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Lesson 3. Using Network Services > Understanding the Different Servers

Understanding the Different Servers

Like any resource, network resources are limited. When an organization signs on with an Internet service provider (ISP), the ISP provides a limited number of IP addresses and a set bandwidth or maximum amount of network traffic allowed to the organization. To prevent extra charges, the organization must use the allocated addresses and bandwidth intelligently.

A company with unlimited resources could purchase an IP address for each computer on its network. However, this is inefficient because every company has intermittent network users, such as those who use portable computers and visitors. A more efficient approach is to purchase fewer IP addresses and allocate them dynamically as needed using a DHCP server.


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