Google Professional-Cloud-Network-Engineer Practice Exams Free & Professional-Cloud-Network-Engineer Certification Test Answers

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

Section	Objectives
Topic 1: Manage, monitor, and optimize network operations	- Monitor and troubleshoot network infrastructure 1. Troubleshoot connectivity issues 2. Analyze latency and traffic flow 3. Monitor logs and metrics 4. Optimize network cost and performance
Topic 2: Implement Virtual Private Cloud (VPC) instances	- Configure and manage VPC networks 1. Implement Shared VPC 2. Configure firewall rules 3. Manage GKE networking 4. Configure subnets and routes
Topic 3: Configure network services	- Deploy and manage Google Cloud network services 1. Configure Cloud DNS 2. Configure Cloud CDN 3. Enable additional networking services 4. Configure load balancing
Topic 4: Implement network security	- Secure Google Cloud network environments 1. Implement secure SSH access 2. Configure third-party network security appliances 3. Configure Identity and Access Management 4. Configure Cloud Armor policies
Topic 5: Implement hybrid interconnectivity	- Implement hybrid networking solutions 1. Implement site-to-site connectivity 2. Configure Cloud Router and dynamic routing 3. Configure Cloud VPN 4. Configure Cloud Interconnect
Topic 6: Design, plan, and prototype a Google Cloud network	- Design overall network architecture 1. Design Virtual Private Cloud (VPC) networks 2. Plan secure and scalable network topologies 3. Design hybrid network connectivity 4. Design IP addressing plans for Google Kubernetes Engine

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Google Cloud Certified - Professional Cloud Network Engineer Sample Questions (Q293-Q298):

NEW QUESTION # 293
Question:
You are configuring the firewall endpoints as part of the Cloud Next Generation Firewall (Cloud NGFW) intrusion prevention service in Google Cloud. You have configured a threat prevention security profile, and you now need to create an endpoint for traffic inspection. What should you do?

A. Create a Private Service Connect endpoint within the zone, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.
B. Attach the profile to the VPC network, create a firewall endpoint within the zone, and use a firewall policy rule to apply the L7 inspection.
C. Create a firewall endpoint within the zone, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.
D. Create a firewall endpoint within the region, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.

Answer: D

Explanation:
For Cloud NGFW in Google Cloud, firewall endpoints are typically created at the regional level, allowing you to associate these with your VPC network for Layer 7 traffic inspection. This regional setup ensures high availability and scales the inspection service across the network.

NEW QUESTION # 294
Your company uses VPC firewall rules and denies all egress traffic. You need to allow some VMs to contact external websites based on their fully qualified domain name (FQDN). You apply the new configuration, but the traffic is still denied. You need to adjust your setup to apply the new configuration. What would you do?

A. Update the default policy and rule evaluation order to AFTER_CLASSIC_FIREWALL.
B. Raise the priority of the network firewall policy rules.
C. Update the default policy and rule evaluation order to BEFORE_CLASSIC_FIREWALL.
D. Lower the priority of the network firewall policy rules.

Answer: C

Explanation:
Network firewall policies that use FQDN-based rules are, by default, evaluated after the classic VPC firewall rules. Your "deny all egress" VPC rule takes effect first and blocks the traffic before your FQDN allow rules are ever reached. Switching the policy evaluation order to BEFORE_CLASSIC_FIREWALL ensures your FQDN-based allow rules run first, letting the designated VMs reach external sites, while still preserving your broader deny-all egress rule.

NEW QUESTION # 295
Your company has just launched a new critical revenue-generating web application. You deployed the application for scalability using managed instance groups, autoscaling, and a network load balancer as frontend. One day, you notice severe bursty traffic that the caused autoscaling to reach the maximum number of instances, and users of your application cannot complete transactions. After an investigation, you think it as a DDOS attack. You want to quickly restore user access to your application and allow successful transactions while minimizing cost.
Which two steps should you take? (Choose two.)

A. Increase the maximum autoscaling backend to accommodate the severe bursty traffic.
B. Use Cloud Armor to blacklist the attacker's IP addresses.
C. SSH into the backend compute engine instances, and view the auth logs and syslogs to further understand the nature of the attack.
D. Shut down the entire application in GCP for a few hours. The attack will stop when the application is offline.
E. Create a global HTTP(s) load balancer and move your application backend to this load balancer.

Answer: A,C

Explanation:
It says "You want to quickly restore user access to your application and allow successful transactions while minimizing cost." if you want to quickly restore access you need temp increase in auto scale while your figuring out the cause of the sudden burst of traffic.

NEW QUESTION # 296
Your company uses web application firewall (WAF) capabilities from a third-party cloud WAF provider. This WAF provider proxies all the HTTPS connections from internet clients, applies security policies, and then opens a new HTTPS connection to the public IP address of your global Application Load Balancer in Google Cloud. Your Google Cloud workloads are the backend of this global Application Load Balancer. Currently, Cloud Am1or is not configured. You need to create a Cloud Armor security policy that blocks sessions that originate from internet clients with source IP addresses that belong to the IP_RANGE_BLOCK IP range. The block must be executed by the Cloud Armor security policy; it will not be done by the third-party cloud WAF provider. Whal should you do?

A. 1. Create a new Cloud Armor backend security policy. In the policy, set the userIpRequestHeaders[] attribute.
2. Add a policy rule that denies traffic that matches the inIpRange(origin.ip, 'IP_RANGE_BLOCK') statement.
3. Apply the policy to the backend service that includes all your Google Cloud workloads.
B. 1. Create a new Cloud Armor network edge security policy. In the policy, set the userIpRequestHeaders[] attribute.
2. Add a policy rule that denies traffic that matches inIpRange(origin.user_ip,
'IP_RANGE_BLOCK') statement.
3. Apply the policy to the backend service that includes all your Google Cloud workloads.
C. 1. Create a new Cloud Armor backend security policy. In the policy, set the userIpRequestHeaders[] attribute.
2. Add a policy rule that denies traffic that matches the inIpRange(origin.user_ip,
'IP_RANGE_BLOCK') statement.
3. Apply the policy to the backend service that includes all your Google Cloud workloads.
D. 1. Create a new Cloud Armor network edge security policy. In the policy, set the userIpRequestHeaders[] attribute.
2. Add a policy rule that denies traffic that matches the inIpRange(origin.ip, 'IP_RANGE_BLOCK') statement.
3. Apply the policy to the backend service that includes all your Google Cloud workloads.

Answer: C

Explanation:
A backend security policy is required because the Cloud Armor rules must apply to traffic after it passes through the third-party WAF and reaches the backend service. The userIpRequestHeaders[] attribute extracts the original client IP from headers inserted by the WAF (e.g., X-Forwarded-For). The rule checks if the client's IP falls within the IP_RANGE_BLOCK range and denies the traffic. This ensures Cloud Armor blocks traffic based on the actual client IP, as the third-party WAF creates a new connection using its IP for proxied traffic.

NEW QUESTION # 297
You are responsible for connectivity between AWS. Google Cloud, and an on-premises data center. Soon, the application team will deploy a data replication service that will move approximately 900 TB of data between Google Cloud and AWS daily. This data is sensitive and must be encrypted in transit. Your data center already has connections to both AWS and Google Cloud through 10 Gbps circuits. You need to configure additional connectivity between these environments and ensure the highest performance and lowest latency to meet business requirements. You also need to keep the existing connectivity topology to the on-premises data center the same. What should you do?

A. Q * Deploy Dedicated Interconnect connections between Google Cloud and your on-premises data center with 100 Gbps circuits from Google Cloud to your on-premises data center.
* Deploy an AWS Direct Connect 100 Gbps circuit from AWS to your on-premises data center.
* Create VLAN attachments in your VPC, configuring IPsec encryption on both sides of the connection.
* Use Cloud Router and BGP to exchange dynamic routes between AWS. Google Cloud, and the on- premises data center.
* Remove the obsolete 10 Gbps circuits on Google Cloud and AWS.
B. Q * Deploy Dedicated Interconnect connections between Google Cloud and your on-premises data center with 100 Gbps circuits.
* Deploy an AWS Direct Connect 100 Gbps circuit from AWS to your on-premises data center as well.
* Create VLAN attachments in your VPC.
* Use Cloud Router and BGP to exchange dynamic routes between AWS, Google Cloud, and the on- premises data center.
* Remove the obsolete 10 Gbps circuits on Google Cloud and AWS.
C. Q * Deploy Cross-Cloud Interconnect connections between AWS and Google Cloud with 100 Gbps circuits.
* Enable MACsec for Cloud Interconnect on the circuits, and create VLAN attachments in your VPC.
* Use Cloud Router and BGP to exchange dynamic routes between AWS and Google Cloud.
D. (Q) * Deploy Cross-Cloud Interconnect connections between AWS and Google Cloud with 100 Gbps circuits.
* Create VLAN attachments in your VPC, configuring IPsec encryption on both sides of the connection.
* Use Cloud Router and BGP to exchange dynamic routes between AWS and Google Cloud.

Answer: D

Explanation:
The core requirement is to move a massive amount of sensitive data (900 TB daily) directly between Google Cloud and AWS with highest performance, lowest latency, and in-transit encryption, while maintaining existing on-premises connectivity.
Option A directly addresses this by recommending Cross-Cloud Interconnect with 100 Gbps circuits between AWS and Google Cloud. Cross-Cloud Interconnect is designed for high-throughput, low-latency connectivity between different cloud providers. The crucial part for sensitive data and encryption is "configuring IPsec encryption on both sides of the connection," as Cross-Cloud Interconnect itself provides a private path but not inherent encryption. Cloud Router and BGP are essential for dynamic route exchange. This option focuses on the direct cloud-to-cloud path for the high volume data transfer.
Options B and C involve upgrading the existing connections to the on-premises data center and routing all traffic through it. While this could work, it adds an unnecessary hop and likely higher latency for direct cloud- to-cloud traffic, making it less optimal for "highest performance and lowest latency" between clouds.
Additionally, removing existing 10Gbps circuits is not necessary and might impact the existing topology if not done carefully.
Option D suggests MACsec, which provides Layer 2 encryption. While good for physical security, for data replication services with sensitive data, IPsec (Layer 3 encryption) is more commonly used and flexible for end-to-end encryption across a routed network, and is typically preferred for data integrity and confidentiality over an IP network. Also, MACsec requires specific hardware support and is typically implemented at the interconnect termination points, not necessarily end-to-end for an application. Given the sensitive nature of the data and the large volume, IPsec provides the necessary transport-level encryption.
Exact Extract:
"Cross-Cloud Interconnect enables direct connectivity between your Google Cloud VPC networks and other cloud provider networks. It provides high-bandwidth, low-latency connections, ideal for large-scale data transfers between clouds."
"For sensitive data, you can implement IPsec VPN tunnels over Cross-Cloud Interconnect connections to provide encryption in transit. This ensures data confidentiality and integrity over the dedicated interconnect."
"Cloud Router dynamically exchanges routes between your Google Cloud VPC network and your other cloud network over the Cross-Cloud Interconnect connection using BGP."Reference: Google Cloud Cross-Cloud Interconnect Documentation - Overview, Encryption options for hybrid connectivity

NEW QUESTION # 298
......

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