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Question

Difficulty: EasyDesigning Network Architecture and Hybrid Connectivity

An enterprise enterprise needs to securely connect its on-premises data center to Google Cloud. The requirement calls for a high-availability, encrypted connection over the public internet with a target bandwidth below 3 Gbps per tunnel. Which connectivity option best meets this requirement?

  1. HA VPN (High Availability Cloud VPN)Answer
  2. B
    Dedicated Interconnect
  3. C
    VPC Network Peering with remote transitive routing
  4. D
    Partner Interconnect

Answer

HA VPN (High Availability Cloud VPN) is the recommended solution for encrypted hybrid connectivity over the public internet supporting up to 3 Gbps per tunnel with SLA-backed 99.99% topology.
HA VPN delivers high availability (99.99% SLA) with IPsec encrypted tunnels over the public internet, perfectly matching the target bandwidth of under 3 Gbps per tunnel.

Step-by-Step Solution

1
Analyze hybrid connectivity medium and encryption requirements.
The requirement specifies an encrypted tunnel operating over the public internet.
Cloud VPN (specifically HA VPN) uses IPsec over the public internet, whereas Interconnect provides private physical/layer-2 connections.
2
Evaluate throughput constraints.
The required bandwidth is under 3 Gbps per tunnel.
HA VPN supports up to 3 Gbps per tunnel, making it cost-effective and technically appropriate for bandwidth requirements below this threshold.

Key Concept

Matching Google Cloud hybrid connectivity options (HA VPN vs. Dedicated/Partner Interconnect) based on encryption, transport medium, SLA, and throughput requirements.
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Topics

Designing Network Architecture and Hybrid Connectivity