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Difficulty: HardConfiguring Hybrid Connectivity and VPN Interconnects

A biomedical research institute is migrating its data pipeline to Google Cloud. The architecture requires transferring sensitive genomic datasets from an on-premises data center to a Google Cloud VPC with a sustained throughput requirement of 8 Gbps. Regulatory compliance dictates that all traffic in transit must be protected by IPsec encryption. Standard Dedicated Interconnect traffic alone does not meet the encryption mandate, while standard Cloud VPN over the public internet cannot reliably guarantee the required bandwidth. Which hybrid connectivity architecture should the lead Cloud Architect implement to satisfy both the bandwidth and encryption requirements?

  1. Provision a Dedicated Interconnect connection, configure private interconnect VLAN attachments, and deploy Cloud HA VPN gateways using Private IP addresses over the Dedicated Interconnect circuit.Answer
  2. B
    Deploy multiple standard Cloud VPN gateways over the public internet and configure VPC Network Peering to transitively route traffic across peer VPC networks to aggregate bandwidth.
  3. C
    Deploy a single HA VPN gateway over the public internet with four active tunnels, relying on Cloud Router to automatically scale IPsec encryption throughput to 10 Gbps per tunnel.
  4. D
    Establish a Dedicated Interconnect connection and configure VPC Service Controls perimeter bridges to natively enforce IPsec encryption across the physical Interconnect wire.

Answer

Provision a Dedicated Interconnect connection, configure private interconnect VLAN attachments, and deploy Cloud HA VPN gateways using Private IP addresses over the Dedicated Interconnect circuit.
The correct option correctly identifies HA VPN over Dedicated Interconnect (also known as HA VPN over Private IP). This architecture provisions high-bandwidth Dedicated Interconnect circuits and establishes Cloud HA VPN tunnels over the private interconnect VLAN attachments. This combination yields multi-gigabit throughput while guaranteeing full IPsec encryption in transit to satisfy strict compliance requirements.

Step-by-Step Solution

1
Analyze bandwidth and security constraints.
Identified sustained 8 Gbps throughput demand and mandatory IPsec encryption requirement.
Standard HA VPN over the internet is capped per tunnel (3 Gbps) and vulnerable to internet latency fluctuations, while Dedicated Interconnect alone is unencrypted by default.
2
Evaluate GCP hybrid networking capabilities for encrypted high-throughput connections.
Selected HA VPN over Private IP (HA VPN over Dedicated Interconnect).
HA VPN over Dedicated Interconnect allows deploying IPsec VPN tunnels over private 10 Gbps or 100 Gbps Dedicated Interconnect circuits, providing both high throughput and end-to-end IPsec encryption.
3
Verify architecture feasibility and compliance with Google Cloud best practices.
Confirmed HA VPN gateways attached via private VLAN attachments deliver scalable, encrypted, multi-gigabit transport.
Combining Dedicated Interconnect with HA VPN fulfills all compliance, performance, and SLA criteria.

Key Concept

HA VPN over Dedicated Interconnect (Private IP HA VPN)
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Topics

Configuring Hybrid Connectivity and VPN Interconnects

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