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Answer: Data transformations during promotion from bronze to silver are used to clean and standardize the data, ensuring that it is ready for analysis and reporting. This includes tasks like removing duplicates, correcting data types, and filling in missing values.
The correct answer is A because the primary purpose of data transformations during the promotion from bronze to silver in a Lakehouse architecture is to clean and standardize the data. This ensures the data is of high quality and consistent, making it suitable for analysis and reporting. Tasks such as removing duplicates, correcting data types, and filling in missing values are typical examples of these transformations. While options B and C describe possible benefits of certain transformations, they do not represent the primary purpose. Option D is incorrect because transformations are necessary to address the raw and often inconsistent nature of data in the bronze layer.
Author: LeetQuiz Editorial Team
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In the context of a Lakehouse architecture, data transformations play a critical role when promoting data from the bronze to the silver layer. These transformations are essential for preparing the data for analytical processing. Considering factors such as data quality, consistency, and performance, which of the following best describes the primary purpose of these transformations? Choose the best option from the four provided.
A
Data transformations during promotion from bronze to silver are used to clean and standardize the data, ensuring that it is ready for analysis and reporting. This includes tasks like removing duplicates, correcting data types, and filling in missing values.
B
Data transformations during promotion from bronze to silver are primarily aimed at aggregating and summarizing the data to provide a high-level overview, which might not preserve the granularity needed for detailed analysis.
C
The main goal of data transformations in this context is to denormalize the data to reduce the need for complex joins, thereby improving query performance, but this might not address data quality issues.
D
Data transformations during the promotion from bronze to silver are optional and not necessary, as the data in the bronze layer is already in a perfect format for any analytical processing.