Book Image

Certified Information Security Manager Exam Prep Guide - Second Edition

By : Hemang Doshi
Book Image

Certified Information Security Manager Exam Prep Guide - Second Edition

By: Hemang Doshi

Overview of this book

CISM is a globally recognized and much sought-after certification in the field of IT security. This second edition of the Certified Information Security Manager Exam Prep Guide is up to date with complete coverage of the exam content through comprehensive and exam-oriented explanations of core concepts. Written in a clear, succinct manner, this book covers all four domains of the CISM Review Manual. With this book, you’ll unlock access to a powerful exam-prep platform which includes interactive practice questions, exam tips, and flashcards. The platform perfectly complements the book and even lets you bring your questions directly to the author. This mixed learning approach of exploring key concepts through the book and applying them to answer practice questions online is designed to help build your confidence in acing the CISM certification. By the end of this book, you'll have everything you need to succeed in your information security career and pass the CISM certification exam with this handy, on-the-job desktop reference guide.
Table of Contents (12 chapters)

Operational Risk Management

Operational risk means risk related to processes and systems that can interrupt business operations. Managing operational risk is one of the key roles of an information security manager. Some of the key aspects of operational risk that an information security manager must understand are as follows:

  • Recovery time objective (RTO)
  • Recovery point objective (RPO)
  • Service delivery objective (SDO)
  • Maximum tolerable outage (MTO)
  • Allowable interruption window (AIW)

Recovery Time Objective

The Recovery Time Objective (RTO) is a measure of the user's tolerance to system downtime. In other words, the RTO is the extent of 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.

Recovery Point Objective

The Recovery Point Objective (RPO) is a measure of the user's tolerance to data loss. In other words, the RPO is the...