A network engineer is attempting to design-in resiliency characteristics for an enterprise network’s VPN services.
If the engineer wants to help ensure some resilience against zero-day vulnerabilities exploited against the VPN implementation, which of the following decisions would BEST support this objective?
A . Implement a reverse proxy for VPN traffic that is defended and monitored by the organization’s SOC with near-real-time alerting to administrators.
B . Subscribe to a managed service provider capable of supporting the mitigation of advanced DDoS attacks on the enterprise’s pool of VPN concentrators.
C . Distribute the VPN concentrators across multiple systems at different physical sites to ensure some backup services are available in the event of primary site loss.
D . Employ a second VPN layer concurrently where the other layer’s cryptographic implementation is sourced from a different vendor.
Answer: D
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