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)

Wireless Networks

A network connection not involving the use of a cable or wire is known as a wireless network. A wireless network is a computer network that uses wireless data connections between communication endpoints (nodes). Cell phone networks and wireless local area networks are examples of wireless networks.

CISA aspirants should be aware of the following controls regarding the protection of wireless (Wi-Fi) security:

  • Enabling MAC filtering
  • Enabling encryption
  • Disabling SSID
  • Disabling DHCP

Enabling MAC Filtering

Each system/PC/laptop/mobile has a unique identification number, which is known as the MAC address. This control allows access to only selected and authorized devices. Hence, the router restricts other unauthorized devices from accessing the network. Blacklist features can be used to specifically reject some MAC addresses.

A router has the option to enable MAC filtering, as indicated in the following screenshot:

Figure 10.7: MAC filtering ...