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CompTIA Data+: DAO-001 Certification Guide

CompTIA Data+: DAO-001 Certification Guide

By : Cameron Dodd
5 (11)
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CompTIA Data+: DAO-001 Certification Guide

CompTIA Data+: DAO-001 Certification Guide

5 (11)
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)
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1
Part 1: Preparing Data
7
Part 2: Analyzing Data
13
Part 3: Reporting Data
19
Part 4: Mock Exams

Exam format

CompTIA Data+: DAO-001 was launched on February 28, 2022. You have 90 minutes to answer 90 questions. Most of the questions will be multiple choice, but there will be some performance-based questions, in which you will be presented with an example of something you would encounter on the job and you must make appropriate decisions based on it. Scoring is on a scale of 100 to 900, with 675 being considered a passing score. For the most up-to-date information on the exam, you can check out the exam website at https://www.comptia.org/certifications/data. The testing provider is Pearson VUE, and you can take the test online or at one of their approved testing centers. The following table breaks down roughly how many questions will fall into each domain:

Data Concepts and Environments

Data Mining

Data Analysis

Visualization

Data Governance, Quality, and Control

15%

25%

23%

23%

14%

Table 1.1 – Percentage breakdown of each domain

Who should take the exam?

The test is aimed at those early in their data analytics career – specifically, those who have been working in a data analytics position for 1.5 to 2 years. This is not a requirement but a suggestion, because people with less experience than this may not have encountered all the concepts covered by the exam. At the end of the day, anyone who is eager to get further in the exciting field of data science should take this exam. Rest assured that even if you don’t have personal experience with any of the concepts on the exam, they are covered here in this book!

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CompTIA Data+: DAO-001 Certification Guide
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