Explain the importance of authentication, Computer Networking

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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.

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advance routing, i need help with this assigmnet reply asap pleas

i need help with this assigmnet reply asap please

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