Book Image

CISA – Certified Information Systems Auditor Study Guide - Second Edition

By : Hemang Doshi
5 (3)
Book Image

CISA – Certified Information Systems Auditor Study Guide - Second Edition

5 (3)
By: Hemang Doshi

Overview of this book

With the latest updates and revised study material, this second edition of the Certified Information Systems Auditor Study Guide provides an excellent starting point for your CISA certification preparation. The book strengthens your grip on the core concepts through a three-step approach. First, it presents the fundamentals with easy-to-understand theoretical explanations. Next, it provides a list of key aspects that are crucial from the CISA exam perspective, ensuring you focus on important pointers for the exam. Finally, the book makes you an expert in specific topics by engaging you with self-assessment questions designed to align with the exam format, challenging you to apply your knowledge and sharpen your understanding. Moreover, the book comes with lifetime access to supplementary resources on an online platform, including CISA flashcards, practice questions, and valuable exam tips. With unlimited access to the website, you’ll have the flexibility to practice as many times as you desire, maximizing your exam readiness. By the end of this book, you’ll have developed the proficiency to successfully obtain the CISA certification and significantly upgrade your auditing career.
Table of Contents (14 chapters)

Recovery Time Objective (RTO) and Recovery Point Objective (RPO)

The RTO and RPO are crucial to designing a disaster recovery strategy. Hence, these two are extremely important aspects to understand from the exam perspective RTO.

The RTO is a measure of the organization’s tolerance to system downtime. In other words, the RTO is the extent of the acceptable system downtime. For example, an RTO of 2 hours indicates that an organization will not be overly impacted if its system is down for up to 2 hours.

RPO

The RPO is a measure of the organization’s tolerance to data loss. In other words, the RPO is the extent of acceptable data loss. For example, an RPO of 2 hours indicates that an organization will not be overly impacted if it loses data for up to 2 hours.

The following figure further explains each of them:

Figure 8.3: RTO and RPO

Figure 8.3: RTO and RPO

The following practical examples will help you better understand the preceding diagram:

Example...