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The Google Professional Cloud Network Engineer exam helps the specialists use the Google Cloud Platform for managing and implementing network architectures.

Exam Topics

To pass the Google Professional Cloud Network Engineer certification exam, the candidates must have a good comprehension of the topics covered in it. The test takers are recommended to go through the official guide to get a comprehensive understanding of the knowledge areas they need to develop mastery in. The highlights of the domains that make part of the exam syllabus are provided below:

Implementation of Network Security
Here the students will need to demonstrate their skills in configuring Identity & Access Management (IAM). This part also requires their proficiency in configuring the Cloud Armor policies as well as configuring the third-party device incorporation into Virtual Private Cloud with the help of multi-nic (NGFW). Besides that, the applicants should know how to perform the management of keys for Secure Shell (SSH) access.
Optimization of Network Resources
The last objective of the certification exam focuses on the ability of the specialists to perform the optimization of traffic flow. This includes their understanding of load balancer & CDN location, global versus regional dynamic routing, expansion of subnet Classless Inter-Domain Routing (CIDR) ranges in service, as well as accommodation of workload increases (for instance, autoscaling versus manual scaling). The individuals will also need to prove that they know how to perform the optimization for cost and efficiency. This involves cost optimization, automation, VPN versus interconnect, and bandwidth utilization.
Implementation of Hybrid Interconnectivity
The technical tasks covered in this section include the configuration of interconnect, configuration of site-to-site IP Security VPN (including policy-based, route-based, dynamic/static routing), as well as configuration of Cloud Router for reliability.

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Google Professional-Cloud-Network-Engineer Exam is one of the latest certifications offered by Google to validate an individual's expertise in deploying, managing, and ensuring the reliability of network infrastructure on the Google Cloud Platform. Professional-Cloud-Network-Engineer exam is designed to test your understanding of various network architectures, network security, and network optimization concepts. If you are looking to become a Google Cloud Certified Professional Cloud Network Engineer, Professional-Cloud-Network-Engineer Exam is a must-have.

Google Cloud Certified - Professional Cloud Network Engineer Sample Questions (Q291-Q296):

NEW QUESTION # 291
You are designing an IP address scheme for new private Google Kubernetes Engine (GKE) clusters, Due to IP address exhaustion of the RFC 1918 address space in your enterprise, you plan to use privately used public IP space for the new dusters. You want to follow Google-recommended practices, What should you do after designing your IP scheme?

A. Create the minimum usable RFC 1918 primary and secondary subnet IP ranges for the clusters. Re-use the secondary address range for the pods across multiple private GKE clusters.
B. Create privately used public IP primary and secondary subnet ranges for the clusters. Create a private GKE cluster With the following options selected: --enab1e-ip-a1ias and --enable-private-nodes.
C. Create privately used public IP primary and secondary subnet ranges for the clusters. Create a private GKE cluster With the following options selected and - siable-default-snat,--enable-ip-alias, and -enable-private-nodes
D. Create the minimum usable RFC 1918 primary and secondary subnet IP ranges for the clusters Re-use the secondary address range for the services across multiple private GKE clusters.

Answer: C

Explanation:
The correct answer is D. Create privately used public IP primary and secondary subnet ranges for the clusters. Create a private GKE cluster with the following options selected: --disable-default-snat, --enable-ip-alias, and --enable-private-nodes.
This answer is based on the following facts:
Privately used public IP (PUPI) addresses are any public IP addresses not owned by Google that a customer can use privately on Google Cloud1. You can use PUPI addresses for GKE pods and services in private clusters to mitigate address exhaustion.
A private GKE cluster is a cluster that has no public IP addresses on the nodes2. You can use private clusters to isolate your workloads from the public internet and enhance security.
The --disable-default-snat option disables source network address translation (SNAT) for the cluster3. This option allows you to use PUPI addresses without conflicting with other public IP addresses on the internet.
The --enable-ip-alias option enables alias IP ranges for the cluster4. This option allows you to use separate subnet ranges for nodes, pods, and services, and to specify the size of those ranges.
The --enable-private-nodes option enables private nodes for the cluster5. This option ensures that the nodes have no public IP addresses and can only communicate with other Google Cloud resources in the same VPC network or peered networks.
The other options are not correct because:
Option A is not suitable. Creating RFC 1918 primary and secondary subnet IP ranges for the clusters does not solve the problem of address exhaustion. Re-using the secondary address range for pods across multiple private GKE clusters can cause IP conflicts and routing issues.
Option B is also not suitable. Creating RFC 1918 primary and secondary subnet IP ranges for the clusters does not solve the problem of address exhaustion. Re-using the secondary address range for services across multiple private GKE clusters can cause IP conflicts and routing issues.
Option C is not feasible. Creating privately used public IP primary and secondary subnet ranges for the clusters is a valid step, but creating a private GKE cluster with only --enable-ip-alias and --enable-private-nodes options is not enough. You also need to disable default SNAT to avoid IP conflicts with other public IP addresses on the internet.

NEW QUESTION # 292
You have a storage bucket that contains the following objects:
- folder-a/image-a-1.jpg
- folder-a/image-a-2.jpg
- folder-b/image-b-1.jpg
- folder-b/image-b-2.jpg
Cloud CDN is enabled on the storage bucket, and all four objects have been successfully cached. You want to remove the cached copies of all the objects with the prefix folder-a, using the minimum number of commands.
What should you do?

A. Disable Cloud CDN on the storage bucket. Wait 90 seconds. Re-enable Cloud CDN on the storage bucket.
B. Issue a cache invalidation command with pattern /folder-a/*.
C. Make sure that all the objects with prefix folder-a are not shared publicly.
D. Add an appropriate lifecycle rule on the storage bucket.

Answer: B

Explanation:
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/Invalidation.html

NEW QUESTION # 293
You need to create a new VPC network that allows instances to have IP addresses in both the 10.1.1.0/24 network and the 172.16.45.0/24 network.
What should you do?

A. Create unique DNS records for each service that sends traffic to the desired IP address.
B. Configure an alias-IP range of 172.16.45.0/24 on the virtual instances within the VPC subnet of 10.1.1.0/24.
C. Use VPC peering to allow traffic to route between the 10.1.0.0/24 network and the 172.16.45.0/24 network.
D. Configure global load balancing to point 172.16.45.0/24 to the correct instance.

Answer: A

Explanation:
Explanation/Reference:

NEW QUESTION # 294
You are creating an instance group and need to create a new health check for HTTP(s) load balancing. Which two methods can you use to accomplish this? (Choose two.)

A. Create a new health check using the gcloud command line tool.
B. Create a new legacy health check using the gcloud command line tool.
C. Create a new legacy health check using the Health checks section in the GCP Console.
D. Create a new health check, or select an existing one, when you complete the load balancer's backend configuration in the GCP Console.
E. Create a new health check using the VPC Network section in the GCP Console.

Answer: A,D

Explanation:
Unless you use target pool-based Network LB, then it's required to use legacy health check, otherwise, legacy health check is not recommended to be used for HTTP(S) LB.
https://cloud.google.com/load-balancing/docs/health-check-concepts

NEW QUESTION # 295
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: C

Explanation:
Reference: https://cloud.google.com/vpn/docs/concepts/overview

NEW QUESTION # 296
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