Difficulty: Easy
Correct Answer: Point to Point Tunneling Protocol
Explanation:
Introduction / Context:
PPTP is a historical Virtual Private Network (VPN) protocol that encapsulates PPP traffic and was popular for dial-up and early broadband tunneling scenarios. Recognizing the correct expansion helps you distinguish it from similar-sounding networking terms.
Given Data / Assumptions:
Concept / Approach:
PPTP stands for Point to Point Tunneling Protocol. It creates encrypted (or partially encrypted) tunnels for PPP frames over IP networks. Although largely superseded by more secure options (such as L2TP/IPsec, OpenVPN, or WireGuard), it remains a common term in networking curricula and legacy setups.
Step-by-Step Solution:
Verification / Alternative check:
Textbooks, RFC references, and operating system VPN configuration dialogs historically cite “Point-to-Point Tunneling Protocol.”
Why Other Options Are Wrong:
Common Pitfalls:
Assuming PPTP is still recommended for strong security; modern best practice prefers newer protocols due to PPTP’s cryptographic weaknesses.
Final Answer:
Point to Point Tunneling Protocol
Discussion & Comments