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Data-engineering-nanodegree

Projects done in the Data Engineering Nanodegree by Udacity.com

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Course 1: Data Modeling

Introduction to Data Modeling

➔ Understand the purpose of data modeling

➔ Identify the strengths and weaknesses of different types of databases and data storage techniques

➔ Create a table in Postgres and Apache Cassandra

Relational Data Models

➔ Understand when to use a relational database

➔ Understand the difference between OLAP and OLTP databases

➔ Create normalized data tables

➔ Implement denormalized schemas (e.g. STAR, Snowflake)

NoSQL Data Models

➔ Understand when to use NoSQL databases and how they differ from relational databases

➔ Select the appropriate primary key and clustering columns for a given use case

➔ Create a NoSQL database in Apache Cassandra

Project: Data Modeling with Postgres and Apache Cassandra

Course 2: Cloud Data Warehouses

Introduction to the Data Warehouses

➔ Understand Data Warehousing architecture

➔ Run an ETL process to denormalize a database (3NF to Star)

➔ Create an OLAP cube from facts and dimensions

➔ Compare columnar vs. row oriented approaches

Introduction to the Cloud with AWS

➔ Understand cloud computing

➔ Create an AWS account and understand their services

➔ Set up Amazon S3, IAM, VPC, EC2, RDS PostgreSQL

Implementing Data Warehouses on AWS

➔ Identify components of the Redshift architecture

➔ Run ETL process to extract data from S3 into Redshift

➔ Set up AWS infrastructure using Infrastructure as Code (IaC)

➔ Design an optimized table by selecting the appropriate distribution style and sorting key

Project 2: Data Infrastructure on the Cloud

Course 3: Data Lakes with Spark

The Power of Spark

➔ Understand the big data ecosystem

➔ Understand when to use Spark and when not to use it

Data Wrangling with Spark

➔ Manipulate data with SparkSQL and Spark Dataframes

➔ Use Spark for ETL purposes

Debugging and Optimization

➔ Troubleshoot common errors and optimize their code using the Spark WebUI

Introduction to Data Lakes

➔ Understand the purpose and evolution of data lakes

➔ Implement data lakes on Amazon S3, EMR, Athena, and Amazon Glue

➔ Use Spark to run ELT processes and analytics on data of diverse sources, structures, and vintages

➔ Understand the components and issues of data lakes

Project 3: Big Data with Spark

Course 4: Automate Data Pipelines

Data Pipelines

➔ Create data pipelines with Apache Airflow

➔ Set up task dependencies

➔ Create data connections using hooks

Data Quality

➔ Track data lineage

➔ Set up data pipeline schedules

➔ Partition data to optimize pipelines

➔ Write tests to ensure data quality

➔ Backfill data

Production Data Pipelines

➔ Build reusable and maintainable pipelines

➔ Build your own Apache Airflow plugins

➔ Implement subDAGs

➔ Set up task boundaries

➔ Monitor data pipelines

Project: Data Pipelines with Airflow


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