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CISA – Certified Information Systems Auditor Study Guide - Second Edition

You're reading from  CISA – Certified Information Systems Auditor Study Guide - Second Edition

Product type Book
Published in Jun 2023
Publisher Packt
ISBN-13 9781803248158
Pages 330 pages
Edition 2nd Edition
Languages
Author (1):
Hemang Doshi Hemang Doshi
Profile icon Hemang Doshi

Table of Contents (14) Chapters

Preface 1. Chapter 1: Audit Planning 2. Chapter 2: Audit Execution 3. Chapter 3: IT Governance 4. Chapter 4: IT Management 5. Chapter 5: Information Systems Acquisition and Development 6. Chapter 6: Information Systems Implementation 7. Chapter 7: Information Systems Operations 8. Chapter 8: Business Resilience 9. Chapter 9: Information Asset Security and Control 10. Chapter 10: Network Security and Control 11. Chapter 11: Public Key Cryptography and Other Emerging Technologies 12. Chapter 12: Security Event Management 13. Other Books You May Enjoy

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...

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