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Which of the following is one of the main components of PPP that deals with establishing, configuring and testing the layer 2 connection?
HTTP
LCP
NAP
POP
LCP or Link Control Protocol establishes, configures, and tests data-link layer connections by sending LCP packets to and from each endpoint. LCP packets are further divided into three classes, the Link Configuration, Link Termination and Link Maintenance. (Source: http://www.cisco.com/c/en/us/tech/wan/point-to-point-protocol-ppp/index.html)
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