Google Cloud · PCNE
Validates expertise in designing, implementing, and managing Google Cloud network infrastructure including VPCs, hybrid connectivity, load balancing, and network security.
Practice Questions
881
≈ 17 practice exams
Duration
120 minutes
Passing Score
Not publicly disclosed
Difficulty
ProfessionalLast Updated
Jan 2025
Use this PCNE practice exam to prepare for Google Cloud Certified - Professional Cloud Network Engineer (PCNE) with realistic questions, detailed explanations, and focused study modes. The practice bank includes 881 questions for Google Cloud PCNE, so you can review the exam steadily instead of relying on one long cram session.
As you practice, pay extra attention to recurring topics such as VPC Design and Planning, Network Implementation, Managed Network Services, Hybrid and Multi-Cloud Connectivity, and Network Operations and Monitoring. Start with short sessions to identify weak areas, then move into timed quizzes once your accuracy is consistent.
The explanations are especially useful when you want to connect exam wording to the responsibilities and scenarios described in the official certification guidance. Use the free preview first, then unlock the full question bank when you are ready to build a complete study routine.
The Google Cloud Certified – Professional Cloud Network Engineer (PCNE) credential validates advanced expertise in designing, implementing, and managing network infrastructure on Google Cloud. The certification covers the full lifecycle of cloud networking: from architecting Virtual Private Cloud (VPC) topologies and configuring firewall rules, routes, and DNS, to deploying managed services such as Cloud Load Balancing, Cloud CDN, Cloud NAT, and Cloud Armor. It also assesses deep knowledge of hybrid and multi-cloud connectivity through technologies like HA VPN, Cloud Interconnect (Dedicated and Partner), and Network Connectivity Center.
Considered one of the most challenging among Google Cloud's professional-tier certifications, the PCNE exam demands hands-on proficiency with network security architectures, BGP routing, Private Service Connect, packet mirroring, and network observability tools such as VPC Flow Logs and Network Intelligence Center. Candidates are expected to understand the trade-offs between connectivity options, design patterns for Shared VPC and VPC peering, and how to troubleshoot live network environments on Google Cloud.
This certification is designed for network engineers, cloud architects, and infrastructure specialists who design and manage production-grade network environments on Google Cloud. Ideal candidates are professionals who have transitioned from on-premises networking roles into cloud-centric positions, or cloud engineers who own networking responsibilities within their organizations. Typical job titles include Cloud Network Engineer, Network Architect, Senior Cloud Infrastructure Engineer, and Solutions Architect with a networking focus.
Candidates are expected to have a strong foundation in core networking concepts—routing protocols (especially BGP), switching, firewalling, DNS, and load balancing—combined with practical Google Cloud experience. Google recommends at least three years of industry networking experience, with at least one year specifically involving the design and management of Google Cloud–based solutions.
There are no formal prerequisites required to register for the exam. However, Google recommends that candidates have a minimum of three years of industry experience in networking and at least one year of hands-on experience designing and managing solutions on Google Cloud. Candidates without this background are likely to find the exam extremely difficult.
Recommended foundational knowledge includes: IP networking fundamentals (subnetting, routing, NAT), familiarity with BGP and dynamic routing concepts, experience with firewall policy design and network security principles, and working knowledge of DNS (including DNSSEC and split-horizon DNS). Completing Google Cloud's official Professional Cloud Network Engineer learning path on Cloud Skills Boost, including the associated Qwiklabs hands-on labs, is strongly advised before attempting the exam.
The exam consists of 50–60 multiple-choice and multiple-select questions and must be completed within a 2-hour (120-minute) time limit. The exam is available in English and Japanese. Candidates may take the exam either remotely via online proctoring (using Kryterion's Webassessor platform) or in person at an authorized Kryterion testing center. The registration fee is $200 USD (plus applicable taxes).
Google does not publish a specific numeric passing score; results are reported as pass or fail based on a scaled scoring model. The exam is proctored and closed-book—no reference materials are permitted. Certification is valid for two years, after which candidates must renew through a recertification exam during the designated eligibility window.
The Professional Cloud Network Engineer certification positions holders for specialized, high-demand roles including Cloud Network Engineer, Network Architect, Senior Infrastructure Engineer, and Cloud Solutions Architect. Google Cloud's networking specialization commands strong compensation: certified professionals in this discipline report average salaries around $163,000 per year in the United States, reflecting the relative scarcity of engineers who combine deep networking expertise with hands-on Google Cloud experience. Certified professionals consistently earn 10–18% more than non-certified peers in equivalent roles.
As enterprises accelerate hybrid and multi-cloud adoption, network engineers who can design secure, scalable connectivity between on-premises environments and Google Cloud are in sustained demand. The PCNE credential is recognized by Google's partner network as a validated specialization, making it relevant for both independent consultants and professionals employed at Google Cloud partners seeking to demonstrate client-facing expertise. Compared to AWS and Azure networking certifications, the PCNE is considered narrower in scope but deeper in technical rigor, making it a strong differentiator for engineers focused specifically on the Google Cloud ecosystem.
5 sample questions with answers and explanations. The full bank has 881 questions, enough for 17 full-length practice exams.
Preview — answers shown1. Tailwind Traders wants to reduce BGP failover time for their Dedicated Interconnect connections. Currently, when a link fails, it takes approximately 60 seconds for traffic to reroute. What feature should they enable?
Explanation
Bidirectional Forwarding Detection (BFD) provides sub-second failure detection for BGP sessions, reducing failover time from approximately 60 seconds to as little as 5 seconds. BFD operates independently of BGP and can detect link failures much faster than BGP keepalive mechanisms. BFD is supported on Dedicated and Partner Interconnect VLAN attachments using Dataplane v2 or later. Graceful Restart helps maintain forwarding during router restarts but does not speed up failure detection. ECMP provides load balancing but does not improve failure detection time. Increasing BGP keepalive timers would actually slow down failure detection.
2. Tailwind Traders is deploying Cloud NGFW Enterprise for intrusion prevention. They have created firewall endpoints and associated them with their VPC. However, traffic is not being inspected. What additional configuration is required?
Explanation
Creating firewall endpoints and associations enables traffic inspection capability, but doesn't automatically route traffic for inspection. You must create firewall policy rules using the apply_security_profile_group action instead of traditional allow/deny actions. This action specifies the security profile group for traffic inspection. Without these rules, traffic flows normally without L7 inspection. Packet mirroring is for Cloud IDS, not NGFW.
3. Woodgrove Bank wants to use Secure Web Proxy with Cloud Run services using Direct VPC egress. Is this configuration supported?
Explanation
The Direct VPC egress feature of Cloud Run supports Secure Web Proxy. This allows Cloud Run services using Direct VPC egress to route their outbound HTTP/HTTPS traffic through Secure Web Proxy for inspection and policy enforcement. This integration enables organizations to apply consistent egress security controls to their serverless workloads without requiring Serverless VPC Access connectors.
4. Fabrikam needs to configure Private Google Access for a subnet where VMs will access Google APIs. They enable Private Google Access on the subnet. What additional configuration is required for VMs without external IPs to reach googleapis.com?
Explanation
Private Google Access enables VMs with only internal IPs to access Google APIs, but a route to the API destination must exist in the VPC. The default route (0.0.0.0/0 to default internet gateway) typically provides this - traffic to Google APIs stays within Google's network and doesn't actually traverse the public internet. If you remove the default route, you must create a custom static route for the Private Google Access VIP ranges (e.g., 199.36.153.4/30) with next hop as default internet gateway. Cloud NAT is not required for Google API access when Private Google Access is enabled.
5. A healthcare organization needs to connect their on-premises data center to Google Cloud with a 10 Gbps dedicated connection. They require encryption of all data in transit at Layer 2 and want to ensure no traffic traverses the public internet. The connection must support dynamic routing with BGP. Which solution meets these requirements?
Explanation
Dedicated Interconnect with MACsec provides Layer 2 encryption for 10 Gbps connections over private circuits that never traverse the public internet, and supports BGP dynamic routing through Cloud Router. HA VPN uses IPsec which provides Layer 3 encryption, not Layer 2 as required. Partner Interconnect typically doesn't provide the full 10 Gbps dedicated capacity and MACsec support depends on the service provider. Cloud VPN tunnels are limited to 3 Gbps per tunnel maximum and cannot aggregate to achieve 10 Gbps throughput.
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