Which VPN protocol is an extension of PPP and encapsulates information?

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Study for the EC-Council Certified Security Specialist (ECSS) Exam. Prepare with multiple choice questions, detailed explanations, and key insights to boost your confidence. Ace the exam now!

Multiple Choice

Which VPN protocol is an extension of PPP and encapsulates information?

Explanation:
PPTP is designed to extend PPP by carrying PPP frames inside a GRE tunnel, which allows a PPP-based session to be tunneled over an IP network as a VPN. This encapsulation of PPP data within GRE is what makes it the best fit for “an extension of PPP and encapsulates information.” SSH is not a VPN protocol, IPSec operates at the IP layer to secure packets rather than encapsulating PPP frames, and L2TP can transport PPP but is a general Layer 2 tunneling protocol rather than PPP’s direct extension.

PPTP is designed to extend PPP by carrying PPP frames inside a GRE tunnel, which allows a PPP-based session to be tunneled over an IP network as a VPN. This encapsulation of PPP data within GRE is what makes it the best fit for “an extension of PPP and encapsulates information.” SSH is not a VPN protocol, IPSec operates at the IP layer to secure packets rather than encapsulating PPP frames, and L2TP can transport PPP but is a general Layer 2 tunneling protocol rather than PPP’s direct extension.

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