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Decentralized Network Case Study

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QUESTION 1

Peer-to-peer also known as decentralized network

A peer-to-peer network is quite small, simple and less expensive network structure that connects about 10 computers. All computers have both client and server functionality. This means all can send and receive at the same time. There is no central server on this type of a network. All computers on this network have the same capability to use the resources such as hardware, software and data files available on the network.
This network is insecure in such a way that any files from any computer can be accessible by unauthorized people. Administration is hard compared to client server where a server is a central computer to control all clients on the network.

On Bittorrent, peer-to-peer …show more content…
According to (Dean, 2013, pp.93-96) are:

• Throughput
This is a notable factor in choosing transmission method.
They are several causes of throughput limitation such as
- The laws of physics which means that the signals traverse fast than the speed of a light.
- Faulty and misconfiguration of devices delays the packet transmission.
- We have Fiber-Optic cables which allows faster transmission than wireless and copper connections but they are expensive.

• Cost
Cost is another significant element that is not easy to pinpoint. At some point, you are more than likely to upgrade both cabling and hardware due to compatibility issues. Sometimes the cable you are purchasing won’t work with the existing devises.
A better solution is to target a solution that will last at least ten years or a long term solution.

• Noise immunity
Transmission media will be and can be affected by noise coming from internal or external sources. It is ideal to choose media that have a smaller affects by noise such as fiber-optic as it does not use electric current.
- Network can be installed far from powerful electromagnetic forces.
- Anti-noise algorithm can be used for data …show more content…
A router can also be used as a network switch.

6) Gateway
A gateway is a device used to connect networks using different protocols.
This device operate at the network layer of the OSI model.
A mail gateway receives Simple Mail Transfer Protocol (SMTP) and translate into standard x.400 format and deliver them to its destination.

7) Repeater
Repeater operates in the physical layer of the OSI model and it doesn’t have capability of interpreting the data they retransmit.

8) Modem
According to (Dean, 2013, p.840) A modem is a device that modifies analog signal into digital signals at the transmitting end for transmission over a telephone lines, and changes digital signals onto analog signals at the receiving end.

9) Firewall
A firewall is a network security device used to filter or block traffic between networks.

10) Transceiver (Media converter)
Transceiver is a short name for transmitter-receiver, it is a device that both transmit and receives analog or digitals. Transceiver’s responsibilities are to place signal onto the network media and also detecting incoming signal traversing through the same

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