Implementing an effective serving layer requires consideration for the design, methods, and tools. In this course, you'll learn how traditional relational models can be replaced by the star schema and how to design a star schema. Then, you'll explore the purpose and structure of Parquet files used by Azure Databricks. You'll learn how to design and query a dimensional hierarchy. You'll move on to examine Azure Synapse Analytics, including deploying dedicated SQL pools and Apache Spark clusters. Finally you'll learn how to create shared metadata tables between Spark clusters. This course is one in a collection that prepares learners for the Microsoft Data Engineering on Microsoft Azure (DP-203) exam.