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)

Firewall Types and Implementation

A firewall is a network security system designed to prevent unauthorized access to networks. It monitors and controls incoming and outgoing network traffic as per the defined rules. A firewall can be implemented either in software or hardware form.

The prime objective of a firewall is to allow only authorized uses of the system and network and thereby restrict unauthorized access.

The CISA Review Manual covers the following types and implementations of firewalls:

...

Types of Firewall

Types of Firewall Implementation

Packet Filtering Router

Dual-Homed Firewall

Stateful Inspection

Screened-Host Firewall

Circuit Level

Screened-Subnet Firewall

Application-Level