use the principle of least privilege.
How should you complete the Transact-SQL statement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Antwort:

Begründung:

Explanation:

https://learn.microsoft.com/en-us/azure/azure-sql/database/authentication-aad-service-principal-tutorial?view=az

452. Frage
You have an Azure virtual machine named VM1 that runs Windows Server 2022 and hosts a Microsoft SQL Server 2019 instance named SQL1.
You need to configure SQL1 to use mixed mode authentication.
Which procedure should you run?

A. sp_change_users_login
B. xp_grant_login
C. xp_instance_regwrite
D. sp_addremotelogin

Antwort: C

Begründung:
https://learn.microsoft.com/en-us/sql/database-engine/configure-windows/change-server- authentication-mode?view=sql-server-ver16 USE [master] GO EXEC xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'LoginMode', REG_DWORD, 1; GO

453. Frage
You have SQL Server on Azure virtual machines in an availability group.
You have a database named DB1 that is NOT in the availability group.
You create a full database backup of DB1.
You need to add DB1 to the availability group.
Which restore option should you use on the secondary replica?

A. Restore with Norecovery
B. Restore with Recovery
C. Restore with Standby

Antwort: A

Begründung:
Prepare a secondary database for an Always On availability group requires two steps:
1. Restore a recent database backup of the primary database and subsequent log backups onto each server
instance that hosts the secondary replica, using RESTORE WITH NORECOVERY
2. Join the restored database to the availability group.
Reference:
https://docs.microsoft.com/en-us/sql/database-engine/availability-groups/windows/manually-prepare-asecondary-
database-for-an-availability-group-sql-server

454. Frage
Hotspot Question
You have a Microsoft SQL Server database named DB1 that contains a table named Table1.
The database role membership for a user named User1 is 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.

Antwort:

Begründung:

Explanation:
Box 1: delete a row from Table1
Members of the db_datawriter fixed database role can add, delete, or change data in all user tables.
Box 2: db_datareader
Members of the db_datareader fixed database role can read all data from all user tables.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/security/authentication-access/database-level-roles

455. Frage
......

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