Exam Professional Cloud Network Engineer topic 1 question 174 discussion

Actual exam question from Google's Professional Cloud Network Engineer

Question #: 174
Topic #: 1

[All Professional Cloud Network Engineer Questions]

Your company runs an enterprise platform on-premises using virtual machines (VMs). Your internet customers have created tens of thousands of DNS domains pointing to your public IP addresses allocated to the VMs. Typically, your customers hard-code your IP addresses in their DNS records. You are now planning to migrate the platform to Compute Engine and you want to use Bring Your Own IP. You want to minimize disruption to the platform. What should you do?

A. Create a VPC and request static external IP addresses from Google Cloud. Assign the IP addresses to the Compute Engine instances. Notify your customers of the new IP addresses so they can update their DNS records.
B. Verify ownership of your IP addresses. After the verification, Google Cloud advertises and provisions the IP prefix for you. Assign the IP addresses to the Compute Engine instances.
C. Create a VPC with the same IP address range as your on-premises network. Assign the IP addresses to the Compute Engine instances.
D. Verify ownership of your IP addresses. Use live migration to import the prefix. Assign the IP addresses to the Compute Engine instances.

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Suggested Answer: B 🗳️

by b0b25 at Feb. 22, 2025, 3:27 a.m.

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n2183712847

1 month ago

Selected Answer: D

Comparing options B and D: Both involve verifying ownership and bringing the IPs to Google Cloud (BYOIP). Option B describes the general BYOIP process. Option D specifically mentions "live migration to import the prefix," which is the recommended method within BYOIP specifically designed for minimizing disruption when traffic is actively flowing to those IPs. Since the goal is to minimize disruption, using the live migration feature of BYOIP is the most appropriate approach.

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