Google Professional Cloud Network Engineer Exam Practice Questions, practice question pack
GOOGLE · Professional Cloud Network Engineer

Google Professional Cloud Network Engineer Exam Practice Questions

316 questionsPDF by emailUpdated September 2026

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Three of the 316 questions in this pack

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?

  1. 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.
  2. 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.
  3. 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.
  4. 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.
Show answer and explanation

Correct answer: 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.

firewall rule with target tag "application" and the source IP range of the allowed clients and Google health check IP ranges. Firewall rules with target tags are the standard GCP mechanism for restricting traffic to backend instances. You create a firewall rule targeting instances tagged 'application' and specify source IP ranges including both allowed client IPs and Google health check IP ranges (required for the load balancer to function). Options A and B involve VPC Service Controls, which are designed for API-level access control rather than network-level IP restrictions. Option D uses labels instead of tags; while labels exist, firewall rules use tags for target specification.

Why the other options are wrong

  • A. VPC Service Controls manages API access, not network-layer IP filtering for load- balanced applications.
  • B. VPC Service Controls restricts API access, not ingress traffic to load balancers based on source IP.
  • D. Firewall rules use tags, not labels, for target specification on instances.

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?

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

Correct answer: D. Create 1 VPC with 2 regional subnets. Deploy workloads in these subnets and have them communicate using private RFC1918 IP addresses.

workloads in these subnets and have them communicate using private RFC1918 IP addresses. Creating a single VPC with regional subnets in us-east1 and europe-west1 allows workloads to communicate directly using private RFC1918 IP addresses. This approach minimizes cost by avoiding external IP address charges and VPN overhead, and improves efficiency through Google's internal backbone. Option A and B unnecessarily create multiple VPCs or use external IPs, increasing complexity and cost. Option C uses a global load balancer, which is for load balancing, not for establishing inter-regional connectivity.

Why the other options are wrong

  • A. Multiple VPCs with VPN adds unnecessary complexity and cost when a single VPC can serve both regions.
  • B. Using external IP addresses exposes instances to the internet and incurs higher costs compared to private communication.
  • C. Global load balancers distribute traffic; they do not establish general-purpose connectivity between regions.

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?

  1. Create a Shared VPC Host Project and the respective Service Projects for each of the 3 separate departments.
  2. Create 3 separate VPCs, and use Cloud VPN to establish connectivity between the two appropriate VPCs.
  3. Create 3 separate VPCs, and use VPC peering to establish connectivity between the two appropriate VPCs.
  4. Create a single project, and deploy specific firewall rules. Use network tags to isolate access between the departments.
Show answer and explanation

Correct answer: C. Create 3 separate VPCs, and use VPC peering to establish connectivity between the two appropriate VPCs.

establish connectivity between the two appropriate VPCs. Separate VPC networks are the boundary for network administration in Google Cloud, so three VPCs give each department its own administrative domain. VPC Network Peering then connects only the two departments that need to communicate, while the third VPC stays isolated because peering is not transitive. Peering is fully managed with no tunnels, gateways, or routers to operate, so it is the lowest-overhead way to meet the requirement.

Why the other options are wrong

  • A. Shared VPC centralizes network administration in a single host project network, which is the opposite of creating separate administrative domains per department.
  • B. Cloud VPN would connect the two departments but adds tunnels, gateways, bandwidth limits, and cost that peering avoids.
  • D. Firewall rules and network tags inside one VPC only filter traffic, they do not create separate network administrative domains.

See all 10 free questions Get the full pack, US$39

316 practice questions for Google Cloud Professional Cloud Network Engineer, with full explanations.

Every question comes with the correct answer, the reasoning behind it, and a short note on why each wrong option is wrong. Work through it once with the answers, then again with the questions-only copy under exam conditions.

  • 316 questions mapped to the Professional Cloud Network Engineer exam objectives
  • Answers and explanations for every question, including the wrong options
  • A questions-only PDF for timed practice runs
  • Instant delivery by email the moment you check out
  • Free monthly updates for as long as the exam is live
  • Pass or your money back

A Professional Cloud Network Engineer attempt costs US$200. This pack is US$39, paid once.

Try 10 questions free before you buy.

Last updated September 2026 · 316 questions

What makes the Professional Cloud Network Engineer exam hard

The Professional Cloud Network Engineer is the specialist credential for anyone designing and running networks on Google Cloud. It sits at the intersection of networking and cloud infrastructure.

What decides it is Google Cloud networking end to end: VPC design and implementation, managed network services including Cloud Load Balancing and Cloud DNS, hybrid and multi-cloud interconnectivity with Cloud Interconnect and VPN, network security with Cloud Armor and firewall policies, and managing, monitoring and troubleshooting network operations at scale. The exam rewards deep, scenario-based networking knowledge.

The current exam guide carries a dedicated network security section, so this is no longer a pure routing-and-connectivity exam. It is 50 to 60 questions in two hours, and this pack will have 316 practice questions mapped to the Professional Cloud Network Engineer exam objectives.

About the exam

The Google Cloud Professional Cloud Network Engineer certification validates the ability to design, implement, and manage network architectures on Google Cloud. Google recommends three or more years of industry experience including one or more year on Google Cloud. It is valid for two years.

Exam sections

  • Design and plan a Google Cloud Virtual Private Cloud (VPC) network
  • Implement a VPC network
  • Configure managed network services
  • Configure and implement hybrid and multi-cloud network interconnectivity
  • Manage, monitor, and troubleshoot network operations
  • Configure, implement, and manage a cloud network security solution

Google does not publish percentage weightings for these sections. 50 to 60 questions, 2 hours, multiple choice and multiple select, US$200 per attempt, available in English and Japanese, online proctored or test centre, valid 2 years.

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Questions before you buy

What do I get when I buy the Google Professional Cloud Network Engineer pack?

316 practice questions as a PDF, each with the correct answer, a full explanation and a note on why the other options are wrong, plus a separate questions-only PDF for timed practice.

How quickly do I receive it?

Your PDF is prepared and sent to your email address after checkout, and you get a confirmation as soon as it is on its way.

Is there a free sample?

Yes. Ten questions from this pack, with answers and explanations, are free on this page and as a PDF, so you can judge the quality before you pay.

Are updates included?

Yes. The pack is updated every month for as long as the exam is live, and updates are free for everyone who has bought it.

What if I fail the exam?

We refund the pack. Sit the exam 7 to 30 days after buying, then send your official score report within 7 days of the exam date, as set out in the refund policy.

Can I share it with colleagues?

Each purchase is licensed to one person. For a team, school or training organisation, email support@certstash.com for a licence that fits.

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