Developed by Cisco and Microsoft to support VPNs over PPP and TCP/IP. PPTP is highly vulnerable to password cracking attacks and considered obsolete.

Developed by Cisco and Microsoft to support VPNs over PPP and TCP/IP. PPTP is highly vulnerable to password cracking attacks and considered obsolete.

• A. Point-to-Point Tunneling Protocol (PPTP)
• B. transport layer security (TLS) VPN
• C. Internet Protocol Security (IPsec)
• D. Web Application Firewall (WAF)

Answer: (A)

This item is about a VPN protocol known for its method of tunneling and its weak security. The described protocol was designed to carry VPN traffic over PPP and TCP/IP, using PPP for link setup and MPPE for encryption, but it has well-documented weaknesses in authentication and encryption. Those weaknesses make it highly vulnerable to password guessing and other offline attacks, which is why it is considered obsolete today. That combination of foundational tunneling over PPP and TCP/IP with weak encryption and authentication is the hallmark of this protocol. In modern practice, more secure options like TLS-based VPNs or IPsec are preferred, while a Web Application Firewall serves a different purpose unrelated to VPN tunneling. So the protocol described is PPTP.

This item is about a VPN protocol known for its method of tunneling and its weak security. The described protocol was designed to carry VPN traffic over PPP and TCP/IP, using PPP for link setup and MPPE for encryption, but it has well-documented weaknesses in authentication and encryption. Those weaknesses make it highly vulnerable to password guessing and other offline attacks, which is why it is considered obsolete today. That combination of foundational tunneling over PPP and TCP/IP with weak encryption and authentication is the hallmark of this protocol. In modern practice, more secure options like TLS-based VPNs or IPsec are preferred, while a Web Application Firewall serves a different purpose unrelated to VPN tunneling. So the protocol described is PPTP.