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Question 186 - DP-203 discussion

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You are planning a streaming data solution that will use Azure Databricks. The solution will stream sales transaction data from an online store. The solution has the following specifications:

The output data will contain items purchased, quantity, line total sales amount, and line total tax amount. Line total sales amount and line total tax amount will be aggregated in Databricks. Sales transactions will never be updated. Instead, new rows will be added to adjust a sale. You need to recommend an output mode for the dataset that will be processed by using Structured Streaming. The solution must minimize duplicate data. What should you recommend?

A.
Update
Answers
A.
Update
B.
Complete
Answers
B.
Complete
C.
Append
Answers
C.
Append
Suggested answer: B

Explanation:

By default, streams run in append mode, which adds new records to the table.https://docs.databricks.com/delta/delta-streaming.html

asked 02/10/2024
Emanuel Sifuentes
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