Book Image

CompTIA Data+: DAO-001 Certification Guide

By : Cameron Dodd
Book Image

CompTIA Data+: DAO-001 Certification Guide

By: Cameron Dodd

Overview of this book

The CompTIA Data+ certification exam not only helps validate a skill set required to enter one of the fastest-growing fields in the world, but also is starting to standardize the language and concepts within the field. However, there’s a lot of conflicting information and a lack of existing resources about the topics covered in this exam, and even professionals working in data analytics may need a study guide to help them pass on their first attempt. The CompTIA Data + (DAO-001) Certification Guide will give you a solid understanding of how to prepare, analyze, and report data for better insights. You’ll get an introduction to Data+ certification exam format to begin with, and then quickly dive into preparing data. You'll learn about collecting, cleaning, and processing data along with data wrangling and manipulation. As you progress, you’ll cover data analysis topics such as types of analysis, common techniques, hypothesis techniques, and statistical analysis, before tackling data reporting, common visualizations, and data governance. All the knowledge you've gained throughout the book will be tested with the mock tests that appear in the final chapters. By the end of this book, you’ll be ready to pass the Data+ exam with confidence and take the next step in your career.
Table of Contents (24 chapters)
1
Part 1: Preparing Data
7
Part 2: Analyzing Data
13
Part 3: Reporting Data
19
Part 4: Mock Exams

Knowing what to consider when making a report

In this section, we will cover things that you need to take into account as you make these reports. This seems kind of vague, but these are concepts that you are expected to know for the exam and about which you may be asked in the context of a report-generating scenario. In other words, they will give you an example situation in which you are generating a report and ask how you would handle specific aspects depending on the situation. This is a part of the exam that confuses a lot of people. Not only do you need to understand these concepts but you also need to be able to apply them appropriately in a given scenario. These questions are designed to test experience, but you can figure them out if you take your time and think through them carefully. Don’t panic. Even if you don’t have experience, you can do this. Let’s jump right in.

Business requirements

The first list of things to consider is business requirements...