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TUTORIAL 5
1. List and describe three (3) major LAN topologies?
Topologies can define as the layout of a network. There are really three basic types of topologies. They are Star, Bus, and Ring. In a star topology, all computers and devices are connected to a centrally located hub or switch. The hub or switch collects and distributes the flow of data within the network. It’s better to use a switch than a hub because a switch transmits the data to the intended recipient rather than to all hosts on a network. In a bus topology, all computers and devices are connected in series to a single linear cable called a trunk or sometimes called a backbone. Both ends of the trunk must be terminated to stop the signal from bouncing back up the cable. Because the bus topology does not have a central point it is difficult to troubleshoot problems. Also, a break at any point along the bus can cause the entire network to go down. In a ring topology, all computers and devices are connected to cable that forms a closed loop. Each computer on this type of topology acts like a repeater and boosts the signal before sending it to the next computer. It transmits data by passing a “token” around the network. Hence this type of network is commonly called a Token ring network. Similar to the Bus topology, if one computer fails, the entire network goes down.
2. Define the internet, describe how it works and explain how it provides business value? The internet has become the world’s most extensive, public communication system that now rivals the global telephone system in reach and range. It’s also the world’s largest implementation of client/ server computing and internet-working, linking millions of individual networks all over the world. It works by subscribing to an internet service provider. An Internet Service Provider (ISP) is a commercial organization with a permanent connection to the internet that sells temporary connection to retail
1. List and describe three (3) major LAN topologies?
Topologies can define as the layout of a network. There are really three basic types of topologies. They are Star, Bus, and Ring. In a star topology, all computers and devices are connected to a centrally located hub or switch. The hub or switch collects and distributes the flow of data within the network. It’s better to use a switch than a hub because a switch transmits the data to the intended recipient rather than to all hosts on a network. In a bus topology, all computers and devices are connected in series to a single linear cable called a trunk or sometimes called a backbone. Both ends of the trunk must be terminated to stop the signal from bouncing back up the cable. Because the bus topology does not have a central point it is difficult to troubleshoot problems. Also, a break at any point along the bus can cause the entire network to go down. In a ring topology, all computers and devices are connected to cable that forms a closed loop. Each computer on this type of topology acts like a repeater and boosts the signal before sending it to the next computer. It transmits data by passing a “token” around the network. Hence this type of network is commonly called a Token ring network. Similar to the Bus topology, if one computer fails, the entire network goes down.
2. Define the internet, describe how it works and explain how it provides business value? The internet has become the world’s most extensive, public communication system that now rivals the global telephone system in reach and range. It’s also the world’s largest implementation of client/ server computing and internet-working, linking millions of individual networks all over the world. It works by subscribing to an internet service provider. An Internet Service Provider (ISP) is a commercial organization with a permanent connection to the internet that sells temporary connection to retail