Free Access Google.Professional-Cloud-Network-Engineer.v2026-06-03.q145 Practice Test (Page 12)

Question 51

You are troubleshooting an application in your organization's Google Cloud network that is not functioning as expected. You suspect that packets are getting lost somewhere. The application sends packets intermittently at a low volume from a Compute Engine VM to a destination on your on-premises network through a pair of Cloud Interconnect VLAN attachments. You validated that the Cloud Next Generation Firewall (Cloud NGFW) rules do not have any deny statements blocking egress traffic, and you do not have any explicit allow rules. Following Google-recommended practices, you need to analyze the flow to see if packets are being sent correctly out of the VM to isolate the issue. What should you do?

A.Create a packet mirroring policy that is configured with your VM as the source and destined to a collector. Analyze the packet captures.

B.Enable VPC Flow Logs on the subnet that the VM is deployed in with sample_rate = 1.0, and run a query in Logs Explorer to analyze the packet flow.

C.Enable Firewall Rules Logging on your firewall rules and review the logs.

D.Verify the network/attachment/egress_dropped_packet.s_count Cloud Interconnect VLAN attachment metric.

Question 52

Your organization recently exposed a set of services through a global external Application Load Balancer.
After conducting some testing, you observed that responses would intermittently yield a non-HTTP 200 response. You need to identify the error. What should you do? (Choose 2 answers)

A.Delete the load balancer and backend services. Create a new passthrough Network Load Balancer.
Configure a failover group of VMs for the backend.

B.Access a VM in the VPC through SSH and try to access a backend VM directly. If the request is successful from the VM, increase the quantity of backends.

C.Enable and review the health check logs. Review the error responses in Cloud Logging.

D.Validate the health of the backend service. Enable logging for the backend service and identify the error response in Cloud Logging. Determine the cause of the error by reviewing the statusDetails log field.

E.Validate the health of the backend service. Enable logging on the load balancer and identify the error response in Cloud Logging. Determine the cause of the error by reviewing the statusDetails log field.

Question 53

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.

Question 54

You need to configure the Border Gateway Protocol (BGP) session for a VPN tunnel you just created between two Google Cloud VPCs, 10.1.0.0/16 and 172.16.0.0/16. You have a Cloud Router (router-1) in the 10.1.0.0/16 network and a second Cloud Router (router-2) in the 172.16.0.0/16 network. Which configuration should you use for the BGP session?

Question 55

You are configuring an Application Load Balancer. The backend resides in your on-premises data center and is connected by Dedicated Interconnect. You need to ensure the load balancer can reference these on-premises resources. You do not want the traffic to traverse the internet at all. What should you do?

A.Q Configure a Private Service Connect network endpoint group (NEG) as a backend service as part of the load balancer. Ensure firewalls are opened for the client source IPs.

B.Q Configure a zonal network endpoint group (NEG) as a backend service as part of the load balancer.
Ensure firewalls are opened for the client source IPs.

C.Q Configure an internet network endpoint group (NEG) as a backend service as part of the load balancer. Ensure firewalls are opened for the proxy-only subnet.

D.Q Configure a hybrid network endpoint group (NEG) as a backend service as part of the load balancer.Ensure firewalls are opened for the proxy-only subnet.

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Question 51

Question 52

Question 53

Question 54

Question 55

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