By Michael A. Pastore

Love Sybex. i believe they do a good task in organizing their details on know-how matters. nice publication for rookies.

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Example text

These goals set a framework for developing and maintaining a security plan. They are easy to express, but they hard to carry out. These goals are as follows: Prevention Prevention refers to preventing computer or information violations from occurring. Security breaches are also referred to as incidents. When an incident occurs, it may the result of a breakdown in security procedures. Incidents come in all shapes and sizes. Simple incidents include things such as losing a password or leaving a terminal logged on overnight.

WEP has is known to have vulnerabilities and is not considered highly secure. For additional information, see Chapter 4. 5. C. The Process layer interfaces with applications and encapsulates traffic through the Host-to-Host or Transport layer, the Internet layer and the Network Access layer. For more information, see Chapter 2. 6. B. L2TP is a tunneling protocol that can be used between LANs. L2TP is not secure, and you would want to use IPSec with it to provide data security. For more information, see Chapter 3.

IM and other systems allow unsuspecting users to download files that may contain viruses. Due to a weakness in the file extensions naming conventions, a file that appears to have one extension may actually have another extension. vbs. doc, but it is actually a Visual Basic script and could contain malicious code. For additional information, see Chapter 4. 16. B. Access Control Lists (ACLs) are used to allow or deny an IP address access to a network. ACL mechanisms are implemented in many routers, firewalls, and other network devices.

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