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IPSec is designed to provide security at the _________(a) transport layer(b) network layer(c) application layer(d) session layerThis question was addressed to me by my college director while I was bunking the class.My question is taken from Security In The Internet topic in section Networking of Computer Network

Answer»

The correct option is (b) network layer

Easy explanation: IPSEC is a set of protocols USED to provide AUTHENTICATION, DATA integrity and confidentiality between two machines in an IP network. In the TCP/IP model, it PROVIDES security at the IP layer i.e. the network layer.



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