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| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | Administering Relational Databases on Microsoft Azure |
| Exam Number: | DP-300 |
| Exam Price: | USD 165 (may vary by region) |
| Exam Format: | Multiple Choice, Multiple Response, Case Studies |
| Passing Score: | 700 (out of 1000) |
| Available Languages: | English, German, French, Portuguese (Brazil), Korean, Simplified Chinese, Japanese, Spanish, Traditional Chinese |
| Certificate Validity Period: | 1 year (renewable annually) |
| Related Certifications: | Microsoft Certified: Azure Database Administrator Associate |
| Real Exam Qty: | 40-60 (approx.) |
| Exam Duration: | 120 minutes |
| Recommended Training: | Microsoft Learn DP-300 Learning Path Microsoft Certified: Azure Database Administrator Associate |
| Exam Registration: | Microsoft Certification Exam DP-300 Page Pearson VUE Microsoft Exams |
| Sample Questions: | Microsoft DP-300 Sample Questions |
| Exam Way: | Online proctored or in-person at authorized testing centers (Pearson VUE). |
| Pre Condition: | No mandatory prerequisites, but familiarity with Azure fundamentals and relational database concepts is recommended. |
| Official Syllabus URL: | https://learn.microsoft.com/en-us/credentials/certifications/exams/dp-300/ |
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要通過Microsoft DP-300考試，考生必須深刻理解各種數據庫管理概念，例如在Azure中配置、部署和維護數據庫，實施安全措施以及優化數據庫性能。此外，他們必須熟悉Azure工具和服務，例如Azure Portal、Azure PowerShell和Azure CLI，以及SQL Server Management Studio（SSMS）和Azure Data Studio（ADS）工具。
Microsoft DP-300 認證考試是為那些想要在 Microsoft Azure 上管理關聯數據庫的專業人士設計的。 這項認證適合想要學習如何在雲端上管理和維護數據庫的數據庫管理員、開發人員和架構師。 該考試涵蓋各種主題，包括在 Azure 上部署和配置 SQL Server、管理數據庫和實例、實施安全性和優化性能等。
問題 #25
You have an instance of SQL Server on Azure Virtual Machines named VM1.
You need to implement a disaster recovery solution that meets the following requirements:
* Returns the solution to an operational state within 15 minutes of a failure
* Can perform disaster recovery testing in an isolated environment
* Minimizes administrative effort
What should you include in the solution?
答案：D
解題說明：
https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-sql#combining-bcdr-technologies-with-site-re
問題 #26
You manage an enterprise data warehouse in Azure Synapse Analytics.
Users report slow performance when they run commonly used queries. Users do not report performance changes for infrequently used queries.
You need to monitor resource utilization to determine the source of the performance issues.
Which metric should you monitor?
答案：B
解題說明：
Tempdb is used to hold intermediate results during query execution. High utilization of the tempdb database can lead to slow query performance.
Note: If you have a query that is consuming a large amount of memory or have received an error message related to allocation of tempdb, it could be due to a very large CREATE TABLE AS SELECT (CTAS) or INSERT SELECT statement running that is failing in the final data movement operation.
Reference:
https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-managemonitor#monitor-tempdb
問題 #27
You need to configure user authentication for the SERVER1 databases. The solution must meet the security and compliance requirements.
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.
答案：
解題說明：
1 - Create an Azure AD administrator for the logical server
2 - Create contained database users
3 - Connect to the databases by using an Azure AD account
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/authentication-aad-overview
問題 #28
What should you do after a failover of SalesSQLDb1 to ensure that the database remains accessible to
SalesSQLDb1App1?
答案：A
解題說明：
Section: [none]
Explanation:
Scenario: SalesSQLDb1 uses database firewall rules and contained database users.
Testlet 2
Case study
This is a case study. Case studies are not timed separately. You can use as much exam time as you
would like to complete each case. However, there may be additional case studies and sections on this exam.
You must manage your time to ensure that you are able to complete all questions included on this exam in the
time provided.
To answer the questions included in a case study, you will need to reference information that is provided in the
case study. Case studies might contain exhibits and other resources that provide more information about the
scenario that is described in the case study. Each question is independent of the other questions in this case
study.
At the end of this case study, a review screen will appear. This screen allows you to review your answers and to
make changes before you move to the next section of the exam. After you begin a new section, you cannot
return to this section.
To start the case study
To display the first question in this case study, click the Next button. Use the buttons in the left pane to explore
the content of the case study before you answer the questions. Clicking these buttons displays information such
as business requirements, existing environment, and problem statements. If the case study has an All
Information tab, note that the information displayed is identical to the information displayed on the subsequent
tabs. When you are ready to answer a question, click the Question button to return to the question.
Overview
Existing Environment
Contoso, Ltd. is a financial data company that has 100 employees. The company delivers financial data to
customers.
Active Directory
Contoso has a hybrid Azure Active Directory (Azure AD) deployment that syncs to on-premises Active
Directory.
Database Environment
Contoso has SQL Server 2017 on Azure virtual machines shown in the following table.
SQL1 and SQL2 are in an Always On availability group and are actively queried. SQL3 runs jobs, provides
historical data, and handles the delivery of data to customers.
The on-premises datacenter contains a PostgreSQL server that has a 50-TB database.
Current Business Model
Contoso uses Microsoft SQL Server Integration Services (SSIS) to create flat files for customers. The
customers receive the files by using FTP.
Requirements
Planned Changes
Contoso plans to move to a model in which they deliver data to customer databases that run as platform as a
service (PaaS) offerings. When a customer establishes a service agreement with Contoso, a separate resource
group that contains an Azure SQL database will be provisioned for the customer. The database will have a
complete copy of the financial data. The data to which each customer will have access will depend on the
service agreement tier. The customers can change tiers by changing their service agreement.
The estimated size of each PaaS database is 1 TB.
Contoso plans to implement the following changes:
* Move the PostgreSQL database to Azure Database for PostgreSQL during the next six months.
* Upgrade SQL1, SQL2, and SQL3 to SQL Server 2019 during the next few months.
* Start onboarding customers to the new PaaS solution within six months.
Business Goals
Contoso identifies the following business requirements:
* Use built-in Azure features whenever possible.
* Minimize development effort whenever possible.
* Minimize the compute costs of the PaaS solutions.
* Provide all the customers with their own copy of the database by using the PaaS solution.
* Provide the customers with different table and row access based on the customer's service agreement.
* In the event of an Azure regional outage, ensure that the customers can access the PaaS solution with
minimal downtime. The solution must provide automatic failover.
* Ensure that users of the PaaS solution can create their own database objects but he prevented from
modifying any of the existing database objects supplied by Contoso.
Technical Requirements
Contoso identifies the following technical requirements:
* Users of the PaaS solution must be able to sign in by using their own corporate Azure AD credentials or
have Azure AD credentials supplied to them by Contoso. The solution must avoid using the internal Azure
AD of Contoso to minimize guest users.
* All customers must have their own resource group, Azure SQL server, and Azure SQL database. The
deployment of resources for each customer must be done in a consistent fashion.
* Users must be able to review the queries issued against the PaaS databases and identify any new objects
created.
* Downtime during the PostgreSQL database migration must be minimized.
Monitoring Requirements
Contoso identifies the following monitoring requirements:
* Notify administrators when a PaaS database has a higher than average CPU usage.
* Use a single dashboard to review security and audit data for all the PaaS databases.
* Use a single dashboard to monitor query performance and bottlenecks across all the PaaS databases.
* Monitor the PaaS databases to identify poorly performing queries and resolve query performance issues
automatically whenever possible.
PaaS Prototype
During prototyping of the PaaS solution in Azure, you record the compute utilization of a customer's Azure SQL
database as shown in the following exhibit.
Role Assignments
For each customer's Azure SQL Database server, you plan to assign the roles shown in the following exhibit.
問題 #29
You have an Azure subscription that contains an Azure SQL database named DB1.
You need to recommend a high availability, disaster recovery (HA/DR) solution for DB1. The solution must meet the following requirements:
- Ensure that a recovery time objective (RTO) of less than five minutes can be met.
- Ensure that a recovery point objective (RPO) of less than 30 seconds
can be met.
- Ensure availability in the event of an Azure region outage.
What should you include in the recommendation?
答案：C
解題說明：
To protect an Azure SQL Database from a regional outage, you should implement disaster recovery solutions like active geo-replication or failover groups to create a secondary, readable replica in a different Azure region.
Azure failover groups for Azure SQL Database offer a Recovery Time Objective (RTO) of typically less than 60 seconds and a Recovery Point Objective (RPO) of 5 seconds. This means that, in the event of a failover, your database should be back online within a minute, and you might experience a maximum of 5 seconds of data loss.
Note:
Active Geo-Replication and Failover Groups:
Active Geo-Replication:
This feature allows you to create readable secondary databases in different Azure regions. It provides a mechanism for failover to the secondary database in case of a regional outage, minimizing downtime.
Failover Groups:
Failover groups simplify the management of geo-replicated databases, enabling automatic failover of multiple databases simultaneously. They also provide read-write and read-only listener endpoints that remain unchanged after failover, simplifying application updates.
Reference:
https://learn.microsoft.com/en-us/azure/azure-sql/database/failover-group-sql-db?view=azuresql
問題 #30
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P.S. Testpdf在Google Drive上分享了免費的、最新的DP-300考試題庫：https://drive.google.com/open?id=17BkJ33EIUkW9rB4GnEPpwaAhfZXoDR4_