Medallion Lakehouse Architecture: Section 1, Q3
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Questions and Answers

What is the primary purpose of the medallion lakehouse architecture?

  • To validate and deduplicate data
  • To replace other dimensional modeling techniques
  • To create a single source of truth for enterprise data products (correct)
  • To optimize data storage for efficient analytics

    • What is the key characteristic of the bronze layer in the medallion architecture?

  • It contains validated and enriched data
  • It is optimized for efficient analytics
  • It is normalized for downstream use cases
  • It maintains the raw state of the data source (correct)

    • What is the benefit of adopting an organizational mindset focused on curating data-as-products?

  • It ensures data is only accessible to authorized personnel
  • It allows for faster data ingestion and processing
  • It enables the creation and maintenance of validated datasets (correct)
  • It reduces the need for data normalization

    • What is the outcome of data passing through multiple layers of validations and transformations in the medallion architecture?

    <p>Data is stored in a layout optimized for efficient analytics</p> Signup and view all the answers

    What is the purpose of the silver layer in the medallion architecture?

    <p>To validate and deduplicate data</p> Signup and view all the answers

    What is the primary advantage of using the medallion architecture?

    <p>It ensures data quality and consistency throughout the data processing pipeline</p> Signup and view all the answers

    What is a characteristic of data in the silver layer?

    <p>It is validated and enriched.</p> Signup and view all the answers

    What is the purpose of the gold layer?

    <p>To power analytics, machine learning, and production applications.</p> Signup and view all the answers

    What is a benefit of implementing a silver layer?

    <p>It immediately unlocks many of the potential benefits of the lakehouse.</p> Signup and view all the answers

    What is a characteristic of gold tables?

    <p>They contain data that has been transformed into knowledge.</p> Signup and view all the answers

    Why are gold tables often stored in a separate storage container?

    <p>To avoid cloud limits on data requests.</p> Signup and view all the answers

    What is a benefit of using gold tables?

    <p>They provide low-latency query performance.</p> Signup and view all the answers

    Match the following layers of the medallion lakehouse architecture with their data quality:

    <p>Bronze layer = Raw, unvalidated data Silver layer = Validated data Gold layer = Enriched data Data source = Original, unprocessed data</p> Signup and view all the answers

    Match the following characteristics with the respective layers of the medallion lakehouse architecture:

    <p>Maintains the raw state of the data source = Bronze layer Contains validated data = Silver layer Optimized for efficient analytics = Gold layer Transformed data = Silver layer</p> Signup and view all the answers

    Match the following data layers of the medallion lakehouse architecture with their primary uses:

    <p>Bronze layer = Data ingestion Silver layer = Data validation and deduplication Gold layer = Powering analytics Data source = Original data collection</p> Signup and view all the answers

    Match the following characteristics with the respective layers of the medallion lakehouse architecture:

    <p>Unprocessed data = Bronze layer Transformed and validated data = Silver layer Optimized data for analytics = Gold layer Original data source = Data source</p> Signup and view all the answers

    Match the following layers of the medallion lakehouse architecture with their primary data characteristics:

    <p>Bronze layer = Unvalidated data Silver layer = Deduplicated data Gold layer = Enriched data Data source = Original data</p> Signup and view all the answers

    Match the following benefits with the respective layers of the medallion lakehouse architecture:

    <p>Provides raw data for analysis = Bronze layer Offers validated data for analytics = Silver layer Delivers enriched data for advanced analytics = Gold layer Offers original data source = Data source</p> Signup and view all the answers

    Match the following characteristics with their corresponding layers in the medallion architecture:

    <p>Nearly raw state = Bronze layer Validated, enriched version = Silver layer Highly refined and aggregated = Gold layer Efficient storage format = Bronze layer</p> Signup and view all the answers

    Match the following benefits with their corresponding layers in the medallion architecture:

    <p>Unlocking many potential benefits = Silver layer Powers analytics, machine learning, and production applications = Gold layer Enhanced discoverability = Bronze layer Efficient storage and retrieval = Silver layer</p> Signup and view all the answers

    Match the following descriptions with their corresponding layers in the medallion architecture:

    <p>Contains the entire data history = Bronze layer Represents data that has been transformed into knowledge = Gold layer Provides the ability to recreate any state of a given data system = Bronze layer Contains data that can be trusted for downstream analytics = Silver layer</p> Signup and view all the answers

    Match the following functionalities with their corresponding layers in the medallion architecture:

    <p>Retaining the full, unprocessed history of each dataset = Bronze layer Validating and deduplicating data = Silver layer Handling aggregations, joins, and filtering = Gold layer Supporting low latency query performance = Gold layer</p> Signup and view all the answers

    Match the following characteristics with their corresponding layers in the medallion architecture:

    <p>Grows over time and is appended incrementally = Bronze layer Contains data that can be trusted for downstream analytics = Silver layer Is often stored in a separate storage container = Gold layer Provides the ability to recreate any state of a given data system = Bronze layer</p> Signup and view all the answers

    Match the following benefits with their corresponding layers in the medallion architecture:

    <p>Allows for control costs and establishes SLAs for data freshness = Gold layer Provides enhanced discoverability = Bronze layer Unlocks many potential benefits of the lakehouse = Silver layer Supports low latency query performance = Gold layer</p> Signup and view all the answers

    Match the following characteristics with their corresponding layers in the medallion architecture:

    <p>May contain more than one table = Silver layer Contains data that has been transformed into knowledge = Gold layer Retains the full, unprocessed history of each dataset = Bronze layer Is often used for core responsibilities and sharing with customers = Gold layer</p> Signup and view all the answers

    Match the following functionalities with their corresponding layers in the medallion architecture:

    <p>Adds additional metadata on ingest = Bronze layer Validates and deduplicates data = Silver layer Powers analytics, machine learning, and production applications = Gold layer Handles aggregations, joins, and filtering = Gold layer</p> Signup and view all the answers

    Study Notes

    Medallion Lakehouse Architecture

    • A series of data layers that denote the quality of data stored in the lakehouse, recommended by Databricks
    • Ensures atomicity, consistency, isolation, and durability as data passes through multiple layers of validations and transformations

    Bronze Layer (Raw)

    • Contains unvalidated data
    • Data ingested is:
      • Maintained in its raw state
      • Appended incrementally and grows over time
      • A combination of streaming and batch transactions
    • Additional metadata may be added for enhanced discoverability, description of the state of the source dataset, and optimized performance in downstream applications

    Silver Layer (Validated)

    • Represents validated, enriched data that can be trusted for downstream analytics
    • Data is:
      • Validated and deduplicated
      • May contain more than one table
    • Implementing a silver layer efficiently unlocks many benefits of the lakehouse

    Gold Layer (Enriched)

    • Contains highly refined and aggregated data that powers analytics, machine learning, and production applications
    • Data is:
      • Transformed into knowledge, rather than just information
      • Often stored in a separate storage container to help avoid cloud limits on data requests
    • Updates are completed as part of regularly scheduled production workloads, controlling costs and allowing for SLAs for data freshness
    • Analysts largely rely on gold tables for their core responsibilities, and data shared with customers would rarely be stored outside this level

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    Description

    url: https://learn.microsoft.com/en-us/azure/databricks/lakehouse/medallion Learn about the medallion lakehouse architecture, a multi-layered approach to building a single source of truth for enterprise data products. Understand the bronze, silver, and gold layers and their roles in data processing.

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