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

Concepts

Information Security

Author (1):

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

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:

...

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Authors (1)

Hemang Doshi

Hemang Doshi has more than 15 years of experience in the field of system audit, IT risk and compliance, internal audit, risk management, information security audit, third-party risk management, and operational risk management. He has authored several books for certification such as CISA, CRISC, CISM, DISA, and enterprise risk management.

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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