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Cisco CCNA/CCENT Exam 640-802, 640-822, 640-816 Preparation Kit by Dale Liu

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CHAPTER 15. Cisco WAN Configuration
Introduction
Although a majority of network administration is done within the local area network (LAN), Cisco also provides equipment that will allow companies to connect to wide area network (WAN) links. An individual looking to pass the Cisco Certified Network Associate (CCNA) examination should be aware of WAN technologies such as Integrated Services Digital Network (ISDN), Asynchronous Transfer Mode (ATM), Frame Relay, and T1. An individual pursuing a career in the field of networking also needs to know which of these technologies fall into the category of circuit-switched, packet-switched, or dedicated line.
It is also useful to have a basic understanding of the bandwidth associated with these WAN technologies. ...

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