Book Image

CISA – Certified Information Systems Auditor Study Guide

By : Hemang Doshi
Book Image

CISA – Certified Information Systems Auditor Study Guide

By: Hemang Doshi

Overview of this book

Are you looking to prepare for the CISA exam and understand the roles and responsibilities of an information systems (IS) auditor? The CISA - Certified Information Systems Auditor Study Guide is here to help you get started with CISA exam prep. This book covers all the five CISA domains in detail to help you pass the exam. You’ll start by getting up and running with the practical aspects of an information systems audit. The book then shows you how to govern and manage IT, before getting you up to speed with acquiring information systems. As you progress, you’ll gain knowledge of information systems operations and understand how to maintain business resilience, which will help you tackle various real-world business problems. Finally, you’ll be able to assist your organization in effectively protecting and controlling information systems with IT audit standards. By the end of this CISA book, you'll not only have covered the essential concepts and techniques you need to know to pass the CISA certification exam but also have the ability to apply them in the real world.
Table of Contents (19 chapters)
1
Section 1: Information System Auditing Process
4
Section 2: Governance and Management of IT
7
Section 3: Information Systems Acquisition, Development, and Implementation
10
Section 4: Information System Operations and Business Resilience
13
Section 5: Protection of Information Assets

Virtualization

Virtualization makes it possible to run multiple operating systems simultaneously on a single computer. It refers to the act of creating a virtual (rather than an actual) version of system-related hardware. With the use of virtualization, organizations can increase the efficiency and reduce the cost of IT operations. Virtual resources such as the server, desktop, Operating System, storage, and networks can be created with the help of virtualization tools.

The most important element of virtualization is the hypervisor, which aids in the creation of virtual resources.

Some important terms for virtualization are as follows:

  • Hypervisor: Software or hardware used to create virtual resources
  • Host: The original computer
  • Guest: Virtual resources created by a hypervisor

The following are some of the risks of virtualization:

  • The improper configuration of hypervisors may allow unauthorized access to guests.
  • Attackers may be able to gain unauthorized access with the help of mechanisms...