Microsoft Administering Relational Databases on Microsoft Azure (DP-300日本語版) : DP-300日本語

  • Exam Code: DP-300J
  • Exam Name: Administering Relational Databases on Microsoft Azure (DP-300日本語版)
  • Updated: Aug 23, 2026     Q & A: 503 Questions and Answers

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Query Performance Optimization

  • Reviewing query plans
    • Determining the ideal execution plan
    • Identification of problem sections in execution plans
    • Extraction of query plans from the Query Store
  • Evaluation of Performance improvements
    • Determining the ideal Dynamic Management Views (DMVs) to collect information relating query performance
    • Using DMVs to identify performance issues
    • Implementation and identification of index changes for queries
    • Assessing the importance of hints in query performance
    • Defining query construct modifications
  • Reviewing index design and database table
    • Identifying issues on data quality and data duplication
    • Database tables
    • Assessing index design
    • Validating data types
    • Recommending table and index storage including file groups
    • Evaluation of table partitioning strategy
    • Compression for indexes and tables

Reference: https://learn.microsoft.com/en-us/credentials/certifications/azure-database-administrator-associate/?practice-assessment-type=certification

Skills measured

  • Perform administration by using T-SQL (10-15%)
  • Optimize query performance (5-10%)
  • Plan and implement data platform resources (15-20%)
  • Monitor and optimize operational resources (15-20%)
  • Perform automation of tasks (10-15%)
  • Plan and implement a High Availability and Disaster Recovery (HADR) environment (15-20%)
  • Implement a secure environment (15-20%)

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Administration tasks with the use of T-SQL

  • Using T-SQL for restoration and backups
    • Performing database backups and transaction log backups
    • Restoring user databases
    • Always On Availability Groups and preparing databases for them
  • Management of authorization and authentication
    • Handling security principals and certificates
    • The configuration of permissions
  • Monitoring of database configuration
    • The configuration of database autogrowth
    • Reviewing options for database configuration
    • Database free space reports
  • System health assessment
    • Utilizing DBCC for database consistency checks
    • The use of DMVs for examining health of servers and databases

Microsoft DP-300日本語 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Optimize query performance15–20%- Manage workload performance
  • 1. Troubleshoot slow-running queries
    • 2. Implement partitioning and compression
      • 3. Control resource usage and concurrency
        - 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. Evaluate index usage and design
                • 2. Interpret execution plans and statistics
                  • 3. Identify bottlenecks and inefficiencies
                    Topic 2: Monitor and optimize operational resources15–20%- Monitor database performance and health
                    • 1. Identify and diagnose performance issues
                      • 2. Use Azure Monitor, SQL Insights, and metrics
                        • 3. Set up alerts and notifications
                          - 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. Implement auto-scaling and elasticity
                                  • 2. Adjust compute, storage, and tier settings
                                    • 3. Manage costs and licensing
                                      Topic 3: Plan and implement data platform resources15–20%- 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
                                            - Plan deployment of database offerings
                                            • 1. Identify use cases for hybrid and multi-cloud solutions
                                              • 2. Evaluate deployment options for Azure SQL services
                                                • 3. Plan for scalability and performance requirements
                                                  - Implement migration strategies
                                                  • 1. Perform offline and online migrations
                                                    • 2. Evaluate migration requirements and strategies
                                                      • 3. Migrate between Azure services or from on-premises
                                                        Topic 4: Plan and configure high availability and disaster recovery20–25%- Implement backup and restore
                                                        • 1. Manage backup storage and costs
                                                          • 2. Configure automated backups and retention
                                                            • 3. Perform point-in-time and long-term retention restores
                                                              - Configure high availability solutions
                                                              • 1. Test and monitor HA/DR operations
                                                                • 2. Implement failover groups and auto-failover
                                                                  • 3. Configure Always On availability groups
                                                                    - Design HA/DR strategy
                                                                    • 1. Define RPO and RTO requirements
                                                                      • 2. Evaluate hybrid and cross-region options
                                                                        • 3. Choose between built-in and custom solutions
                                                                          Topic 5: Implement a secure environment20–25%- Implement compliance and security controls
                                                                          • 1. Configure auditing and logging
                                                                            • 2. Assess and remediate vulnerabilities
                                                                              • 3. Implement data masking and classification
                                                                                - Configure authentication and authorization
                                                                                • 1. Implement Microsoft Entra ID authentication
                                                                                  • 2. Manage database users, roles, and permissions
                                                                                    • 3. Apply least privilege principle
                                                                                      - Secure data at rest and in transit
                                                                                      • 1. Configure encryption for connections and data transfer
                                                                                        • 2. Implement Transparent Data Encryption
                                                                                          • 3. Manage keys and certificates

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