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Microsoft DP-300 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Plan and implement data platform resources	15–20%	- Implement migration strategies 1. Perform offline and online migrations 2. Evaluate migration requirements and strategies 3. Migrate between Azure services or from on-premises - Deploy database resources 1. Automate deployment using templates, PowerShell, or CLI 2. Configure resources for scale and performance 3. Deploy Azure SQL Database, Managed Instance, and SQL Server on Azure VMs - Plan deployment of database offerings 1. Plan for scalability and performance requirements 2. Identify use cases for hybrid and multi-cloud solutions 3. Evaluate deployment options for Azure SQL services
Topic 2: Monitor and optimize operational resources	15–20%	- 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 - Optimize resource consumption 1. Manage costs and licensing 2. Implement auto-scaling and elasticity 3. Adjust compute, storage, and tier settings - Automate maintenance and operations 1. Schedule and perform updates and patches 2. Automate tasks using jobs, scripts, or Logic Apps 3. Manage database lifecycle operations
Topic 3: 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. Configure auditing and logging 3. Implement data masking and classification - 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
Topic 4: Plan and configure high availability and disaster recovery	20–25%	- 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 backup and restore 1. Perform point-in-time and long-term retention restores 2. Configure automated backups and retention 3. Manage backup storage and costs - Design HA/DR strategy 1. Define RPO and RTO requirements 2. Choose between built-in and custom solutions 3. Evaluate hybrid and cross-region options
Topic 5: 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 - Improve query performance 1. Optimize T-SQL code and constructs 2. Use query store and performance tuning tools 3. Create and modify indexes - Manage workload performance 1. Control resource usage and concurrency 2. Troubleshoot slow-running queries 3. Implement partitioning and compression

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Microsoft Administering Relational Databases on Microsoft Azure Sample Questions (Q150-Q155):

NEW QUESTION # 150
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 area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:

https://learn.microsoft.com/en-us/azure/app-service/tutorial-connect-msi-sql-database?tabs=windowsclient%
2Cef%2Cdotnet

NEW QUESTION # 151
Hotspot Question
You have a database on a SQL Server on Azure Virtual Machines instance. The current state of Query Store for the database 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.

Answer:

Explanation:

Explanation:
The first answer is "none of the" because the Operation Mode (actual) is "Read only" so it is not retaining any query for evaluation due to the Query Store Available is 0.0 MB.
When the actual state is read-only, use the readonly_reason column to determine the root cause.
Typically, you find that Query Store transitioned to read-only mode because the size quota was exceeded. In that case, the readonly_reason is set to 65536 Consider the following steps to switch Query Store to read-write mode and activate data collection:
* Increase the maximum storage size by using the MAX_STORAGE_SIZE_MB option of ALTER DATABASE or
* Clean up Query Store data
https://learn.microsoft.com/en-us/sql/relational-databases/performance/best-practice-with-the-query-store?view=sql-server-ver16#Verify

NEW QUESTION # 152
You have a database named db1.
The log for db1 contains the following entry.

You need to ensure That db1 can process transactions.

Answer:

Explanation:

NEW QUESTION # 153
You plan to develop a dataset named Purchases by using Azure Databricks. Purchases will contain the following columns:
ProductID
ItemPrice
LineTotal
Quantity
StoreID
Minute
Month
Hour
Year
Day
You need to store the data to support hourly incremental load pipelines that will vary for each StoreID. The solution must minimize storage costs.
How should you complete the code? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Reference:
https://intellipaat.com/community/11744/how-to-partition-and-write-dataframe-in-spark-without-deleting-partitions-with-no-new-data

NEW QUESTION # 154
You have an Azure subscription that contains the resources shown in the following table.

You plan louse SQLDB11 as an elastic job database to run jobs on SQlDb11 andSOtDB22. What is the minimum number of database scoped credentials required tor the elastic jobs?

A. 0
B. 1
C. 2
D. 3

Answer: A

NEW QUESTION # 155
......

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