Cis Data Communications Concepts Wans

A computer network set up around an individual person in one building. i.e. in a house or a small office

All stations are connected by cable or wireless to a central point, such as hub or a switch. If the central node is operating in a broadcast fashion such as a Hub, transmission of a frame from one station to the node is retransmitted on all of the outgoing links. In this case, although the arrangement is physically a star, it is logically a bus. In the case of the central node acting as switch, an incoming frame is processed in the node and then retransmitted on an outgoing link to the destination station. Ethernet protocols IEEE 802.3 are often used in the Star topology LAN.

The mesh topology provides multiple routes between devices. Not only does this provide alternates for file transmission should there be a failure anywhere along the network, but it makes it easy for additional devices to be connected and will not slow down network traffic. Since networks built using mesh topology can be large one of the main disadvantages is the difficulty involved with installation, configuration as well as the on-going maintenance involved. The expense of cabling is also a disadvantage of mesh topologies as they can take more cabling and more devices than other topologies. (Networking

In the transport topology, each advanced PC is joined with a primary link alluded to as the transport. Hence, as a result, each computerized PC is specifically associated with each distinctive advanced PC inside of the system.

Star – All computers and devices are connected to a centrally situated hub or switch. The hub or switch collects and distributes the flow of knowledge at intervals the network. It’s higher to use a switch than a hub as a result of a switch transmits the info to the supposed recipient instead of to all or any hosts on a network.

Fill in your name above, put your answer below each question, and then return this document for grading following the instructions in the syllabus. Please provide detailed answers to support all of the questions. Use examples from the readings, or from your own research, to support answers. The assignment must be 1-page in length with a minimum of 2 outside sources.

A network is the way to communicating throughout the internet; also, it is connected to the group of computers that allow to sharing the information through a network. Not only that network is just for sharing the information though connected of group computers, but for internet that including social media, game online, telecommunication, programming that would be require network for professional career, and more that can be any in the real world, even that can be also for security throughout network to protect whoever uses network for personal and business. A network is a-must

The main topologies are Bus (All Workstations are connected to one line), Star (All Workstations are connected to a central hub), Ring (All workstations are connected to fellow workstations left and right of them) and Mesh (All workstations are connected to each other). A lot of topologies are designed to allow more workstations to be added at a later date. But a lot of topologies also have weaknesses, such as the Bus topology and the Ring topology, which would both break down if a node was to fail.

Using a star topology has its share of positive and negative attributes. The star topology is the easiest topology to setup and to maintain. This alone means setup costs are significantly lower than other topologies. The star topology can also be the easiest to troubleshoot. When an issue occurs the problem can be traced back to the central connecting device, in this specific case a router. Any issue with a device connected to the central point does not affect the other connected devices. When a new device is connected to the network, it does not affect the staus of the network.

It is the most cost effective strategy for "cash-strapped" businesses with no special emphasis on security. Sometimes the cheapest design doesn't always translate into the easiest design. In this case, the translation is a success. The hub will serve as the intermediary between the computers and the internet (via cable modem). Also, in this case, easy design also translate into easy troubleshooting of any network problem. The star network allows troubleshooters to isolate issues on the network instead of taking the entire local network offline. Moreover, the star network implies direct data flow from the computers (via hub) to the internet instead of the data flowing through the nodes first. Hence, speed is a benefit of such a network. In addition, because of the direct data flow methodology (nodes-to-hub-to-modem-to-internet-and-vice-versa), the data is safe. Finally, the star network allows for expansion of nodes, hubs, and gateways without losing any of the networks advantages listed on this page. The owner plans to eventually add 7 more computers to the network. My recommendation is to purchase an additional hub to manage the 7 additional computers. Also, an additional modem is needed for load balancing purposes.

When the first computers were made, they couldn’t talk to each other if they weren’t the same type. But now with the standardising of components, it is now easier than ever for different computers to connect to each other in a LAN (Local Area Network).

Star topology will be used to implement this structure of a network. In a star topology, every computer is connected to the central switch that acts as the server. Any data set from the server contains a destination address and is sent only to a particular node. The requirements of this network are a switch, connecting wires, sockets, and the nodes/computers.

There are advantages and disadvantages to certain types of networks. The three that will be focused on are ring, star, and bus. Each of them has advantages and disadvantages. For a star topology, there is fault tolerance. If one connection goes down, computers can still connect with others. Also, this topology can scale. You can add computers to a network if the switch/hub allows it. However, scalability can create issues if not done correctly. If you just keep adding devices, you need to make sure the switch/hub can handle it and that they can communicate with the rest of the network. If you’re using a hub, the traffic can slow down the network, as each device will receive things like broadcasts.

There are two basic types of VSAT networks: Mesh topology networks and star topology networks. A mesh topology network is a point-to-point network consisting of multiple locations and antennas as described above. A star topology network is usually a larger network where multiple equipment sets (antennas and modems) are placed in various locations. These geographically dispersed equipment sets are also referred to as nodes. Each node transmits its signal through a satellite to a larger modem and antenna called a “hub”. A hub modem is a more complex unit compared to those of an individual node and the hub antenna is slightly larger with more power capability (usually 4-11 meters in diameter). In star topologies, each node communicates to the satellite and the satellite communicates to the hub. The hub acts as a

It is very easy to communicate through a network. People can communicate efficiently using a network with a group of people. They can enjoy the benefit of emails, instant texting, telephony, video conferencing, chat rooms.