LAB-1
The network is around a hub named Hub0 which connects 4 PC's(PC0,PC1,PC2,PC3).
The hub is connected to a switch (2950-24 Switch), which is managing data flow for the devices connected to it.
The network is arranged in star topology where hub1 is a central node connecting 6PCs(PC4,PC5,PC6,PC7,PC8,PC9).
The green arrows show that the connection was successful.