[Dec-2025 Newly Released] Professional-Cloud-Network-Engineer Dumps for Google Cloud Platform Certified
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Achieving the Google Professional-Cloud-Network-Engineer certification demonstrates a candidate's expertise and ability to design and implement network solutions on the Google Cloud Platform. Google Cloud Certified - Professional Cloud Network Engineer certification is recognized by employers and industry experts as a valuable credential that validates a candidate's skills and knowledge in networking technologies. Certified professionals are equipped with the tools and knowledge required to design, implement, and manage network solutions on the Google Cloud Platform, making them highly sought after by organizations looking to leverage the power of the cloud for their networking needs.
Google Professional-Cloud-Network-Engineer exam tests the candidate's knowledge of networking concepts, cloud networking, network security, and network optimization. Professional-Cloud-Network-Engineer exam is designed in a way to assess the candidate's skills in designing and implementing virtual private cloud systems, hybrid cloud networking, and network automation. Professional-Cloud-Network-Engineer exam also assesses the candidate's understanding of Google Cloud Platform's networking services, including Cloud Load Balancing, Cloud DNS, and Virtual Private Cloud (VPC).
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NEW QUESTION # 81
Your on-premises data center has 2 routers connected to your Google Cloud environment through a VPN on each router. All applications are working correctly; however, all of the traffic is passing across a single VPN instead of being load-balanced across the 2 connections as desired.
During troubleshooting you find:
* Each on-premises router is configured with a unique ASN.
* Each on-premises router is configured with the same routes and priorities.
* Both on-premises routers are configured with a VPN connected to a single Cloud Router.
* BGP sessions are established between both on-premises routers and the Cloud Router.
* Only 1 of the on-premises router's routes are being added to the routing table.
What is the most likely cause of this problem?
- A. The ASNs being used on the on-premises routers are different.
- B. The on-premises routers are configured with the same routes.
- C. You do not have a load balancer to load-balance the network traffic.
- D. A firewall is blocking the traffic across the second VPN connection.
Answer: C
NEW QUESTION # 82
You are the network administrator responsible for hybrid connectivity at your organization. Your developer team wants to use Cloud SQL in the us-west1 region in your Shared VPC. You configured a Dedicated Interconnect connection and a Cloud Router in us-west1, and the connectivity between your Shared VPC and on-premises data center is working as expected. You just created the private services access connection required for Cloud SQL using the reserved IP address range and default settings. However, your developers cannot access the Cloud SQL instance from on-premises. You want to resolve the issue. What should you do?
- A. Change the VPC routing mode to global.Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.
- B. Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.
Create a custom route advertisement in your Cloud Router to advertise the Cloud SQL IP address range. - C. Create an additional Cloud Router in us-west2.
Create a new Border Gateway Protocol (BGP) peering connection to your on-premises data center.
Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes. - D. Change the VPC routing mode to global.
Create a custom route advertisement in your Cloud Router to advertise the Cloud SQL IP address range.
Answer: B
NEW QUESTION # 83
Question:
Your multi-region VPC has had a long-standing HA VPN configured in "region 1" connected to your corporate network. You are planning to add two 10 Gbps Dedicated Interconnect connections and VLAN attachments in "region 2" to connect to the same corporate network. You need to plan for connectivity between your VPC and corporate network to ensure that traffic uses the Dedicated Interconnect connections as the primary path and the HA VPN as the secondary path. What should you do?
- A. Enable global dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in
"region 1" to use a base priority value of 20000. Configure BGP associated with the VLAN attachments to use a base priority of 100. Configure your on-premises routers to use similar multi-exit discriminator (MED) values. - B. Enable regional dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in
"region 1" to use a base priority value of 20000. Configure BGP associated with the VLAN attachments to use a base priority of 100. Configure your on-premises routers to use similar multi-exit discriminator (MED) values. - C. Enable global dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in
"region 1" to use a base priority value of 100. Configure BGP associated with the VLAN attachments to use a base priority of 20000. Configure your on-premises routers to use similar multi-exit discriminator (MED) values. - D. Enable regional dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in
"region 1" to use a base priority value of 100. Configure BGP associated with the VLAN attachments to use a base priority of 20000. Configure your on-premises routers to use similar multi-exit discriminator (MED) values.
Answer: C
Explanation:
For the Dedicated Interconnect to be the primary connection over the HA VPN, you should:
Enable global dynamic routing mode to allow the VPC to distribute routes dynamically across regions.
Set the BGP priority for the VLAN attachments associated with the Dedicated Interconnect to a lower base priority (e.g., 100) than the HA VPN's priority (e.g., 20000) to ensure it is preferred.
Setting up global dynamic routing with adjusted BGP priorities on both Interconnect and VPN will allow dynamic routing of traffic based on set preferences and path attributes, such as MED and priority levels. This setup ensures the Dedicated Interconnect, with a lower priority value, becomes the primary path for traffic, while the HA VPN, with a higher priority, serves as a backup.
Reference: Google Cloud - Cloud Interconnect
Reference: Google Cloud - HA VPN Overview
NEW QUESTION # 84
You manage two VPCs: VPC1 and VPC2, each with resources spread across two regions. You connected the VPCs with HA VPN in both regions to ensure redundancy. You've observed that when one VPN gateway fails, workloads that are located within the same region but different VPCs lose communication with each other. After further debugging, you notice that VMs in VPC2 receive traffic but their replies never get to the VMs in VPC1. You need to quickly fix the issue. What should you do?
- A. Q Enable global dynamic routing mode in VPC1.
- B. Q Enable global dynamic routing mode in VPC2.
- C. Q Enable regional dynamic routing mode in VPC1.
- D. Q Enable regional dynamic routing mode in VPC2.
Answer: B
Explanation:
The problem description indicates that VMs in VPC2 receive traffic but their replies don't reach VPC1, especially when a VPN gateway fails. This strongly suggests an asymmetric routing issue, where VPC2's routing table might not be aware of all necessary routes to send return traffic to VPC1, particularly in a multi- region setup with failover. By default, VPC networks are in regional dynamic routing mode, meaning they only learn routes from Cloud Routers in the same region. To ensure that routes learned from one region (where the active VPN tunnel might be) are available globally across the VPC, you need to enable global dynamic routing mode in the VPC that is experiencing the return traffic issue (VPC2 in this case). This allows VPC2 to learn and apply routes from Cloud Routers in all regions, ensuring that even if a VPN tunnel fails in one region, the routes learned from the active tunnel in another region are still available for return traffic.
Exact Extract:
"A VPC network's dynamic routing mode controls whether routes learned by Cloud Routers in one region are available to VMs in other regions. By default, VPC networks are in regional dynamic routing mode, which means Cloud Routers in a region only advertise routes to and learn routes from other Cloud Routers in the same region. This can lead to asymmetric routing issues in multi-region deployments."
"To ensure that routes learned from Cloud Routers are propagated to all regions within a VPC network, you must set the dynamic routing mode to global."Reference: Google Cloud VPC Documentation - Dynamic routing mode
NEW QUESTION # 85
Question:
Your organization wants to deploy HA VPN over Cloud Interconnect to ensure encryption in transit over the Cloud Interconnect connections. You have created a Cloud Router and two encrypted VLAN attachments that have a 5 Gbps capacity and a BGP configuration. The BGP sessions are operational. You need to complete the deployment of the HA VPN over Cloud Interconnect. What should you do?
- A. Enable MACsec for Cloud Interconnect on the VLAN attachments.
- B. Create an HA VPN gateway and associate the gateway with your two encrypted VLAN attachments.
Create a new dedicated HA VPN Cloud Router peer VPN gateway resources and HA VPN tunnels. - C. Enable MACsec on Partner Interconnect.
- D. Create an HA VPN gateway and associate the gateway with your two encrypted VLAN attachments.
Configure the HA VPN Cloud Router, peer VPN gateway resources, and HA VPN tunnels. Use the same Cloud Router used for the Cloud Interconnect tier.
Answer: D
Explanation:
For secure traffic over Cloud Interconnect, you configure an HA VPN gateway to work with existing VLAN attachments and use the same Cloud Router. This setup integrates seamlessly, leveraging the established BGP sessions for VPN tunnel configurations.
Reference: Google Cloud - HA VPN over Cloud Interconnect
NEW QUESTION # 86
You have recently been put in charge of managing identity and access management for your organization. You have several projects and want to use scripting and automation wherever possible. You want to grant the editor role to a project member.
Which two methods can you use to accomplish this? (Choose two.)
- A. GetIamPolicy() via REST API
- B. setIamPolicy() via REST API
- C. Enter an email address in the Add members field, and select the desired role from the drop-down menu in the GCP Console.
- D. gcloud projects add-iam-policy-binding Sprojectname --member user:Susername --role roles/editor
- E. gcloud pubsub add-iam-policy-binding Sprojectname --member user:Susername --role roles/editor
Answer: C,D
NEW QUESTION # 87
You are troubleshooting connectivity issues between Google Cloud and a public SaaS provider. Connectivity between the two environments is through the public internet. Your users are reporting intermittent connection errors when using TCP to connect; however, ICMP tests show no failures. According to users, errors occur around the same time every day. You want to troubleshoot and gather information by using Google Cloud tools that are most likely to provide insights into what is occurring within Google Cloud. What should you do?
- A. Enable and review Cloud Logging on your Cloud NAT gateway. Look for logs with errors matching the destination IP address of the public SaaS provider.
- B. Create a Connectivity Test by using TCP, the source IP address of your test VM, and the destination IP address of the public SaaS provider. Review the live data plane analysis and take the next steps based on the test results.
- C. Enable the Firewall Insights API. Set the deny rule insights observation period to one day. Review the insights to assure there are no firewall rules denying traffic.
- D. Enable and review Cloud Logging for Cloud Armor. Look for logs with errors matching the destination IP address of the public SaaS provider.
Answer: B
Explanation:
Creating a Connectivity Test using TCP in Network Intelligence Center allows you to simulate the connection to the public SaaS provider and receive real-time data plane analysis. This will help determine whether there are any issues with the network path for the specific TCP connection.
NEW QUESTION # 88
You are configuring a new instance of Cloud Router in your Organization's Google Cloud environment to allow connection across a new Dedicated Interconnect to your data center Sales, Marketing, and IT each have a service project attached to the Organization's host project.
Where should you create the Cloud Router instance?
- A. VPC network in the IT Project
- B. VPC network in all projects
- C. VPC network in the Host Project
- D. VPC network in the Sales, Marketing, and IT Projects
Answer: C
Explanation:
Reference: https://cloud.google.com/interconnect/docs/how-to/dedicated/using-interconnects-other-projects
NEW QUESTION # 89
You are disabling DNSSEC for one of your Cloud DNS-managed zones. You removed the DS records from your zone file, waited for them to expire from the cache, and disabled DNSSEC for the zone. You receive reports that DNSSEC validating resolves are unable to resolve names in your zone.
What should you do?
- A. Update the TTL for the zone.
- B. Disable DNSSEC at your domain registar.
- C. Transfer ownership of the domain to a new registar.
- D. Set the zone to the TRANSFER state.
Answer: B
Explanation:
Before disabling DNSSEC for a managed zone you want to use, you must deactivate DNSSEC at your domain registrar to ensure that DNSSEC-validating resolvers can still resolve names in the zone.
https://cloud.google.com/dns/docs/dnssec-config
NEW QUESTION # 90
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 single project, and deploy specific firewall rules. Use network tags to isolate access between the 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 Shared VPC Host Project and the respective Service Projects for each of the 3 separate departments.
Answer: D
Explanation:
Use Shared VPC to connect to a common VPC network. Resources in those projects can communicate with each other securely and efficiently across project boundaries using internal IPs. You can manage shared network resources, such as subnets, routes, and firewalls, from a central host project, enabling you to apply and enforce consistent network policies across the projects.
With Shared VPC and IAM controls, you can separate network administration from project administration. This separation helps you implement the principle of least privilege. For example, a centralized network team can administer the network without having any permissions into the participating projects. Similarly, the project admins can manage their project resources without any permissions to manipulate the shared network.
Reference: https://cloud.google.com/docs/enterprise/best-practices-for-enterprise-organizations
NEW QUESTION # 91
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 1 VPC with 2 regional subnets. Deploy workloads in these subnets and have them communicate using private RFC1918 IP addresses.
- B. Create 2 VPCs, each with their own regions and individual subnets. Create 2 VPN gateways 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 2 VPCs, each with their own region and individual subnets. Use external IP addresses on the instances to establish connectivity between these regions.
Answer: A
Explanation:
https://cloud.google.com/vpc/docs/using-vpc#create-auto-network
We create one VPC network in auto mode that creates one subnet in each Google Cloud region automatically.
So, region us-east1 and europe-west1 are in the same network and they can communicate using their internal IP address even though they are in different Regions. They take advantage of Google's global fiber network.
NEW QUESTION # 92
Question:
You reviewed the user behavior for your main application, which uses an external global Application Load Balancer, and found that the backend servers were overloaded due to erratic spikes in client requests. You need to limit concurrent sessions and return an HTTP 429 "Too Many Requests" response back to the client while following Google-recommended practices. What should you do?
- A. Configure the load balancer to accept only the defined amount of requests per client IP address, increase the backend servers to support more traffic, and redirect traffic to a different backend to burst traffic.
- B. Create a Cloud Armor security policy, and apply the predefined Open Worldwide Application Security Project (OWASP) rules to automatically implement the rate limit per client IP address.
- C. Create a Cloud Armor security policy, and associate the policy with the load balancer. Configure the security policy's settings as follows: action: throttle, conform-action: allow, exceed-action: deny-429.
- D. Configure a VM with Linux, implement the rate limit through iptables, and use a firewall rule to send an HTTP 429 response to the client application.
Answer: C
Explanation:
To control traffic spikes and enforce rate limits, configure Cloud Armor with throttle and deny-429 actions
. This allows you to set rate limits per client IP and ensures that excess traffic receives an HTTP 429 response, effectively controlling overload situations per Google best practices.
NEW QUESTION # 93
You need to define an address plan for a future new GKE cluster in your VPC. This will be a VPC native cluster, and the default Pod IP range allocation will be used. You must pre-provision all the needed VPC subnets and their respective IP address ranges before cluster creation. The cluster will initially have a single node, but it will be scaled to a maximum of three nodes if necessary. You want to allocate the minimum number of Pod IP addresses.
Which subnet mask should you use for the Pod IP address range?
- A. /23
- B. /22
- C. /21
- D. /25
Answer: D
Explanation:
Reference:
https://cloud.google.com/kubernetes-engine/docs/how-to/alias-ips
NEW QUESTION # 94
You are designing a Google Kubernetes Engine (GKE) cluster for your organization. The current cluster size is expected to host 10 nodes, with 20 Pods per node and 150 services. Because of the migration of new services over the next 2 years, there is a planned growth for 100 nodes, 200 Pods per node, and 1500 services.
You want to use VPC-native clusters with alias IP ranges, while minimizing address consumption.
How should you design this topology?
- A. Use gcloud container clusters create [CLUSTER NAME]--enable-ip-alias to create a VPC-native cluster.
- B. Create a subnet of size/25 with 2 secondary ranges of: /17 for Pods and /21 for Services. Create a VPC- native cluster and specify those ranges.
- C. Use gcloud container clusters create [CLUSTER NAME] to create a VPC-native cluster.
- D. Create a subnet of size/28 with 2 secondary ranges of: /24 for Pods and /24 for Services. Create a VPC- native cluster and specify those ranges. When the services are ready to be deployed, resize the subnets.
Answer: B
Explanation:
The service range setting is permanent and cannot be changed. Please see https://stackoverflow.com/questions
/60957040/how-to-increase-the-service-address-range-of-a-gke-cluster I think the correc tanswer is A since:
Grow is expected to up to 100 nodes (that would be /25), then up to 200 pods per node (100 times 200 =
20000 so /17 is 32768), then 1500 services in a /21 (up to 2048)
https://docs.netgate.com/pfsense/en/latest/book/network/understanding-cidr-subnet-mask-notation.html
NEW QUESTION # 95
Your frontend application VMs and your backend database VMs are all deployed in the same VPC but across different subnets. Global network firewall policy rules are configured to allow traffic from the frontend VMs to the backend VMs. Based on a recent compliance requirement, this traffic must now be inspected by network virtual appliances (NVAs) firewalls that are deployed in the same VPC. The NVAs are configured to be full network proxies and will source NAT-allowed traffic. You need to configure VPC routing to allow the NVAs to inspect the traffic between subnets. What should you do?
- A. Place your NVAs behind an internal passthrough Network Load Balancer named ilb1. Add global network firewall policy rules to allow traffic through your NVAs. Create a custom static route with the destination IP range of the backend VM subnet, frontend instance tag, and the next hop of ilb1. Add a frontend network tag to your frontend VMs.
- B. Place your NVAs behind an internal passthrough Network Load Balancer named ilb1. Add global network firewall policy rules to allow traffic through your NVAs. Create a policy-based route (PBR) with the source IP range of the frontend VM subnet, destination IP range of the backend VM subnet, and the next hop of ilb1. Scope the PBR to the VMs with the frontend network tag. Add a frontend network tag to your frontend servers.
- C. Create your NVA with multiple interfaces. Configure NIC0 for NVA in the backend subnet. Configure NIC1 for NVA in the frontend subnet. Place your NVAs behind an internal passthrough Network Load Balancer named ilb1. Add global network firewall policy rules to allow traffic through your NVAs.
Create a custom static route with the destination IP range of the backend VM subnet, frontend instance tag, and the next hop of ilb1. Add a frontend network tag to your frontend VMs. - D. Place your NVAs behind an internal passthrough Network Load Balancer named ilb1. Add the global network firewall policy rules to allow traffic through your NVAs. Create a policy-based route (PBR) with the source IP range of the backend VM subnet, destination IP range of the frontend VM subnet, and the next hop of ilb1. Scope the PBR to the VMs with the backend network tag. Add a backend network tag to your backend servers.
Answer: B
Explanation:
Explanation: The correct solution requires creating a policy-based route (PBR) to force the traffic from the frontend subnet to the backend subnet through the NVA. The PBR should be scoped to the frontend VMs, with the next hop being the passthrough load balancer (ilb1) behind which the NVAs reside. This ensures that all traffic is inspected by the NVA before reaching the backend.
NEW QUESTION # 96
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