Cisco
352-001 · Question #396
352-001 Question #396: Real Exam Question with Answer & Explanation
The correct answer is D: IPsec VPN. IPsec VPN is defined by open IETF standards (RFC 4301 and related RFCs), making it interoperable across equipment from different vendors, unlike Cisco-proprietary VPN solutions.
Question
Which VPN technology supports multivendor interoperability on a network design?
Options
- AVTI
- BDMVPN
- CEasy VPN
- DIPsec VPN
Explanation
IPsec VPN is defined by open IETF standards (RFC 4301 and related RFCs), making it interoperable across equipment from different vendors, unlike Cisco-proprietary VPN solutions.
Common mistakes.
- A. Virtual Tunnel Interface (VTI) is a Cisco IOS-specific construct for simplifying IPsec configuration and is not a standard supported natively by other vendors.
- B. Dynamic Multipoint VPN (DMVPN) is a Cisco-proprietary technology combining GRE, NHRP, and IPsec and requires Cisco devices at spoke and hub sites.
- C. Easy VPN (EzVPN) is a Cisco-proprietary remote-access VPN solution based on Cisco Unity protocol extensions and is not interoperable with non-Cisco devices.
Concept tested. Multivendor VPN interoperability with open standards
Reference. https://www.rfc-editor.org/rfc/rfc4301
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