Optical Fiber Optical fiber is a type of dielectric (insulating) material, such as glass or plastic, capable of transporting light.
Category: Data Communications
What is optical fiber? Briefly describe the structure of optical fiber. What are characteristics of optical fiber?
Optical Fiber Optical fiber is a type of dielectric (insulating) material, such as glass or plastic, capable of transporting light.
What is Asynchronous transmission? What are the advantages and disadvantages of asynchronous transmission?
Asynchronous transmission Asynchronous data transmission is one of the three methods of data transmission. In asynchronous data transmission, sender or
What are the different types of data transmission speed or bandwidth?
Data transmission speed is the rate of transferring data from source to destination. It is also referred as Bandwidth. Unit
Write short note on Bus topology with advantages and disadvantages
Unlike star or mesh topology, a bus topology is a multi-point connection between the nodes or devices on the network. A long cable works as backbone of the network. All the different nodes in the network connects at different points on the main cable. A connection point in the main cable for a node or device is the nearest point for the node.
Write short note on Star Topology with advantages and disadvantages
Star topology is one of the four basic topologies of network communication. In star topology, all network devices connects to a controller or hub. This controller or hub enables communication among the network devices. Devices does not connect directly to each other as in Mesh topology.
Write short note on Mesh Topology with advantages and disadvantages
Mesh topology is one of the four basic topologies of network communication. This is a point-to-point connection. That means, each devices in the network connects to each other device directly. Mesh topology offers speedy connection between devices due to dedicated communication channel.
What are the 2 types of connection in network systems?
A network system enables data communication between 2 or more devices. Communication links or channels connects these devices. This link or communication cannel can be of 2 types; point-to-point and multipoint connection. Both of these connections has their advantages and disadvantages and use cases.
What are the three types of transmission modes? Write short notes with advantages and disadvantages.
Based on the direction of data from sender to receiver, there can be 3 types of transmission modes which are simplex, half-duplex, duplex
What are the 3 Criteria necessary for an effective and efficient network
A network must meet a 3 criteria to become useable in real world situation which are Performance, Reliability and Security.
