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HOTSPOT You have an Azure subscription that contains an Azure Synapse Analytics dedicated SQL pool named Pool1 and an Azure Data Lake Storage account named storage1. Storage1 requires secure transfers. You need to create an external data source in Pool1 that will be used to read .orc files in storage1. How should you complete the code? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.
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HOTSPOT You need to output files from Azure Data Factory. Which file format should you use for each type of output? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.
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Question 49 - DP-203 discussion

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You have an Azure Synapse Analytics dedicated SQL pool named Pool1 and a database named DB1. DB1 contains a fact table named Table1. You need to identify the extent of the data skew in Table1.

What should you do in Synapse Studio?

A.
Connect to the built-in pool and run sys.dm_pdw_nodes_db_partition_stats.
Answers
A.
Connect to the built-in pool and run sys.dm_pdw_nodes_db_partition_stats.
B.
Connect to Pool1 and run DBCC CHECKALLOC.
Answers
B.
Connect to Pool1 and run DBCC CHECKALLOC.
C.
Connect to the built-in pool and run DBCC CHECKALLOC.
Answers
C.
Connect to the built-in pool and run DBCC CHECKALLOC.
D.
Connect to Pool1 and query sys.dm_pdw_nodes_db_partition_stats.
Answers
D.
Connect to Pool1 and query sys.dm_pdw_nodes_db_partition_stats.
Suggested answer: D

Explanation:

Microsoft recommends use of sys.dm_pdw_nodes_db_partition_stats to analyze any skewness in the data. Reference:

https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-db-partition-stats-transact-sql https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/cheat-sheet

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asked 02/10/2024
So young Jang
27 questions
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