NTC/409 Global Network Architecture and Design

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Running head: STANDARDS1NTC/409 GLOBAL NETWORK ARCHITECTURE AND DESIGNWEEK 1DQ 1As a network architect, you will be responsible for the logical and physical design of thenetwork. Describe the differences between logical design and physical design. Howdoes creating the logical design help the architect with the physical design?How the data flows through the network from one device to the next, is the logicaldesign. It does not specify the technologies or standards to use unless there is arequirement needed in the network design. It focuses on the needs of the network, suchas high speed access and considers things such as network growth and usage, cost, IPaddress blocks, and security. The actual interfaces and physical cables are not shownon the logical design diagrams, which gives us the true meaning of the term logical. Thefoundation for security which provides the framework stages needed for security isprovided by a good logical design. Scalable security services should involve theservers, routers, switches, workstations and other devices on each layer using thenetwork. The logical design provides information which will help capture, configure, andmanage the complex essential parts that control the performance and capabilities of thenetwork. Physical network design is the physical way the computers are set up andconnected to the network including a diagram of the actual way the network will look.The actual layout of the physical part of the network includes the cables, hubs, routers,and switches, and workstations, and segments and host that appear on the actuallayout. How they are presented, is the difference between logical and physical design ofa network. The logical design is the one that shows the data flow, and the physicaldesign shows the devices, and connections of the network. The same network isdefined by the logical and physical networks working together.Fitzgerald, J., Dennis, A., & Durcikova, A. (2012).Business Data Communications andNetworking (11th ed.). Retrieved from The University of Phoenix eBook Collectiondatabase.DQ 2Describe a scenario where the traditional network design might be morefavorable than a building-block approach. What are the risks when using thetraditional network design model?Better suited for a structured environment a traditional network design isexpensive and time consuming. It is designed for a network with little traffic andonly does what it is designed to do, and takes time to develop, up to two years. Astructured systems design and analysis process is followed like used to buildapplication systems. There are four steps taken to design the network end userneeds, and applications are determined, the amount of data traffic is estimated,and circuits needed to support traffic are designed, cost estimates are obtained,

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