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PROFESSIONAL-CLOUD-NETWORK-ENGINEER · Question #166

Your company has a Virtual Private Cloud (VPC) with two Dedicated Interconnect connections in two different regions: us-west1 and us-east1. Each Dedicated Interconnect connection is attached to a…

The correct answer is D. Use global routing. Set the us-east1 Cloud Router to a base priority of 1000, and set the us-west1. Base priorities are whole numbers from 0 to 65535. Base priority for BGP sessions among CRs should be between 0-200 from region to region traffic. Only option D gives the safest priority gap, for our intended routing…

Submitted by amina.ke· Apr 18, 2026Configuring network services

Question

Your company has a Virtual Private Cloud (VPC) with two Dedicated Interconnect connections in two different regions: us-west1 and us-east1. Each Dedicated Interconnect connection is attached to a Cloud Router in its respective region by a VLAN attachment. You need to configure a high availability failover path. By default, all ingress traffic from the on-premises environment should flow to the VPC using the us-west1 connection. If us-west1 is unavailable, you want traffic to be rerouted to us-east1. How should you configure the multi-exit discriminator (MED) values to enable this failover path?

Options

  • AUse regional routing. Set the us-east1 Cloud Router to a base priority of 100, and set the us-
  • BUse global routing. Set the us-east1 Cloud Router to a base priority of 100, and set the us-west1
  • CUse regional routing. Set the us-east1 Cloud Router to a base priority of 1000, and set the us-
  • DUse global routing. Set the us-east1 Cloud Router to a base priority of 1000, and set the us-west1

How the community answered

(36 responses)
  • A
    3% (1)
  • B
    11% (4)
  • C
    3% (1)
  • D
    83% (30)

Explanation

Base priorities are whole numbers from 0 to 65535. Base priority for BGP sessions among CRs should be between 0-200 from region to region traffic. Only option D gives the safest priority gap, for our intended routing. https://cloud.google.com/network-connectivity/docs/router/concepts/overview#advertised- prefixes-and-priorities

Topics

#Dedicated Interconnect#Cloud Router#BGP MED#Global Routing

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