WHAT ARE THE DIFFERENT NETWORK DEVICES?

I'm gonna discuss what is the definition of network device. WHAT IS THE NETWORK DEVICE? The network device is provide connectivity and functionality.The other hand refers to equipment that connects to a network.

So that's the different type of network device and the other devices not included. 1.HUB - Networking device which is used to connect multiple devices in a network. They are generally used to connect computers in a LAN. Least expensive and intelligence.Simple device that directs data all devices connected to it.

2.SWITCH - A device that operates at the Data Link layer, using packet switching to receive and forward data to the destination device it is smarter than hub and direct sending.

3.ROUTER -That forwards data packets between computer networks. It can transmit through wired and wireless networks.

4.NETWORK BRIDGE -That creates a single aggregate network from multiple communication networks. A bridge in a computer network connects with other bridge networks that utilize a similar protocol.

5.NETWORK INTERFACE CARD - A controller is a computer hardware component that connects a computer to a computer network. It can be used a hardware component without which a computer cannot be connected over a network.

6.MODEM -a short of modulator-demodulator is a hardware device that converts data from a digital format,converts the diigtal signals generated by a computer that can travel over conventional phone lines.

7.TRANSCEIVER -is a device that is able to both transmit and receive information through a transmission medium.For placing signals into network media and travelling through same wire.

Router,hubs and router device that tend to used interchangeably and they are integrated into single device. hub or switch that is concerned with transmitting frames, a router is to route packets to other networks until that packet ultimately reaches its destination.

WHAT ARE THE TYPE OF TOPOLOGY?

I will discuss the meaning of network topology,the 5 types of topologies,and the disadvantages and advantages of the types of topologies But first I’ll discuss the definition of network topology.

WHAT IS NETWORK TOPOLOGY? A network topology is connected with each other through communication cables called network wires. The arrangement of the elements of a communication network. The layout or structure of network relation with flow of data.So this is the types of network topologies.

1.LINEAR BUS TOPOLOGY -Where each device connects one after the other in a sequential chain. Used a long cable referred to as a backbone which computers and others device are attached. ADVANTAGES:COST EFFECTIVE,LESS CABLES REQUIRED,EASY INSTALLATION -because it’s cheaper than other network. And it requires less length cable.The most commonly applied in topology. DISADVANTAGES: when the backbone is damaged it shutdowns all the computers connect to it.

2.STAR TOPOLOGY -Use a central device called “hub”. Which all nodes are individually connected to a central connection point. Efficient device called switch with cables extending in all directions. Advantages:Lack of disruptions the network When connecting or removing devices,easy to install and wire.No disruptions to the network When connecting or removing devices. Disadvantages:if the hub fails the network resources will not be able to use.

3.RING TOPOLOGY - Where device connections create a circular data path. forming one contiguous pathway in a ring formation. used to as the topology for the backbone to connect the customers. In that case the ring is used in both directions to have two distinctive paths to the public switch.  ADVANTAGES: all data flows in one direction,no need the network server to control the between workstation. DISADVANTAGES: If a node fail possible the entire link gets disrupted. The entire network will be impacted if one workstation shuts down.

4.MESH TOPOLOGY -conceived for military applications.each computer and network device is interconnected with one another.Used in wireless network such as mobile phone and broadband wireless networks. ADVANTAGES:no data traffic issues,secure,central device can handle all the data an user request DISADVANTAGES: The connection to central hub breaks down,then all he network connected to it lost between the node and network.

5,HYBRID TOPOLOGY -combination of 2 or more different topologies.If there is a Mesh topology in one office department while a Ring topology in another department, connecting these two with bus topology will result in Hybrid topology.  ADVANTAGES:combines the benefits of different types of topologies in one topology.It is used for create large network because the two topology combine together. DISADVANTAGES:fault detection,maintenance is high thus expensive,There is change hardware in order to connect topology with another topology.