WAN requires a number of physical components to enable a connection. These will differ depending upon the type of connection you are using (e.g., ISDN, ADSL, Frame Relay, leased line, etc.) and other factors, such as back-up connections and the number of incoming networks.
Figure 41.3 – Basic WAN Components
Figure 41.3 above shows a basic serial connection going out to an ISP. As the customer, you are responsible for the . . .
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