ccna 200 301 syllabus definition and example of oxymoron

ccna 200 301 syllabus definition and example of oxymoron.Bus topologyStar topologyRing topologyMesh topologyPoint-to-point topology Point-to-Multipoint Topology . Hybrid topology 1.3.1 Bus Topology Bus Topology is the simplest of the bunch, and this type of topology really bears some resemblance to a bus. (Well, of course - actually, it looks more like a bus running on an infuriating wasteland!) Anyway, the bus topology consists of two different terminals, each with a computer connected to a 1.3 Physical Network Topology cable and using this cable to communicate. In the past, we have connected computers to the backbone cable in a piggyback fashion, but this did not work well, so we switched to using a branch cable (Drop Cable) to connect more computers. With 10Base2 Ethernet, however, you can connect devices anywhere on the backbone cable using only T-connectors", eliminating the need for branch cables.Figure 1.8 depicts the physical topology of a typical bus network.Server S1Figure 1.8 Physical topology of a typical bus networkAll computers on this network structure can see all the data being transmitted on the cable, but only the computer where the data is actually destined actually gets that data. Several advantages of using a bus topology are that it is easy and cheap to install, because it does not require as many cables as other physical topology types. But it also has some disadvantages: it is difficult to troubleshoot, change, and remove, for example, and does not provide sufficient fault tolerance because all devices are connected on a single cable.LANs using bus topologies are now connected using Twisted-Pair Wiring, called lOBaseT Ethernet, and this usage continues today. 10Base2 and lOBaseT are also known as classic "CSMA/CE half-duplex Ethernet", which is described in detail in Chapter 3, "Ethernet Topologies".