Certify and Increase Opportunity. Show Network Devices
Some hybrid network devices:
Hardware or software components that typically sit on the connection point of different networks, e.g. between an internal network and an external network:
Other hardware for establishing networks or dial-up connections:
Networking Basics: Switches
Networking Basics: Routers
Routers A router is a communication device that is used to connect two logically and physically different networks, two LANs, two WANs and a LAN with WAN. The main function of the router is to sorting and the distribution of the data packets to their destinations based on their IP addresses. Routers provides the connectivity between the enterprise businesses, ISPs and in the internet infrastructure, router is a main device. Cisco routers are widely used in the world. Every router has routing software, which is known as IOS. Router operates at the network layer of the OSI model. Router does not broadcast the data packets. Switches Like the router, a switch is an intelligent device that maps the IP address with the MAC address of the LAN card. Unlike the hubs, a switch does not broadcast the data to all the computers, it sends the data packets only to the destined computer. Switches are used in the LAN, MAN and WAN. In an Ethernet network, computers are directly connected with the switch via twisted pair cables. In a network, switches use the three methods to transmit the data i.e. store and forward, cut through and fragment free. Hubs The central connecting device in a computer network is known as a hub. There are two types of a hub i.e. active hub and passive hub. Every computer is directly connected with the hub. When data packets arrives at hub, it broadcast them to all the LAN cards in a network and the destined recipient picks them and all other computers discard the data packets. Hub has five, eight, sixteen and more ports and one port is known as uplink port, which is used to connect with the next hub. Modems A modem is a communication device that is used to provide the connectivity with the internet. Modem works in two ways i.e. modulation and demodulation. It coverts the digital data into the analog and analog to digital LAN Cards LAN cards or network adapters are the building blocks of a computer network. No computer can communicate without a properly installed and configured LAN card. Every LAN card is provided with a unique IP address, subnet mask, gateway and DNS (if applicable). An UTP/STP cable connects a computer with the hub or switch. Both ends of the cable have the RJ-45 connectors one is inserted into the LAN card and one in the hub/switch. LAN cards are inserted into the expansion slots inside the computer. Different LAN cards support different speed from 10/100 to 10/1000.
Get industry recognized certification – Contact usWhich network device connect different networks together?Routers link two or more different networks; these can consist of various types of LAN network segments. A router receives packets and selects the optimal route to forward the packet across the network. Routers create a table of all addresses of the devices, and this is called a routing table.
How do I connect two networks with different protocols?When we use different Networks of different technologies we can connect them by using interface i.e. GATEWAYS. But if there are two systems on the same network and using different protocols, and we want to connect them we use interface BRIDGE. There the right answer is bridge.
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