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Google Professional-Cloud-Network-Engineer Certification Exam is designed to test the skills and knowledge of professionals who are responsible for designing, implementing, and managing networks on the Google Cloud Platform. Google Cloud Certified - Professional Cloud Network Engineer certification exam is a part of the Google Cloud Certified program, which aims to provide candidates with the skills and knowledge required to become effective cloud professionals.

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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).

Google Cloud Certified - Professional Cloud Network Engineer Sample Questions (Q267-Q272):

NEW QUESTION # 267
Your company has defined a resource hierarchy that includes a parent folder with subfolders for each department. Each department defines their respective project and VPC in the assigned folder and has the appropriate permissions to create Google Cloud firewall rules. The VPCs should not allow traffic to flow between them. You need to block all traffic from any source, including other VPCs, and delegate only the intra-VPC firewall rules to the respective departments. What should you do?

A. Create two hierarchical firewall policies per department's folder with two rules in each: a high- priority rule that matches traffic from the private CIDRs assigned to the respective VPC and sets the action to allow, and another lower-priority rule that blocks traffic from any other source.
B. Create two hierarchical firewall policies per department's folder with two rules in each: a high- priority rule that matches traffic from the private CIDRs assigned to the respective VPC and sets the action to goto_next, and another lower-priority rule that blocks traffic from any other source.
C. Create a VPC firewall rule in each VPC to block traffic from any source, with priority 1000.
D. Create a VPC firewall rule in each VPC to block traffic from any source, with priority 0.

Answer: B

Explanation:
Hierarchical firewall policies let you create and enforce a consistent firewall policy across your organization. You can assign hierarchical firewall policies to the organization as a whole or to individual folders. These policies contain rules that can explicitly deny or allow connections, as do Virtual Private Cloud (VPC) firewall rules. In addition, hierarchical firewall policy rules can delegate evaluation to lower-level policies or VPC network firewall rules with a goto_next action.

NEW QUESTION # 268
You have the following routing design. You discover that Compute Engine instances in Subnet-2 in the asia- southeast1 region cannot communicate with compute resources on-premises. What should you do?

A. Change the VPC dynamic routing mode to Global.
B. Enable IP forwarding in the asia-southeast1 region.
C. Configure a custom route advertisement on the Cloud Router.
D. Add a second Border Gateway Protocol (BGP) session to the Cloud Router.

Answer: A

NEW QUESTION # 269
Recently, your networking team enabled Cloud CDN for one of the external-facing services that is exposed through an external Application Load Balancer. The application team has already defined which content should be cached within the responses. Upon testing the load balancer, you did not observe any change in performance after the Cloud CDN enablement. You need to resolve the issue. What should you do?

A. Configure the FORCE_CACHE_ALL caching mode on Cloud CDN to ensure all appropriate content is cached.
B. Configure the CACHE_ALL_STATIC caching mode on Cloud CDN to ensure Cloud CDN caches all static content as well as content defined by the backends.
C. Configure the USE_ORIGIN_HEADERS caching mode on Cloud CDN to ensure Cloud CDN caches content depending on responses to requests from the backends.
D. Configure the CACHE_ALL_STATIC caching mode on Cloud CDN to ensure Cloud CDN cache content depending on responses to requests from the backends.

Answer: C

Explanation:
For Cloud CDN to cache content effectively, the backend application must include appropriate HTTP caching headers, such as Cache-Control or Expires, in its responses. By configuring the USE_ORIGIN_HEADERS caching mode, Cloud CDN will honor these headers, ensuring that the defined content is cached and served correctly.
If the backend has already defined the caching behavior through headers, this configuration ensures that the CDN respects the backend's caching rules, avoiding unnecessary caching or bypassing the application's control over cache behavior. This resolves the issue while aligning with the application's defined behavior.

NEW QUESTION # 270
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 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.
B. 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.
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 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.

Answer: A

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 # 271
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. /22
B. /25
C. /21
D. /23

Answer: B

Explanation:
Reference:
https://cloud.google.com/kubernetes-engine/docs/how-to/alias-ips

NEW QUESTION # 272
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