This module focuses on the examination of data communication by learning more about how separate Local area networks connect through reading Chapter 7 Backbone Network, chapter 8 Wide Area Networks, and chapter 9 The Internet. Over these chapter, I have learned the internetworking devices used in Backbone Networks such as Switches, Routers, and Gateways, understood several common backbone architectures, the best practice recommendations for backbone design, and the way to improve BN performance. In chapter 8, I’ve learned WAN design and architectures such as circuit-switched, dedicated-circuit, and packet-switched services and architectures, and how to improve WAN performance as well as learning Virtual Private Network (VPN) in the basic architecture, VPN types and how VPNs work. Also, the chapter 9 gave me the overall design of the Internet so I understood about DSL, cable modem, fiber to the home, and WiMax. Again, I’ve learned more useful lessons about broadband technology, WAN technology, Physical Network Segmentation, and wireless concepts from Eli The Computer Guy and Professor Messer. After watching those video, I have had more knowledge in WAN and know how to design the network system to manage the system easily.
The learning artifact I chose for this module is the lesson from Eli The Computer Guy in Physical Network Segmentation. From this video I have learned a demark point which is the boundary where the authority or responsibility of the network belongs to a different organization, and who is responsible for a network problem as well as understanding the reason why we have to use Main Distribution Frame (MDF) and Intermediate Distribution Frame (IDF) in a network system. understanding this concept will help any IT Man on the world manage the network system efficiently.
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