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Professional Cloud Network Engineer Practice Exam (English)

Professional Cloud Network Engineer certification is available in English only.

I posted in English to give Japanese users a sense of what English exams are like.
Please see “Professional Cloud Security Engineer Practice Exam (Version 1.0) (Japanese)” for the Japanese translation.


Google Cloud Certified – Professional Cloud Network Engineer Practice Exam (50 Q)

Version 1.0


QUESTION 1

You need to restrict access to your Google Cloud load-balanced application so that only specific IP addresses can connect.
What should you do?

  • A. Create a secure perimeter using the Access Context Manager feature of VPC Service Controls and restrict access to the source IP range of the allowed clients and Google health check IP ranges.
  • B. Create a secure perimeter using VPC Service Controls, and mark the load balancer as a service restricted to the source IP range of the allowed clients and Google health check IP ranges.
  • C. Tag the backend instances “application,” and create a firewall rule with target tag “application” and the source IP range of the allowed clients and Google health check IP ranges.
  • D. Label the backend instances “application,” and create a firewall rule with the target label “application” and the source IP range of the allowed clients and Google health check IP ranges.

Correct Answer: C

Reference:
https://link.springer.com/chapter/10.1007/978-1-4842-1004-8_4


QUESTION 2

Your end users are located in close proximity to us-east1 and europe-west1. Their workloads need to communicate with each other. You want to minimize cost and increase network efficiency.
How should you design this topology?

  • A. Create 2 VPCs, each with their own regions and individual subnets. Create 2 VPN gateways to establish connectivity between these regions.
  • B. Create 2 VPCs, each with their own region and individual subnets. Use external IP addresses on the instances to establish connectivity between these regions.
  • C. Create 1 VPC with 2 regional subnets. Create a global load balancer to establish connectivity between the regions.
  • D. Create 1 VPC with 2 regional subnets. Deploy workloads in these subnets and have them communicate using private RFC1918 IP addresses.

Correct Answer: D

Explanation:
VPC Network Peering enables you to peer VPC networks so that workloads in different VPC networks can communicate in private RFC 1918 space. Traffic stays within Google’s network and doesn’t traverse the public internet.

Reference:
https://cloud.google.com/vpc/docs/vpc-peering


QUESTION 3

Your organization is deploying a single project for 3 separate departments. Two of these departments require network connectivity between each other, but the third department should remain in isolation. Your design should create separate network administrative domains between these departments. You want to minimize operational overhead.
How should you design the topology?

  • A. Create a Shared VPC Host Project and the respective Service Projects for each of the 3 separate departments.
  • B. Create 3 separate VPCs, and use Cloud VPN to establish connectivity between the two appropriate VPCs.
  • C. Create 3 separate VPCs, and use VPC peering to establish connectivity between the two appropriate VPCs.
  • D. Create a single project, and deploy specific firewall rules. Use network tags to isolate access between the departments.
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