Preface

CompTIA Data+ is an early-career data analytics certification for professionals tasked with developing and promoting data-driven business decision-making. Collecting, analyzing, and reporting on data can drive priorities and lead business decision-making. CompTIA Data+ validates that certified professionals have the skills required to facilitate data-driven business decisions. With this guide, you’ll understand how to prepare, analyze, and report data for better insights.

You will start with an introduction to the Data+ certification exam format and then quickly dive into preparing data. You will learn about collecting, cleaning, and processing the data, along with data wrangling and manipulation. Moving on, you will learn to analyze data, in which we will talk about types of analysis, common hypothesizing techniques, and statistical analyses. We then will move on to reporting the data. We will learn about the common types of report visualizations and data governance. Later, you will test all the knowledge you’ve gained throughout the book with the help of some mock tests.

By the end of this book, you’ll have covered everything you need to pass the AWS DBS-C01 certification exam and have a handy, on-the-job desk reference guide.