Please answer each question separately using a paragraph or two.
1.Network security has become a complicated topic due to the many types of threats to network information and systems. To defend against these threats, a layered network defense strategy must be utilized. What are the major components of a layered network defense model and what role does each of the layers play in the overall defense of the network against security threats?
2.Networks often contain valuable information and are the target of threats to acquire the information or damage the information. Intruders pose a significant threat to networks and the first step in thwarting intrusion is to understand when and how it is occurring. What are some of the ways intruders can be detected in a network and what can be done to reduce this network threat?
3.The expansion of the Internet has created a significant number of new network threats. While businesses combat Internet security threats, employees continue to expand their use of the Internet. What limitations should be placed on the use of the Internet at work to reduce security threats while still allowing employees to reap the benefits provided by Internet access?
4.Wireless computing has become a significant part of business networking due to the rapid expansion of the use of mobile devices in business environments. Security risks have increased as a result. What steps should a business take to ensure productive support of wireless communications while maintaining strong security?
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