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Prerequisites
The DP-300 certification exam has no official prerequisite. However, the candidates for the test should have the skills and knowledge in the areas of management, security, optimization, security, and monitoring up-to-date solutions for a relational database. Although any professional can take this exam, it is generally intended for database administrators. These experts work with the Azure data engineers in managing the operational components of data platform solutions. It is recommended that the applicants understand the concepts that are covered in this test before attempting it.
Monitoring and Optimizing Operational Resources
- Identifying performance-related issues
- Configuration of Query Store
- Identifying sessions that can lead to blocking
- Assessing fragmentation of logs and databases
- Assessing configuration parameters related to database performance
- Resource configuration for optimal performance
- Infrastructure and storage resources
- Server and service account settings
- Configuration of Resource Governance for performance
- Configuring a user database
- Implementation of database-scoped configuration
- Configuring compute resources
- Intelligent Query Processing (IQP) configuration
- Monitoring performance and activity
- Preparation of a working performance baseline
- Determining performance metrics' sources
- Interpretation of performance metrics
- Assessing database performance using Intelligent Insights for Managed Instances and Azure SQL Database
- Monitoring and configuring performance and activity at the server, infrastructure, service and database levels
- Implementation of maintenance tasks that are performance-related
- Implementing index maintenance and statistics maintenance tasks
- Database auto-tuning configuration
- Storage capacity management
- Performing automation for database maintenance tasks
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Microsoft DP-300日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Monitor database operations | 10-15% | - Monitor and log database activity
|
| Implement a PaaS database solution | 15-20% | - Implement and configure Azure SQL Managed Instance
|
| Plan and implement data platform resources | 20-25% | - Recommend an appropriate database offering based on requirements
|
| Optimize database solutions | 10-15% | - Optimize query performance
|
| Implement a SQL Server database | 15-20% | - Manage SQL Server databases
|
| Implement secure resources | 20-25% | - Implement a risk mitigation strategy based on requirements
|
Microsoft Administering Relational Databases on Microsoft Azure (DP-300日本語版) Sample Questions:
汎用サービス層に、DB1という名前のAzure SQLデータベースがあります。
DB1のパフォーマンス指標を以下の図に示します。
Log 10の割合を減らす必要があります。解決策はコストを最小限に抑えるものでなければなりません。
あなたはどうすべきですか？
- A. チェックポイント操作を実行します。
- B. vCoreの数を増やします。
- C. B. リカバリーモデルをシンプルに変更します。
- D. サービス階層をビジネスクリティカルに変更します。
Correct Answer: D 🗳️
Explanation: Only visible for PassSureExam members. You can sign-up / login (it's free).
Azure 仮想マシン上に SQL Server があります。
次の図に示すクエリ プランを確認します。
以下の各文について、正しい場合は「はい」を選択してください。そうでない場合は「いいえ」を選択してください。
注意: 正しい選択ごとに 1 ポイントが加算されます。
Correct Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/performance/monitoring-performance-by-using-the-query-store Basic Concept: This question tests database auditing and query visibility. DP-300 expects you to distinguish between collecting audit events, retaining logs, and analyzing query behavior.
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 have SQL Server on an Azure virtual machine.
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.
タスク12
dbl には高可用性を構成する必要があります。ソリューションは、Azure データセンターの障害を許容し、データの損失やアプリケーションの接続文字列の変更を必要としない必要があります。
Correct Answer:
See the explanation part for the complete Solution.
Explanation:
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
DB1という名前のAzure SQLデータベースがあり、以下のテーブルが含まれています。
* dbo.Customers には EmailAddress (varchar(100)) と PhoneNumber (varchar(20)) という名前の 2 つの列が含まれています。
* dbo.Orders には、HASHBYTES( ' SHA2_256 ' , Customers.EmailAddress) として定義された ContactHash という名前の計算列が含まれています。
DB1には、以下の動的データマスキング構成があります。
* dbo.Customers.EmailAddress は email() マスキング関数を使用します。
* dbo.Customers.PhoneNumber は default() マスキング関数を使用します。
DB1には以下のユーザーが含まれています。
Correct Answer:
Explanation:
次の表に示すリソースを含む Azure サブスクリプションがあります。
App1 は、一定期間非アクティブになった後に db1 にアクセスしようとすると、一時的な接続エラーとタイムアウトが発生します。
即時のコストを考慮せずに、できるだけ早く Appl で発生した問題を解決するために db1 を変更する必要があります。何をしますか?
- A. db1 の自動一時停止遅延を無効にします。
- B. db1 の自動チューニングを有効にします。
- C. db1 の自動一時停止遅延を減らします。
- D. db1 に割り当てられている vCore の数を増やします。
Correct Answer: B 🗳️
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