hello friends this is Vasu Birla ,, and today we will discuss about third method of classification of Networks . 3. Network Topologies What is Topology ? Topology mean How devices connected to each other and how they transmit data in network .. .. Ther are Two kind of ToPoloty .. i. Physical Topology. It means actual layout of the computer , cables and other devices ,,, simply how devices are looking physically,. that is Physical Toplology. ( Jo Actual dikh raha he human eyes se wo physical topology he). Note:- It does not sence how they look physical ,,but it matters that how they work logically ,, so logical topology is important ii. Logical Topology. It Means How devices data transfer the data in the network ,,or how they work ,, For example Hub ,, Hub is centralize device ,,they are looking like a Star Topology (jab use apni aakho se dekhoge to star topology d...