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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.
Half duplex is analogous to a one a lane bridge, it can handle traffic in both directions but no at the similar time.
Network Layer The internet network layer is responsible for moving network layer packets known data grams from one host to another. The internet transport layer pro
Advantage of IP sec Tunnelling Mode IP Sec tunnelling mode has the following advantages: a.Security : Ts IP sec tunnelling mode secure somewhat but not the best. In a
If a data packet switch has a queue of data packets waiting when a new packet reach. The new packet will be located on the whole queue and will have to wait while the switch forwar
How Firewall configuration makes all the difference The greatest blunder that any company make is to just install a firewall and think that they have ensured perfect securit
100Base-TX Uses two category 5 UTP cable pairs or else two STP cable pairs to connect stations to a hub (star) One pair holds frames from station to hub one pair from
Network Topologies Topology is study of the arrangement or mapping of the elements links nodes etc, of a network especially the physical and logical inter connections bet
What is a Database Server? With a database server, the client passes SQL requests as messages to the database server. The results of every SQL command are returned over the net
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
SQL is a powerful set-oriented language which was developed by IBM research for the databases that adhere to the relational model. It having of a short list of powerful, yet highly
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