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Microsoft DP-300 Exam is designed for database administrators who want to demonstrate their skills in administering relational databases on Microsoft Azure. DP-300 exam covers a wide range of topics, including the deployment and configuration of Azure SQL databases, the management of security and performance, and the implementation of high availability and disaster recovery solutions.

Microsoft Administering Relational Databases on Microsoft Azure Sample Questions (Q154-Q159):

NEW QUESTION # 154
HOTSPOT
You have an Azure SQL database named DB1. The automatic tuning options for DB1 are configured as 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.
Hot Area:

Answer:

Explanation:

Section: [none]
Explanation:
Box 1: Yes
We see: Tuning option: Create index ON
CREATE INDEX - Identifies indexes that may improve performance of your workload, creates indexes, and
automatically verifies that performance of queries has improved.
Box 2: No
Box 3: Yes
FORCE LAST GOOD PLAN (automatic plan correction) - Identifies Azure SQL queries using an execution plan
that is slower than the previous good plan, and queries using the last known good plan instead of the regressed
plan.

NEW QUESTION # 155
You configure version control for an Azure Data Factory instance as 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
Graphical user interface, text, application Description automatically generated

Box 1: adf_publish
By default, data factory generates the Resource Manager templates of the published factory and saves them into a branch called adf_publish. To configure a custom publish branch, add a publish_config.json file to the root folder in the collaboration branch. When publishing, ADF reads this file, looks for the field publishBranch, and saves all Resource Manager templates to the specified location. If the branch doesn't exist, data factory will automatically create it. And example of what this file looks like is below:
{
"publishBranch": "factory/adf_publish"
}
Box 2: /dwh_barchlet/ adf_publish/contososales
RepositoryName: Your Azure Repos code repository name. Azure Repos projects contain Git repositories to manage your source code as your project grows. You can create a new repository or use an existing repository that's already in your project.
Reference:
https://docs.microsoft.com/en-us/azure/data-factory/source-control

NEW QUESTION # 156
SIMULATION
You have a legacy application written for Microsoft SQL Server 2012. The application will be the only application that accesses db1.
You need to ensure that db1 is compatible with all the features and syntax of SQL Server 2012.
To complete this task, sign in to the virtual machine. You may need to use SQL Server Management Studio and the Azure portal.

Answer:

Explanation:

NEW QUESTION # 157
You have an Azure SQL database that contains a table named Customer. Customer has the columns shown in the following table.

You plan to implement a dynamic data mask for the Customer_Phone column. The mask must meet the following requirements:
The first six numerals of each customer's phone number must be masked.
The last four digits of each customer's phone number must be visible.
Hyphens must be preserved and displayed.
How should you configure the dynamic data mask? To answer, select the appropriate options in the answer area.

Answer:

Explanation:

Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/security/dynamic-data-masking

NEW QUESTION # 158
You have an Azure Synapse Analytics dedicated SQL pool.
You run PDW_SHOWSPACEUSED('dbo.FactInternetSales'); and get the results shown in the following table.

Which statement accurately describes the dbo.FactInternetSales table?

A. All distributions contain data.
B. The table contains less than 10,000 rows.
C. The table uses round-robin distribution
D. The table is skewed.

Answer: D

Explanation:
The rows per distribution can vary up to 10% without a noticeable impact on performance. Here the distribution varies more than 10%. It is skewed.
Note: SHOWSPACEUSED displays the number of rows, disk space reserved, and disk space used for a specific table, or for all tables in a Azure Synapse Analytics or Parallel Data Warehouse database.
This is a very quick and simple way to see the number of table rows that are stored in each of the 60 distributions of your database. Remember that for the most balanced performance, the rows in your distributed table should be spread evenly across all the distributions.
ROUND_ROBIN distributed tables should not be skewed. Data is distributed evenly across the nodes by design.
Reference:
https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-distribu
https://github.com/rgl/azure-content/blob/master/articles/sql-data-warehouse/sql-data-warehouse-manage-distrib

NEW QUESTION # 159
......

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