Various questions

Q1 ) Compare and contrast a data hub , a switch , and a router

A Data Hub : It is a simple network device which is used to connect multiple computers together . It is classified as layer 1 (physical layer ) device in the OSI model . It is used to broadcast any input to it so that all the receivers can receive it . A hub does not read any of the data passing through it and is not aware of the source or destination It receives incoming packets , amplifies the electric signal and broadcasts these to all

devices in the network

A Switch : It is also a network hardware device which is used to connect multiple computers together but within a local area network only . It operates at layer 2 (data link layer ) of OSI model . A switch is a device which is capable of reading data packets as they are received determining the source and destination of that packet and forwarding them appropriately . Thus it can be considered more intelligent than a data hub

A Router : A Router is a physical device which is used to connect multiple wired or wireless networks together . It operates at the layer 3 (network layer ) of the OSI model . It is a device which joins the home 's LAN to the WAN of the Internet . The routers are used to filter the traffic , either incoming or outgoing , based on the IP addresses of the sender and receiver . Routers serve as intermediate destination for network traffic . These routers receive packets , look inside each packet to identify the source and destination IP addresses and then forward these packets to its destination

A router is used for the purpose of internet connection while neither a hub nor a switch is capable of joining multiple networks or sharing an internet connection Q2 ) Compare and contrast the following network models : ASP client /server , peer-to-peer . Focus your analysis in the performance benefits and liabilities of each

In a local area network , basically we have two types of networks peer-to-peer and client /server

In a peer-to peer network , each computer is an equal participant on the network . The access to the network is not centrally controlled . The PCs are not reliant on one PC for resources . They can operate on basic PC operating system . They are generally simpler and lower in cost . But it is limited in extensibility . It is home based choice where the users are less . The security is not of more concern in peer-to-peer network

The client /server network has a central authority that controls the communication and access to the resources on the network . The centralized controlling PC is called the server . The server generally has a bigger processor and more storage than other PCs , or the clients on the network . The client /server network needs special operating system .They are generally more complex but they give the user more control . It can extend to handle organizational growth and allows user workstation to function as unburdened clients . It is configurable...