2025 Realistic Professional-Cloud-Network-Engineer Dumps Questions To Gain Brilliant Result
Start your Professional-Cloud-Network-Engineer Exam Questions Preparation with Updated 213 Questions
NEW QUESTION # 16
You created a new VPC network named Dev with a single subnet. You added a firewall rule for the network Dev to allow HTTP traffic only and enabled logging. When you try to log in to an instance in the subnet via Remote Desktop Protocol, the login fails. You look for the Firewall rules logs in Stackdriver Logging, but you do not see any entries for blocked traffic. You want to see the logs for blocked traffic.
What should you do?
- A. Try connecting to the instance via SSH, and check the logs.
- B. Create a new firewall rule to allow traffic from port 22, and enable logs.
- C. Check the VPC flow logs for the instance.
- D. Create a new firewall rule with priority 65500 to deny all traffic, and enable logs.
Answer: D
Explanation:
Ingress packets in VPC Flow Logs are sampled after ingress firewall rules. If an ingress firewall rule denies inbound packets, those packets are not sampled by VPC Flow Logs. We want to see the logs for blocked traffic so we have to look for them in firewall logs. https://cloud.google.com/vpc/docs/flow-logs#key_properties
NEW QUESTION # 17
You need to create the network infrastructure to deploy a highly available web application in the us-east1 and us-west1 regions. The application runs on Compute Engine instances, and it does not require the use of a database. You want to follow Google-recommended practices. What should you do?
- A. Create one VPC with one subnet in each region.
Create a regional network load balancer in each region with a static IP address.
Enable Cloud CDN on the load balancers.
Create an A record in Cloud DNS with both IP addresses for the load balancers. - B. Create one VPC in each region, and peer both VPCs.
Create a global load balancer.
Enable Cloud CDN on the load balancer.
Create a CNAME for the load balancer in Cloud DNS. - C. Create one VPC with one subnet in each region.
Create a global load balancer with a static IP address.
Enable Cloud CDN and Google Cloud Armor on the load balancer.
Create an A record using the IP address of the load balancer in Cloud DNS. - D. Create one VPC with one subnet in each region.
Create an HTTP(S) load balancer with a static IP address.
Choose the standard tier for the network.
Enable Cloud CDN on the load balancer.
Answer: B
Explanation:
Create a CNAME record using the load balancer's IP address in Cloud DNS.
NEW QUESTION # 18
You need to enable Cloud CDN for all the objects inside a storage bucket. You want to ensure that all the object in the storage bucket can be served by the CDN.
What should you do in the GCP Console?
- A. Create a new HTTP load balancer, select the storage bucket as a backend, enable Cloud CDN on the backend, and make sure each object inside the storage bucket is shared publicly.
- B. Create a new SSL proxy load balancer, select the storage bucket as a backend, and then enable Cloud CDN on the backend.
- C. Create a new cloud storage bucket, and then enable Cloud CDN on it.
- D. Create a new TCP load balancer, select the storage bucket as a backend, and then enable Cloud CDN on the backend.
Answer: C
NEW QUESTION # 19
You are a network administrator at your company planning a migration to Google Cloud and you need to finish the migration as quickly as possible, To ease the transition, you decided to use the same architecture as your on-premises network' a hub-and-spoke model. Your on-premises architecture consists of over 50 spokes. Each spoke does not have connectivity to the other spokes, and all traffic IS sent through the hub for security reasons. You need to ensure that the Google Cloud architecture matches your on-premises architecture. You want to implement a solution that minimizes management overhead and cost, and uses default networking quotas and limits. What should you do?
- A. Connect all the spokes to the hub With Cloud VPN. Use a third-party network appliance as a default gateway to prevent connectivity between the spokes
- B. Connect all the spokes to the hub with Cloud VPN.
- C. Connect all the spokes to the hub with VPC Network Peering.
- D. Connect all the spokes to the hub with VPC Network Peering. Use a third-party network appliance as a default gateway to prevent connectivity between the spokes.
Answer: D
Explanation:
The correct answer is D because it meets the following requirements:
It matches the hub-and-spoke model of the on-premises network, where each spoke is a separate VPC network that is connected to a central hub VPC network.
It minimizes management overhead and cost, because VPC Network Peering is a simple and low-cost way to connect VPC networks without using any external IP addresses or VPN gateways1.
It uses default networking quotas and limits, because VPC Network Peering does not consume any quota or limit for VPN tunnels, external IP addresses, or forwarding rules2.
It prevents connectivity between the spokes, because VPC Network Peering is non-transitive by default, meaning that a spoke can only communicate with the hub, not with other spokes1. To enforce this restriction, a third-party network appliance can be used as a default gateway in each spoke VPC network, which can filter out any traffic destined for other spokes3.
Option A is incorrect because it does not minimize cost, as Cloud VPN charges for egress traffic and requires external IP addresses for the VPN gateways4. Option B is incorrect because it does not prevent connectivity between the spokes, as VPC Network Peering allows direct communication between peered VPC networks by default1. Option C is incorrect because it does not minimize cost or use default quotas and limits, for the same reasons as option A.
Reference:
VPC Network Peering overview | VPC
Quotas and limits | VPC
Hub-and-spoke network architecture | Cloud Architecture Center
Cloud VPN overview | Google Cloud
NEW QUESTION # 20
You decide to set up Cloud NAT. After completing the configuration, you find that one of your instances is not using the Cloud NAT for outbound NAT.
What is the most likely cause of this problem?
- A. An external IP address has been configured on the instance.
- B. You have created static routes that use RFC1918 ranges.
- C. The instance has been configured with multiple interfaces.
- D. The instance is accessible by a load balancer external IP address.
Answer: A
NEW QUESTION # 21
Your company's on-premises network is connected to a VPC using a Cloud VPN tunnel. You have a static route of 0.0.0.0/0 with the VPN tunnel as its next hop defined in the VPC. All internet bound traffic currently passes through the on-premises network. You configured Cloud NAT to translate the primary IP addresses of Compute Engine instances in one region. Traffic from those instances will now reach the internet directly from their VPC and not from the on-premises network. Traffic from the virtual machines (VMs) is not translating addresses as expected. What should you do?
- A. Add a default static route to the VPC with the default internet gateway as the next hop, the network tag associated with the Compute Engine instances, and a higher priority than the priority of the default route to the VPN tunnel.
- B. Add firewall rules that allow ingress and egress of the external NAT IP address, have a target tag that is on the Compute Engine instances, and have a priority value higher than the priority value of the default route to the VPN gateway.
- C. Increase the default min-ports-per-vm setting for the Cloud NAT gateway.
- D. Lower the TCP Established Connection Idle Timeout for the NAT gateway.
Answer: D
NEW QUESTION # 22
You want to implement an IPSec tunnel between your on-premises network and a VPC via Cloud VPN. You need to restrict reachability over the tunnel to specific local subnets, and you do not have a device capable of speaking Border Gateway Protocol (BGP).
Which routing option should you choose?
- A. Dynamic routing using Cloud Router
- B. Policy-based routing using the default local traffic selector
- C. Policy-based routing using a custom local traffic selector
- D. Route-based routing using default traffic selectors
Answer: A
Explanation:
Reference:
https://cloud.google.com/vpn/docs/concepts/overview
NEW QUESTION # 23
Your company offers a popular gaming service. Your instances are deployed with private IP addresses, and external access is granted through a global load balancer. You have recently engaged a traffic-scrubbing service and want to restrict your origin to allow connections only from the traffic-scrubbing service.
What should you do?
- A. Create a VPC Service Control Perimeter that blocks all traffic except for the traffic-scrubbing service.
- B. Create IPTables firewall rules that block all traffic except for the traffic-scrubbing service.
- C. Create a VPC Firewall rule that blocks all traffic except for the traffic-scrubbing service.
- D. Create a Cloud Armor Security Policy that blocks all traffic except for the traffic-scrubbing service.
Answer: D
Explanation:
Global load balancer will proxy the connection . thus no trace of session origin IP. you should use Cloud Armor to geofence your service.
https://cloud.google.com/load-balancing/docs/https
NEW QUESTION # 24
You want to establish a dedicated connection to Google that can access Cloud SQL via a public IP address and that does not require a third-party service provider.
Which connection type should you choose?
- A. Direct Peering
- B. Partner Interconnect
- C. Dedicated Interconnect
- D. Carrier Peering
Answer: A
Explanation:
Reference:
https://cloud.google.com/interconnect/docs/how-to/direct-peering
NEW QUESTION # 25
Your company has a security team that manages firewalls and SSL certificates. It also has a networking team that manages the networking resources. The networking team needs to be able to read firewall rules, but should not be able to create, modify, or delete them.
How should you set up permissions for the networking team?
- A. Assign members of the networking team the compute.networkAdmin role.
- B. Assign members of the networking team the compute.networkUser role.
- C. Assign members of the networking team a custom role with only the compute.networks.* and the compute.firewalls.list permissions.
- D. Assign members of the networking team the compute.networkViewer role, and add the compute.networks.use permission.
Answer: A
Explanation:
Explanation/Reference: https://cloud.google.com/compute/docs/access/iam
NEW QUESTION # 26
An application development team believes their current logging tool will not meet their needs for their new cloud-based product. They want a better tool to capture errors and help them analyze their historical log data. You want to help them find a solution that meets their needs, what should you do?
- A. Send them a list of online resources about logging best practices.
- B. Help them upgrade their current tool to take advantage of any new features.
- C. Help them define their requirements and assess viable logging tools.
- D. Direct them to download and install the Google StackDriver logging agent.
Answer: C
Explanation:
A and D can be ruled out for them are not general IT good practices. They need your help, not just simply to sell your products, or point them to the crowded resource without explains.
B (Correct Answer) - Help them define their requirements and assess viable logging tools. They know the requirements and the existing tools' problems. While it's true StackDriver Logging and Error Reporting meet all their requirements, they need you to provide expertise to make assessment for new tools, specifically, logging tools that can capture errors and help them analyze their historical log data?
C - Help them upgrade their current tool to take advantage of any new features. They have already used and know those tools' shortcomings. They need your help to find better one. Simply help them upgrade for new features is not enough and may not resolve the problems
NEW QUESTION # 27
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. 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.
- B. Use gcloud container clusters create [CLUSTER NAME] to create a VPC-native cluster.
- C. Use gcloud container clusters create [CLUSTER NAME]--enable-ip-alias to create a VPC-native cluster.
- D. 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.
Answer: D
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 # 28
Your organization recently re-architected your cloud environment to use Network Connectivity Center. However, an error occurred when you tried to add a new VPC named vpc-dev as a spoke. The error indicated that there was an issue with an existing spoke and the IP space of a VPC named vpc-pre-prod. You must complete the migration quickly and efficiently. What should you do?
- A. Exclude the conflicting IP range by using the --exclude-export-ranges flag in the hub when attaching the VPC spoke for vpc-dev.
- B. Delete the VMs associated with the conflicting subnets, then delete the conflicting subnets in vpc-dev. Recreate the subnets with a new IP range and redeploy the previously deleted VMs in the new subnets. Add the VPC spoke for vpc-dev.
- C. Exclude the conflicting IP range by using the --exclude-export-ranges flag when creating the VPC spoke for vpc-dev.
- D. Remove the conflicting VPC spoke for vpc-pre-prod from the set of VPC spokes in Network Connectivity Center. Add the VPC spoke for vpc-dev. Add the previously removed vpc-pre-prod as a VPC spoke.
Answer: D
Explanation:
The most efficient way to resolve the conflict is to temporarily remove the conflicting vpc-pre-prod spoke, add the vpc-dev spoke, and then re-add vpc-pre-prod. This ensures that the migration happens quickly without the need to change IP ranges or delete resources.
NEW QUESTION # 29
You create a Google Kubernetes Engine private cluster and want to use kubectl to get the status of the pods. In one of your instances you notice the master is not responding, even though the cluster is up and running.
What should you do to solve the problem?
- A. Assign a public IP address to the instance.
- B. Create a route to reach the Master, pointing to the default internet gateway.
- C. Create the appropriate firewall policy in the VPC to allow traffic from Master node IP address to the instance.
- D. Create the appropriate master authorized network entries to allow the instance to communicate to the master.
Answer: D
Explanation:
https://cloud.google.com/kubernetes-engine/docs/how-to/private-clusters#cant_reach_cluster
https://cloud.google.com/kubernetes-engine/docs/how-to/authorized-networks
NEW QUESTION # 30
You want to configure a NAT to perform address translation between your on-premises network blocks and GCP.
Which NAT solution should you use?
- A. Cloud NAT
- B. An instance with IP forwarding enabled
- C. An instance configured with iptables DNAT rules
- D. An instance configured with iptables SNAT rules
Answer: A
Explanation:
https://cloud.google.com/nat/docs/overview
NEW QUESTION # 31
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