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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 username and password. This gives a secure means of limiting the access from unwanted intruders on the network.
Explain how DHCP work?
In IPSec what is SAD, SPD and SA's?
what is the history behind n.s.t.i.s.s.c
Router#setup is the command to run 'setup'
system files
discuss the concept of redundancy in error detection and correction
Q. Illustrate Data-Link Layer in osi layers model? Data-Link Layer: This layer takes the data messages or frames from the Network Layer and gives for their actual transmissio
Control Commands: The STAT command is used as a way for the client to confirm that the server is still responding properly. The server must simply send a positive command res
what are the main problems of signal propagation?why do radio waves not always follow a straight line?why is reflection both useful and harmful?
Why it is necessary to have layering in a network? A computer network is a very complex system. It becomes very difficult to execute as a single entity. The layered approach di
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