N10-005 · Question #574
Which of the following is true about tunneling and encryption?
The correct answer is C. SSL VPN provides a secure tunnel. SSL VPN is the correct answer because it uses SSL/TLS to provide both an encrypted tunnel and strong authentication, making it genuinely secure.
Question
Which of the following is true about tunneling and encryption?
Options
- ASIP encrypts all data going through the tunnel.
- BPPTP creates a secure tunnel.
- CSSL VPN provides a secure tunnel.
- DRAS is a secure way to create a tunnel.
How the community answered
(51 responses)- A4% (2)
- B8% (4)
- C86% (44)
- D2% (1)
Why each option
SSL VPN is the correct answer because it uses SSL/TLS to provide both an encrypted tunnel and strong authentication, making it genuinely secure.
SIP (Session Initiation Protocol) is a signaling protocol used to initiate and manage VoIP and multimedia sessions - it does not itself encrypt tunnel data.
PPTP (Point-to-Point Tunneling Protocol) creates a VPN tunnel but relies on MPPE for encryption, which has known security flaws including weak key negotiation, and is widely considered insecure.
SSL VPN creates an encrypted tunnel using SSL/TLS protocols, providing mutual authentication and data confidentiality for remote access sessions. It operates over standard HTTPS port 443, making it firewall-friendly, and ensures all transmitted data is cryptographically protected from interception.
RAS (Remote Access Service) is a Windows platform feature that enables remote connectivity but does not by itself create an encrypted secure tunnel - security depends entirely on which protocol is configured on top of it.
Concept tested: SSL VPN tunneling and encryption security
Source: https://www.cisco.com/c/en/us/products/security/ssl-vpn/index.html
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