Page 45 - Handout Computer Network.

Figure 2-22 shown a Star Topology of Network Devices

When a star network is expanded to include an additional networking device that is connected
to the main networking device, it is called an extended-star topology, as shown in Figure 2-23.

Figure 2-23 shown an Extended- Star Topology of Network Devices

2.10.1.3 Ring Topology

The logical ring topology is another important topology in LAN connectivity. As the name
implies, hosts are connected in the form of a ring or circle. Unlike the physical bus topology, the ring
topology has no beginning or end that needs to be terminated. Data is transmitted in a way unlike the
logical bus topology. A frame travels around the ring, stopping at each node. If a node wants to
transmit data, it is permitted to add that data as well as the destination address to the frame. The

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