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

VPN

A VPN is used to extend a private network through use of the internet in a secure manner. It provides a platform for remote users to get connected to the organization's private network.

The prime objective of VPN technology is to enable remote users and branch offices to access applications and resources available in private networks of organizations. A VPN is created by establishing a virtual point-to-point connection through the use of dedicated circuits or with tunneling protocols.

VPN technology, if properly configured, will reduce the risk associated with sensitive data traveling in an open public network.

Types of VPN

The following are some of the VPN connection types:

Type Description
A remote access VPN
  • Through a remote VPN, authorized users can connect to the corporate network from anywhere.
  • A VPN ensures that information is secured on the open internet
An intranet VPN
  • An intranet VPN is used to connect branch offices within an enterprise WAN.
An extranet...