100% Pass Quiz 2026 Google Latest New Professional-Cloud-Network-Engineer Exam Pattern

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Google Professional-Cloud-Network-Engineer Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Designing and planning a Google Cloud VPC network	26%	- Designing VPC networks 1. Private Service Access / Private Service Connect 2. Subnet design and CIDR planning 3. IP address management 4. Standalone vs Shared VPC - Designing hybrid and multi-cloud networks 1. Cloud Router and BGP design 2. Cloud Interconnect / Cloud VPN architecture - Designing for GKE networking 1. Alias IP ranges, private control plane - Designing overall network architecture 1. DNS topology design 2. High availability, disaster recovery, scalability 3. Network tiers (Premium/Standard)
Topic 2: Implementing a VPC network	20%	- Configuring VPC resources 1. Networks, subnets, firewall rules/policies 2. Private Google Access, service accounts - VPC connectivity 1. Dynamic and static routing 2. VPC Peering, Shared VPC setup - Network Connectivity Center 1. Spoke and hub configuration - Hierarchical firewalls and security policies 1. Cloud Next Generation Firewall
Topic 3: Configuring managed network services	16%	- Cloud NAT 1. Address allocation, port management - Cloud CDN 1. Caching rules, origin configuration - Load balancing 1. Internal/external, regional/global types 2. Backend services, NEGs, health checks - Cloud DNS 1. DNSSEC, logging 2. Public/private zones, forwarding, peering
Topic 4: Managing, monitoring, and troubleshooting network operations	12%	- Troubleshooting connectivity 1. VPN/Interconnect issues, BGP errors 2. Load balancer and packet loss diagnosis - Monitoring and logging 1. Network Intelligence Center 2. VPC Flow Logs, Firewall Insights 3. Cloud Logging, Cloud Monitoring
Topic 5: Configuring cloud network security solutions	12%	- Cloud Armor 1. Security policies, WAF rules, DDoS protection - VPC Service Controls 1. Service perimeters, access levels - Secure Web Proxy 1. URL filtering, access control
Topic 6: Configuring hybrid and multi-cloud connectivity	14%	- Cloud Router 1. BGP configuration, route advertisement - Cloud Interconnect 1. Dedicated, Partner Interconnect, VLAN attachments - Cloud VPN 1. Site-to-site, HA VPN, policy-based/route-based

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Google Cloud Certified - Professional Cloud Network Engineer Sample Questions (Q252-Q257):

NEW QUESTION # 252
You are using a 10-Gbps direct peering connection to Google together with the gsutil tool to upload files to Cloud Storage buckets from on-premises servers. The on-premises servers are 100 milliseconds away from the Google peering point. You notice that your uploads are not using the full 10-Gbps bandwidth available to you. You want to optimize the bandwidth utilization of the connection.
What should you do on your on-premises servers?

A. Compress files using utilities like tar to reduce the size of data being sent.
B. Use the perfdiag parameter in your gsutil command to enable faster performance: gsutil perfdiag gs://[BUCKET NAME].
C. Tune TCP parameters on the on-premises servers.
D. Remove the -m flag from the gsutil command to enable single-threaded transfers.

Answer: C

Explanation:
https://cloud.google.com/solutions/tcp-optimization-for-network-performance-in-gcp-and-hybrid
https://cloud.google.com/solutions/tcp-optimization-for-network-performance-in-gcp-and-hybrid https://cloud.google.com/blog/products/gcp/5-steps-to-better-gcp-network-performance?hl=ml

NEW QUESTION # 253
Your organization is implementing a new security policy to control how firewall rules are applied to control flows between virtual machines (VMs). Using Google-recommended practices, you need to set up a firewall rule to enforce strict control of traffic between VM A and VM B.
You must ensure that communications flow only from VM A to VM B within the VPC, and no other communication paths are allowed. No other firewall rules exist in the VPC. Which firewall rule should you configure to allow only this communication path?

A. Firewall rule direction: ingress
Action: allow
Target: specific VM B tag
Source ranges: VM A tag and VM A source IP address
Priority: 1000
B. Firewall rule direction: ingress
Action: allow
Target: VM A service account
Source ranges: VM B service account and VM B source IP address
Priority: 100
C. Firewall rule direction: ingress
Action: allow
Target: VM B service account
Source ranges: VM A service account
Priority: 1000
D. Firewall rule direction: ingress
Action: allow
Target: specific VM A tag
Source ranges: VM B tag and VM B source IP address
Priority: 100

Answer: D

NEW QUESTION # 254
Question:
Your organization has a hub and spoke architecture with VPC Network Peering, and hybrid connectivity is centralized at the hub. The Cloud Router in the hub VPC is advertising subnet routes, but the on-premises router does not appear to be receiving any subnet routes from the VPC spokes. You need to resolve this issue.
What should you do?

A. Create a BGP route policy at the Cloud Router, and ensure the subnets of the VPC spokes are being announced towards the on-premises environment.
B. Create custom routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.
C. Create custom learned routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.
D. Create custom routes at the Cloud Router in the spokes to advertise the subnets of the VPC spokes.

Answer: C

Explanation:
Creating custom learned routes at the hub's Cloud Router is required for advertising VPC spokes' subnets to the on-premises environment. This centralizes route configuration and ensures that all spoke subnet routes are propagated to the hybrid network.

NEW QUESTION # 255
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 all projects
B. VPC network in the Host Project
C. VPC network in the Sales, Marketing, and IT Projects
D. VPC network in the IT Project

Answer: B

Explanation:
Reference:
https://cloud.google.com/interconnect/docs/how-to/dedicated/using-interconnects-other-projects

NEW QUESTION # 256
Your team deployed two applications in GKE that are exposed through an external Application Load Balancer. When queries are sent to www.mountkirkgames.com/sales and www.mountkirkgames.com/get-an-analysis, the correct pages are displayed. However, you have received complaints that www.mountkirkgames.com yields a 404 error. You need to resolve this error. What should you do?

A. Review the Ingress YAML file. Define the default backend. Reapply the YAML.
B. Review the Service YAML file. Define a default backend. Reapply the YAML.
C. Review the Service YAML file. Add a new path rule for the * character that directs to the base service. Reapply the YAML.
D. Review the Ingress YAML file. Add a new path rule for the * character that directs to the base service. Reapply the YAML.

Answer: A

Explanation:
Default Backend for Ingress: The 404 error occurs because there is no default backend configured in the Ingress resource to handle requests to the root path (www.mountkirkgames.com). Without a default backend, any requests that do not match specific path rules (e.g., /sales or /get-an-analysis) will result in a 404 error.
Solution:
In the Ingress YAML file, you need to define a default backend that handles requests to paths that do not match any specified rules.
The default backend should point to a Service in your GKE cluster that serves the appropriate content for the root path.
Reapply the YAML: After defining the default backend in the Ingress resource, apply the updated YAML file to resolve the issue and handle requests to the root path.

NEW QUESTION # 257
......

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