Book Image

Azure Data Engineer Associate Certification Guide

By : Newton Alex
Book Image

Azure Data Engineer Associate Certification Guide

By: Newton Alex

Overview of this book

Azure is one of the leading cloud providers in the world, providing numerous services for data hosting and data processing. Most of the companies today are either cloud-native or are migrating to the cloud much faster than ever. This has led to an explosion of data engineering jobs, with aspiring and experienced data engineers trying to outshine each other. Gaining the DP-203: Azure Data Engineer Associate certification is a sure-fire way of showing future employers that you have what it takes to become an Azure Data Engineer. This book will help you prepare for the DP-203 examination in a structured way, covering all the topics specified in the syllabus with detailed explanations and exam tips. The book starts by covering the fundamentals of Azure, and then takes the example of a hypothetical company and walks you through the various stages of building data engineering solutions. Throughout the chapters, you'll learn about the various Azure components involved in building the data systems and will explore them using a wide range of real-world use cases. Finally, you’ll work on sample questions and answers to familiarize yourself with the pattern of the exam. By the end of this Azure book, you'll have gained the confidence you need to pass the DP-203 exam with ease and land your dream job in data engineering.
Table of Contents (23 chapters)
1
Part 1: Azure Basics
3
Part 2: Data Storage
10
Part 3: Design and Develop Data Processing (25-30%)
15
Part 4: Design and Implement Data Security (10-15%)
17
Part 5: Monitor and Optimize Data Storage and Data Processing (10-15%)
20
Part 6: Practice Exercises

Troubleshooting a failed pipeline run

Azure Data Factory and Synapse pipelines provide detailed error messages when pipelines fail. Here are three easy steps to debugging a failed pipeline:

  • Check Datasets: Click on Linked Services and then click on the Test connection link to ensure that the linked services are working fine and that nothing has changed on the source. Here is an example of how to use Test connection on the Edit linked service page.

Figure 14.27 – Using Test connection for linked services

  • Use data previews to check your transformations: Turn the Data flow debug mode on and check the data previews for each of your pipeline activities, starting from the data source. This will help narrow down the issue. Here is an example of how to use Data preview:

Figure 14.28 – Using the Data preview option to see whether the data is getting populated correctly

  • If the issues persist, run the pipeline...