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New Microsoft Azure Data Engineer Associate DP-203 Exam Practice Questions

Total 355 Questions

Last Updated On: 24-Feb-2025

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Question # 1

You have an Azure Synapse Analytics dedicated SQL Pool1. Pool1 contains a partitioned fact table named dbo.Sales and a staging table named stg.Sales that has the matching table and partition definitions. You need to overwrite the content of the first partition in dbo.Sales with the content of the same partition in stg.Sales. The solution must minimize load times. What should you do?
A. Switch the first partition from dbo.Sales to stg.Sales.
B. Switch the first partition from stg.Sales to dbo. Sales.
C. Update dbo.Sales from stg.Sales.
D. Insert the data from stg.Sales into dbo.Sales.

Insert the data from stg.Sales into dbo.Sales.

Question # 2

You plan to ingest streaming social media data by using Azure Stream Analytics. The data will be stored in files in Azure Data Lake Storage, and then consumed by using Azure Datiabricks and PolyBase in Azure Synapse Analytics. You need to recommend a Stream Analytics data output format to ensure that the queries from Databricks and PolyBase against the files encounter the fewest possible errors. The solution must ensure that the tiles can be queried quickly and that the data type information is retained. What should you recommend?
A. Parquet
B. Avro
C. CSV
D. JSON

Avro

Explanation: The Avro format is great for data and message preservation.Avro schema
with its support for evolution is essential for making the data robust for streaming
architectures like Kafka, and with the metadata that schema provides, you can reason on
the data. Having a schema provides robustness in providing meta-data about the data
stored in Avro records which are self- documenting the
data.References:http://cloudurable.com/blog/avro/index.html

Question # 3

You have several Azure Data Factory pipelines that contain a mix of the following types of activities. * Wrangling data flow * Notebook * Copy * jar Which two Azure services should you use to debug the activities? Each correct answer presents part of the solution NOTE: Each correct selection is worth one point.
A. Azure HDInsight
B. Azure Databricks
C. Azure Machine Learning
D. Azure Data Factory
E. Azure Synapse Analytics

Azure Machine Learning

Azure Synapse Analytics

Question # 4

You have an Azure Data Factory pipeline that has the activities shown in the following exhibit.

Question # 5

You are designing an enterprise data warehouse in Azure Synapse Analytics that will contain a table named Customers. Customers will contain credit card information. You need to recommend a solution to provide salespeople with the ability to view all the entries in Customers. The solution must prevent all the salespeople from viewing or inferring the credit card information. What should you include in the recommendation?
A. data masking
B. Always Encrypted
C. column-level security
D. row-level security

data masking

Explanation:
SQL Database dynamic data masking limits sensitive data exposure by masking it to nonprivileged
users.
The Credit card masking method exposes the last four digits of the designated fields and
adds a constant string as a prefix in the form of a credit card.
Example: XXXX-XXXX-XXXX-1234
Reference:
https://docs.microsoft.com/en-us/azure/sql-database/sql-database-dynamic-data-maskingget-
started

Question # 6

You have an on-premises data warehouse that includes the following fact tables. Both tables have the following columns: DateKey, ProductKey, RegionKey. There are 120 unique product keys and 65 unique region keys.

Question # 7

You plan to develop a dataset named Purchases by using Azure databricks Purchases will
contain the following columns:
• ProductID
• ItemPrice
• lineTotal
• Quantity
• StorelD
• 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
rode? To answer, select the appropriate options In the answer area.
NOTE: Each correct selection is worth one point.

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