<span>The network topology describes the physical arrangement, installation, and connection of cables, computer, and other devices.
The network topology can be bus topology (a</span><span> network topology that uses a single cable or conductor to connect all nodes on the network.) ,</span>star topology (a network topology in which cables running from each node connect to a single point, such as a hub.), ring (a network topology that consists of a single cable that runs continuously from node to node), mesh, hybrid, hub topology,... according the arrangement of the nodes. 
        
                    
             
        
        
        
Rapid Application Development is the specific term
        
             
        
        
        
<span>when you use the radial gradient fill it gives it a look like a shine on them. </span>