Discuss only five types of network topologies with the aid of diagrams, and list theiradvantages and disadvantages?

Sure, here are five types of network topologies, their diagrams, advantages, and disadvantages:

1. Bus Topology: In a bus topology, all devices are connected to a central cable, called the bus or backbone.

   Diagram:

   Advantages: Easy to connect a computer or peripheral to a linear bus, requires less cable length than a star topology.

   Disadvantages: Entire network shuts down if there is a break in the main cable, terminators are required at both ends of the backbone cable.

2. Ring Topology: In a ring topology, each device has a dedicated point-to-point connection only with the two devices on either side of it. A signal is passed along the ring in one direction, from device to device, until it reaches its destination.

   Diagram:

   Advantages: All data flows in one direction, reducing the chance of packet collisions.

   Disadvantages: A failure in any cable or device breaks the loop and can take down the entire network.

3. Star Topology: In a star topology, each device has a dedicated point-to-point link only to a central controller, usually called a hub.

   Diagram:

   Advantages: Easy to install and wire, easy to detect faults and to remove parts.

   Disadvantages: Requires more cable length than a linear topology, if the hub fails, nodes attached are disabled.

4. Tree Topology: This is a "hybrid" topology that combines characteristics of linear bus and star topologies. It consists of groups of star-configured workstations connected to a linear bus backbone cable.

   Diagram:

   Advantages: Expansion of an existing network is possible, and it's supported by several hardware and software vendors.

   Disadvantages: If the backbone line breaks, the entire segment goes down, more difficult to configure and wire than other topologies.

5. Mesh Topology: In a mesh topology, every device has a dedicated point-to-point link to every other device.

   Diagram:

   Advantages: Provides high reliability due to multiple paths between devices, easy fault identification and isolation.

   Disadvantages: Requires more cabling, which can be expensive, complex implementation.

Please note that the diagrams are not embedded in the text but are linked to external sources.