Page 434 - StudyBook.pdf

418 Chapter 6 • Infrastructure Security: Devices and Media

Magnetic tape, hard drives, and diskettes are all magnetic-based removable
media that offer different storage capabilities while still being vulnerable to
magnetic fields.

CDRs, flashcards, and Smart Cards are not based on magnetic technology,
and allow for a less vulnerable method of storing data on removable
media.

Exam Objectives

Frequently Asked Questions

The following Frequently Asked Questions, answered by the authors of this
book, are designed to both measure your understanding of the Exam Objectives
presented in this chapter, and to assist you with real-life implementation of
these concepts.

Q: Since application layer gateways are very secure firewalls, is this the kind I
should always recommend and use?

A: Not necessarily.Application-layer gateways provide the most intensive security,
but due to the amount of processing they have to do, their speed it limited.A
better solution is to analyze the security needs of the network and use the best
firewall based on these needs.

Q: What is the best remote access option for a typical network?
A: It depends on the needs of the business and the cost the company is willing to
absorb. Both RAS and VPN have their advantages. RAS is typically more
expensive to maintain in a large environment with many users, due to the
modem pool that has to be made available.VPNs can also be expensive if a
business opts to pay for the remote user’s ISP.

Q: Should I avoid implementing wireless because of its vulnerabilities?
A: By using encryption and configuring your wireless access point and network
cards properly, you can make a wireless network almost as secure as a wired net-
work.

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