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PROFESSIONAL-CLOUD-NETWORK-ENGINEER · Question #187

Your company is moving to a hybrid cloud environment and needs to connect two on-premises data centers to Google Cloud. Your company has opted for no service level agreement (SLA) on the Dedicated…

The correct answer is D. Build two VLAN attachments from each Dedicated Interconnect: one connecting to the Cloud. Two VLAN Attachments Per Dedicated Interconnect: By creating two VLAN attachments per Dedicated Interconnect, each attachment connects to a Cloud Router in different regions (us- east1 and us-west1). This setup ensures that traffic can failover between regions if there is an…

Submitted by devops_kid· Apr 18, 2026Designing, planning, and prototyping a Google Cloud network

Question

Your company is moving to a hybrid cloud environment and needs to connect two on-premises data centers to Google Cloud. Your company has opted for no service level agreement (SLA) on the Dedicated Interconnect ports. You set up a single Dedicated Interconnect to connect each on- premises data center to Google Cloud: one Dedicated Interconnect in us-east1 and another Dedicated Interconnect in us-west1. You also configured a Cloud Router for each Dedicated Interconnect in each respective region. You now need to configure the Interconnect attachments to provide as much high availability diversity as possible based on this design. What should you do?

Options

  • ABuild one VLAN attachment from each Dedicated Interconnect corresponding to the Cloud Router
  • BBuild one VLAN attachment from each Dedicated Interconnect corresponding to the Cloud Router
  • CBuild two VLAN attachments from each Dedicated Interconnect: one connecting to the Cloud
  • DBuild two VLAN attachments from each Dedicated Interconnect: one connecting to the Cloud

How the community answered

(61 responses)
  • A
    3% (2)
  • B
    7% (4)
  • C
    11% (7)
  • D
    79% (48)

Explanation

Two VLAN Attachments Per Dedicated Interconnect: By creating two VLAN attachments per Dedicated Interconnect, each attachment connects to a Cloud Router in different regions (us- east1 and us-west1). This setup ensures that traffic can failover between regions if there is an issue in one region. Global Routing: Enabling global routing at the VPC level allows the routing information from both regions (us-east1 and us-west1) to propagate globally across the VPC network. This provides the necessary redundancy and ensures high availability for the hybrid cloud environment.

Topics

#Dedicated Interconnect#VLAN Attachments#High Availability#Hybrid Cloud Connectivity

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