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The purpose of internetworking is universal service across heterogeneous networks. To give this service all computers, and routers have to agree to forward information from a source on one network to a specified receiver. The task is complicated as frame formats and addressing procedures may differ. The key of achieving universal service is universal protocol software (TCP/IP).
A virtual network is given in the figure that TCP/IP software gives to users and applications.
UDP sends packets 'blind' down the network, and relies on upper-layer protocols to form connections and identify errors. TCP is a connection-oriented protocol that can give reliabl
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Determine about unique least-cost path If there is a unique least-cost path, the two algorithms will yield the similar result because they are both guaranteed to search the lea
Link Layer To move to packet from one node( host or packet swtich0 to net node in the route the network layer relies on the services of the link layer. Particularl
what is parity checking
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Illustrate the term- Search Engine and Surfing Search Engine: Software used to find information on the Web. Examples are Google, Lycos and Yahoo. Server: A computer with
PPTP use for encryption and authentication
Explain the importance of authentication. Authentication is the method of verifying a user's credentials before he can log into the network. It is normally performed using a us
Database servers connected as a cluster to the main server There could be three database servers connected as a cluster to the main server to provide better connectivity and se
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