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

Designing reports

This section is all about the design elements of a report. This is something that is often ignored, and several people have wondered why it is in the exam, but I promise it is important. A lot of these things are to make your reports cleaner and easier to understand, but they also make your reports look more professional. Even if you are a great data analyst, if your reports look like a two-year-old hopped up on sugar went hog-wild with an entire box of crayons, no one will take you or your report seriously. The sad truth is that you will often be judged by the polish of your work more than its content. Let’s figure out how to make your reports shine!

Branding

Before we talk about anything else, we will talk about corporate reporting, specifically branding. Some companies, especially larger ones, will have a brand, or a specific image they want to project. That means that they may have color codes, logos, watermarks, fonts, layouts, or even full templates...