ccna 200 301 syllabus definition and example of alliteration

ccna 200 301 syllabus definition and example of alliteration.1.4 Topology Selection, Backbones and Network SegmentsYou are already familiar with many different types of network topologies, now you need to know how to choose the right topology type for your network and also need to understand backbone and network segments one by one as detailed in the last part of this chapter.Choosing the Right TopologyNow you not only understand that there are multiple network topologies to choose from, but you also know the pros and cons of each topology type. All you need to do at this point is "ask the right questions. What level of fault tolerance do you need? Can this network grow like a weed - do you need to configure it quickly and easily, often? In other words, what level of network scalability do you need?For example, if you only need to connect a small number of computers in a room and provide a well-designed and cost-effective solution for this, then deploying a wireless access point and some wireless cards is definitely your best bet, because with a wireless solution you don't have to buy a lot of cables and it's extremely easy to set up. Conversely, if you need to design a solid solution for a growing business that already has a large network, you're better off using a star topology with wired connections, as a star topology can provide for future network changes. Keep in mind that a star topology really becomes stellar when it comes to adding, removing, or any other changes to your network: it can achieve your needs quickly, efficiently, and cost-effectively.As another example, if you are providing a network design solution for an ISP that requires 99.9% availability, i.e., no more than 8 hours of downtime throughout the year, then you need to provide the most stringent fault tolerance mechanisms. Do you remember which topology provides the best fault tolerance mechanism (hint - Internet) ? Your first choice is to use a hybrid topology or a partially meshed topology. But be aware that in a partially meshed topology you will need to maintain up to (-1)/2 connections - the final number of connections will be much higher than your budget !Here's what you need to consider when choosing the right topology type for your networkCost.. Ease of installationEase of maintenance