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Microsoft DP-203 Exam (page: 5)
Microsoft Data Engineering on Azure
Updated on: 28-Jul-2025

Viewing Page 5 of 75
DP-203 PDF 397 Questions

HOTSPOT (Drag and Drop is not supported)
You have an Azure Synapse Analytics dedicated SQL pool that contains the users shown in the following table.


User1 executes a query on the database, and the query returns the results shown in the following exhibit.


User1 is the only user who has access to the unmasked data.

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.
Hot Area:

  1. See Explanation section for answer.

Answer(s): A

Explanation:



Box 1: 0
The YearlyIncome column is of the money data type.
The Default masking function: Full masking according to the data types of the designated fields
Use a zero value for numeric data types (bigint, bit, decimal, int, money, numeric, smallint, smallmoney, tinyint, float, real).

Box 2: the values stored in the database
Users with administrator privileges are always excluded from masking, and see the original data without any mask.


Reference:

https://docs.microsoft.com/en-us/azure/azure-sql/database/dynamic-data-masking-overview



You have an enterprise data warehouse in Azure Synapse Analytics.

Using PolyBase, you create an external table named [Ext].[Items] to query Parquet files stored in Azure Data Lake Storage Gen2 without importing the data to the data warehouse.

The external table has three columns.
You discover that the Parquet files have a fourth column named ItemID.

Which command should you run to add the ItemID column to the external table?





Answer(s): C

Explanation:

Incorrect Answers:
A, D: Only these Data Definition Language (DDL) statements are allowed on external tables:

-CREATE TABLE and DROP TABLE
-CREATE STATISTICS and DROP STATISTICS
-CREATE VIEW and DROP VIEW


Reference:

https://docs.microsoft.com/en-us/sql/t-sql/statements/create-external-table-transact-sql



HOTSPOT (Drag and Drop is not supported)
You have two Azure Storage accounts named Storage1 and Storage2. Each account holds one container and has the hierarchical namespace enabled. The system has files that contain data stored in the Apache Parquet format.

You need to copy folders and files from Storage1 to Storage2 by using a Data Factory copy activity. The solution must meet the following requirements:

-No transformations must be performed.
-The original folder structure must be retained.
-Minimize time required to perform the copy activity.

How should you configure the copy activity? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.
Hot Area:

  1. See Explanation section for answer.

Answer(s): A

Explanation:



Box 1: Parquet
For Parquet datasets, the type property of the copy activity source must be set to ParquetSource.

Box 2: PreserveHierarchy
PreserveHierarchy (default): Preserves the file hierarchy in the target folder. The relative path of the source file to the source folder is identical to the relative path of the target file to the target folder.

Incorrect Answers:
FlattenHierarchy: All files from the source folder are in the first level of the target folder. The target files have autogenerated names.
MergeFiles: Merges all files from the source folder to one file. If the file name is specified, the merged file name is the specified name. Otherwise, it's an autogenerated file name.


Reference:

https://docs.microsoft.com/en-us/azure/data-factory/format-parquet
https://docs.microsoft.com/en-us/azure/data-factory/connector-azure-data-lake-storage



You have an Azure Data Lake Storage Gen2 container that contains 100 TB of data.

You need to ensure that the data in the container is available for read workloads in a secondary region if an outage occurs in the primary region. The solution must minimize costs.

Which type of data redundancy should you use?

  1. geo-redundant storage (GRS)
  2. read-access geo-redundant storage (RA-GRS)
  3. zone-redundant storage (ZRS)
  4. locally-redundant storage (LRS)

Answer(s): A



You plan to implement an Azure Data Lake Gen 2 storage account.

You need to ensure that the data lake will remain available if a data center fails in the primary Azure region. The solution must minimize costs. Which type of replication should you use for the storage account?

  1. geo-redundant storage (GRS)
  2. geo-zone-redundant storage (GZRS)
  3. locally-redundant storage (LRS)
  4. zone-redundant storage (ZRS)

Answer(s): D

Explanation:

Zone-redundant storage (ZRS) copies your data synchronously across three Azure availability zones in the primary region.

Incorrect Answers:
C: Locally redundant storage (LRS) copies your data synchronously three times within a single physical location in the primary region. LRS is the least expensive replication option, but is not recommended for applications requiring high availability or durability


Reference:

https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy



Viewing Page 5 of 75



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