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)
Part 1: Preparing Data
Part 2: Analyzing Data
Part 3: Reporting Data
Part 4: Mock Exams

Practice questions

Let’s try to practice the material in this chapter with a few example questions.


  1. Data4U, a Software as a Service (SaaS) company, would like to create a small dataset that includes de-identified data about how their clients have improved with the use of their software. They want every sales representative in the company to have access to this data to show to potential clients. What form of access requirement is this?
    1. User group-based
    2. Encryption-based
    3. Role-based
    4. Transmission-based
  2. Which part of the Data Use Agreement includes explicit details about how the data is not supposed to be used?
    1. Acceptable use policy
    2. Data processing
    3. Data deletion
    4. Data retention
  3. If you suspect that a data breach has occurred, which of the following is an appropriate response?
    1. Delete the data
    2. Ignore it
    3. Inform the impacted parties
    4. Do nothing
  4. Which of the following variables would be considered PII?
    1. Geolocation
    2. Social media post
    3. Social Security number
    4. All of the above
  5. ...