Networking

 NETWORK TYPES

  Bus Topology What is Bus Topology ?   is multipoint.  One long cable acts as a backbone to link all the devices in a network . Nodes are connected to the bus cable by drop lines and taps. A drop line is a connection running between the device and the main cable. A tap is a connector that either splices into the main cable or punctures the sheathing of a cable to create a contact with the metallic core.  As a signal travels along the backbone, some of its energy is transformed into heat.  Therefore, it becomes weaker and weaker as it travels farther and farther.  For this reason there is a limit on the number of taps a bus can support and on the distance between those taps. What are Bus topology advantages and disadvantages? What are the advantages of a Bus network ( topology) ? Advantages of Bus topology : Advantages of a bus topology include ease of installation.  Backbone cable can be laid along the most efficient path, then connected to the n...

  What is the difference between star topology and mesh topology ?   In the star topology : star topology In a star topology, each device has a dedicated point-to-point link only to a central controller  usually called a hub. The devices are not directly linked to one another. Unlike a mesh topology. a star topology does not allow direct traffic between devices. The controller acts as an exchange:  If one device wants to send data to another, it sends the data to the controller, which then relays the data to the other connected device . A star topology is less expensive than a mesh topology.  In a star, each device needs only one link and one I/O port to connect it to any number of others. In a mesh topology : Mesh Topology  every device has a dedicated point-to-point link to every other device. The term dedicated means that the link carries traffic only between the two devices it connects.   😉thank you all my friends 

  Ring Topology What is Ring Topology ?  Ring Topology : In a ring topology, : each device has a dedicated point-to-point connection with only the two devices on either side of it.  How does a ring topology work? A signal is passed along the ring in one direction, from device to device, until it reaches its destination. Each device in the ring incorporates a repeater. When a device receives a signal intended for another device.  its repeater regenerates the bits and passes them along . What is Mesh Topology ?   What are the advantages and disadvantages of a mesh network ( topology) ? What are Ring topology advantages and disadvantages? What are the advantages of a Ring network ( topology) ? Why do we use ring topology? Advantages of Ring topology : A ring is relatively easy to install and reconfigure. Each device is linked to only its immediate neighbors (either physically or logically). To add or delete a device requires changing only two connections. fault iso...