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Microsoft DP-300 Exam Syllabus Topics:

Section	Objectives
Plan and implement data platform resources	- Deploy and configure infrastructure 1. Select appropriate Azure database services 2. Configure compute and storage resources - Plan and configure security for the data platform 1. Configure network security 2. Implement authentication and authorization
Plan and implement a high availability and disaster recovery environment	- Design HA/DR solutions 1. Implement geo-replication 2. Configure failover groups - Backup and restore 1. Automated backups 2. Point-in-time restore
Perform automation	- Automate database tasks 1. Use Azure Automation 2. Implement scheduled maintenance
Implement a secure environment	- Manage database authentication and authorization 1. Configure Azure Active Directory authentication 2. Manage database roles and permissions - Implement data protection 1. Data classification and auditing 2. Encryption at rest and in transit
Optimize query performance	- Analyze query performance 1. Identify inefficient queries 2. Use Query Store and execution plans - Improve performance 1. Query tuning techniques 2. Index optimization
Monitor and optimize operational resources	- Optimize resources 1. Tune performance configuration 2. Scale compute and storage - Monitor database performance 1. Identify performance bottlenecks 2. Use Azure Monitor and Log Analytics

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Microsoft Administering Relational Databases on Microsoft Azure Sample Questions (Q152-Q157):

NEW QUESTION # 152
You have an Azure SQL database that contains a table named factSales. FactSales contains the columns shown in the following table.

FactSales has 6 billion rows and is loaded nightly by using a batch process.
Which type of compression provides the greatest space reduction for the database?

A. columnstore archival compression
B. columnstore compression
C. row compression
D. page compression

Answer: A

Explanation:
Columnstore tables and indexes are always stored with columnstore compression. You can further reduce the size of columnstore data by configuring an additional compression called archival compression.
Note: Columnstore - The columnstore index is also logically organized as a table with rows and columns, but the data is physically stored in a column-wise data format.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/data-compression/data-compression

NEW QUESTION # 153
You have SQL Server on an Azure virtual machine.
You review the query plan shown in the following exhibit.

For each of the following statements, select yes if the statement is true. Otherwise, select no.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/performance/monitoring-performance-by-using-the-query-store

NEW QUESTION # 154
You have a Microsoft SQL Server 2019 instance in an on-premises datacenter. The instance contains a 4-TB database named DB1.
You plan to migrate DB1 to an Azure SQL Database managed instance.
What should you use to minimize downtime and data loss during the migration?

A. Azure Database Migration Service
B. distributed availability groups
C. log shipping
D. database mirroring

Answer: A

Explanation:
When you migrate databases to Azure by using Azure Database Migration Service, you can do an offline or an online migration. With an offline migration, application downtime starts when the migration starts. With an online migration, downtime is limited to the time to cut over at the end of migration. We suggest that you test an offline migration to determine whether the downtime is acceptable; if not, do an online migration.
Reference:
https://docs.microsoft.com/en-us/azure/dms/tutorial-sql-server-to-managed-instance

NEW QUESTION # 155
You have an Azure SQL Database failover group named AzFG1.
You plan to run the following CLI command.

How will this affect AzFG1?

A. Up to two hours of data will be lost during an automatic failover.
B. A forced failover cannot be initiated during the grace period.
C. Automatic failover will occur after a minimum of two hours.
D. AzFG1 will attempt to fail back within two hours.

Answer: C

NEW QUESTION # 156
You have an Azure subscription that contains an Azure SQL managed instance named SQLMi1 and a SQL Agent job named Backupdb. Backupdb performs a daily backup of the databases hosted on SQLMi1.
You need to be notified by email if the job fails.
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.
NOTE: More than one order of answer choices is correct. You will receive credit for any of the correct orders you select.

Answer:

Explanation:

1 - Enable Database mail.
2 - Create an operator.
3 - Add a failure notification to the job.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/managed-instance/job-automation-managed-instance

NEW QUESTION # 157
......

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