Book Image

CompTIA Security+ Certification Guide

By : Ian Neil
Book Image

CompTIA Security+ Certification Guide

By: Ian Neil

Overview of this book

CompTIA Security+ is a worldwide certification that establishes the fundamental knowledge required to perform core security functions and pursue an IT security career. CompTIA Security+ Certification Guide is a best-in-class exam study guide that covers all of CompTIA Security+ 501 exam objectives. It is authored by Ian Neil, who is a world-class trainer of CompTIA Security+ 501. Packed with self-assessment scenarios and realistic exam questions, this guide will help you master the core concepts to succeed in the exam the first time you take it. Using relevant examples, you will learn all the important security fundamentals from Certificates and Encryption to Identity and Access Management concepts. You will then dive into the important domains of the exam; namely, threats, attacks and vulnerabilities, technologies and tools, architecture and design, risk management, and cryptography and Public Key Infrastructure (PKI). This book comes with over 600 practice questions with detailed explanation that is at the exam level and also includes two mock exams to help you with your study plan. This guide will ensure that encryption and certificates are made easy for you.
Table of Contents (18 chapters)
12
Mock Exam 1
13
Mock Exam 2
15
Acronyms

Business Impact Analysis Concepts

The following concepts are used to carry out the business impact analysis:

  • Recovery Point Object (RPO): RPO is how much time a company can last without its data before it affects operations. This is also known as acceptable downtime; if a company agrees that it can be without data for three hours, then the RPO is three hours. If the IT systems in a company suffer a loss of service at 13:00 hours, then the RPO would be 16:00 hours. Any repair beyond that time would have an adverse impact on the business.
  • Recovery Time Object (RTO): RTO is the time that the company has been returned to an operational state. In the RPO scenario, we would like the RTO to be before 16:00 hours. If the RTO is beyond 16:00 hours, then once again it has an adverse impact on the business.
  • Mean Time to Repair (MTTR): MTTR is the average amount of time it takes to repair...