Network topologies define the arrangement of nodes and connecting lines in a network. There are three main types: bus topology connects all devices to a single cable for one-directional data transmission; star topology connects all hosts to a central hub device through point-to-point connections; and ring topology connects each host to exactly two others in a circular structure, requiring data to travel through all intermediate hosts to reach its destination.

1. Network Topologies
1.What is Network Topology?
2.Types of Topologies:
i. Bus Topology
ii. Star Topology
iii. Ring Topology

2. What is Network Topology?
The arrangement of a network which
comprises of nodes and connecting lines
via sender and receiver is referred as
network topology.

3. Types of Topologies
• Bus Topology
• Star Topology
• Ring Topology

4. Bus Topology
• Bus topology is a network type in which every
computer and network device is connected to
single cable.
• It transmits the data from one end to another in
single direction.

5. Star Topology
• All hosts in Star topology are connected to a central
device, known as hub device, using a point-to-point
connection.
• There exists a point to point connection between
hosts and hub.

6. Ring Topology
• Each host machine connects to exactly two other
machines, creating a circular network structure.
• When one host tries to communicate or send message
to a host, the data travels through all intermediate
hosts.