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PROFESSIONAL-CLOUD-NETWORK-ENGINEER · Question #254

Your VPC is configured with regional dynamic routing mode. You have deployed VMs and VLAN attachments in the europe-west2 region, and regional internal Application Load Balancers in us- east1. You…

The correct answer is D. Create the backend service in us-east1, create the forwarding rule in us-east1, and then enable. Internal regional Application Load Balancers live entirely in the region where you create them, so both your backend service and your forwarding rule belong in us-east1. To let clients in europe- west2 reach that us-east1 load balancer, you then simply enable global access on…

Submitted by krish.m· Apr 18, 2026Configuring network services

Question

Your VPC is configured with regional dynamic routing mode. You have deployed VMs and VLAN attachments in the europe-west2 region, and regional internal Application Load Balancers in us- east1. You need to ensure the VMs in the europe-west2 region have connectivity to the regional internal Application Load Balancers in the us-east1 region. What should you do?

Options

  • ACreate the backend in us-east1, create multiple forwarding rules in each region, and then enable
  • BCreate the backend service in europe-west2, create the forwarding rule in us-east1, and then
  • CCreate the backend service in us-east1, create the forwarding rule in europe-west2, and then
  • DCreate the backend service in us-east1, create the forwarding rule in us-east1, and then enable

How the community answered

(29 responses)
  • A
    7% (2)
  • B
    21% (6)
  • C
    10% (3)
  • D
    62% (18)

Explanation

Internal regional Application Load Balancers live entirely in the region where you create them, so both your backend service and your forwarding rule belong in us-east1. To let clients in europe- west2 reach that us-east1 load balancer, you then simply enable global access on the internal forwarding rule. This preserves your regional deployment while transparently routing traffic over Google’s backbone.

Topics

#Internal Application Load Balancer#VPC Cross-Region Connectivity#Load Balancer Configuration#VPC Routing

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