Professional-Cloud-Network-Engineer考試證照綜述 - Professional-Cloud-Network-Engineer考試資料

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為了獲得 Google Professional-Cloud-Network-Engineer 認證，候選人必須通過一個耗時 2 小時、50 道問題的考試，考試費用為 200 美元。該考試提供多種語言版本，可以在線上或測試中心進行。候選人還必須有 Google Cloud Platform 的實踐經驗，並熟悉網路技術和概念。該認證有效期為兩年，可以通過通過更新的考試版本或完成 Google Cloud 提供的專業發展課程來更新。

Google的Professional-Cloud-Network-Engineer認證考試旨在測試設計、實施和管理Google Cloud Platform上網路解決方案所需的技能和知識。這項認證非常適合想要展示他們在雲端網路工程方面專業知識的專業人員，並展示他們與Google Cloud Platform技術合作的能力。

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Google Professional-Cloud-Network-Engineer（Google Cloud Certified - Professional Cloud Network Engineer）考試是由Google Cloud提供的認證考試。該考試旨在測試有興趣成為專業雲網絡工程師的個人的技能和知識。該考試涵蓋與雲網絡相關的廣泛主題，包括設計和實施網絡基礎設施、配置網絡服務和管理網絡安全等。

最新的 Google Cloud Platform Professional-Cloud-Network-Engineer 免費考試真題 (Q18-Q23):

問題 #18
Your organization has a subset of applications in multiple regions that require internet access.
You need to control internet access from applications to URLs, including hostnames and paths.
The compute instances that run these applications have an associated secure tag. What should you do?

A. Deploy a Secure Web Proxy instance in each region. Apply a Secure Web Proxy policy to allow access from machines that match the secure tag to the URLs defined in a URL list.
B. Deploy a single Secure Web Proxy instance with global access enabled. Apply a Secure Web Proxy policy to allow access from machines that match the secure tag to the URLs defined in a URL list.
C. Deploy a Cloud NAT gateway. Use fully qualified domain name (FQDN) objects in the firewall policy rules to filter outgoing traffic to specific domains from machines that match the secure tag.
D. Deploy a Cloud NAT gateway. Use fully qualified domain name (FQDN) objects in the firewall policy rules to filter outgoing traffic to specific domains from machines that match a service account.

答案：A

解題說明：
Secure Web Proxy (SWP) is the appropriate solution for controlling internet access from applications based on specific URLs, including hostnames and paths. Since the applications are in multiple regions, you need to deploy an SWP instance in each region to ensure low latency and efficient routing of traffic to the internet.
The secure tag associated with the compute instances allows you to apply the SWP policy only to the desired instances. The SWP policy can define URL lists that specify which URLs the applications are allowed to access, providing granular control over outbound internet access. This approach ensures compliance with organizational requirements while maintaining security and performance across multiple regions.

問題 #19
You need to configure a static route to an on-premises resource behind a Cloud VPN gateway that is configured for policy-based routing using the gcloud command.
Which next hop should you choose?

A. The IP address of the instance on the remote side of the VPN tunnel
B. The name and region of the Cloud VPN tunnel
C. The default internet gateway
D. The IP address of the Cloud VPN gateway

答案：B

解題說明：
When you create a route based tunnel using the Cloud Console, Classic VPN performs both of the following tasks: Sets the tunnel's local and remote traffic selectors to any IP address (0.0.0.0/0) For each range in Remote network IP ranges, Google Cloud creates a custom static route whose destination (prefix) is the range's CIDR, and whose next hop is the tunnel. https://cloud.google.com/network-connectivity/docs/vpn
/how-to/creating-static-vpns

問題 #20
You are troubleshooting connectivity issues between Google Cloud and a public SaaS provider. Connectivity between the two environments is through the public internet. Your users are reporting intermittent connection errors when using TCP to connect; however, ICMP tests show no failures. According to users, errors occur around the same time every day. You want to troubleshoot and gather information by using Google Cloud tools that are most likely to provide insights into what is occurring within Google Cloud. What should you do?

A. Enable the Firewall Insights API. Set the deny rule insights observation period to one day. Review the insights to assure there are no firewall rules denying traffic.
B. Enable and review Cloud Logging on your Cloud NAT gateway. Look for logs with errors matching the destination IP address of the public SaaS provider.
C. Enable and review Cloud Logging for Cloud Armor. Look for logs with errors matching the destination IP address of the public SaaS provider.
D. Create a Connectivity Test by using TCP, the source IP address of your test VM, and the destination IP address of the public SaaS provider. Review the live data plane analysis and take the next steps based on the test results.

答案：D

解題說明：
Creating a Connectivity Test using TCP in Network Intelligence Center allows you to simulate the connection to the public SaaS provider and receive real-time data plane analysis. This will help determine whether there are any issues with the network path for the specific TCP connection.

問題 #21
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. Configure global load balancing to point 172.16.45.0/24 to the correct instance.
B. Use VPC peering to allow traffic to route between the 10.1.0.0/24 network and the 172.16.45.0/24 network.
C. Create unique DNS records for each service that sends traffic to the desired IP address.
D. 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.

答案：C

問題 #22
Your company offers a popular gaming service. Your instances are deployed with private IP addresses, and external access is granted through a global load balancer.
You have recently engaged a traffic-scrubbing service and want to restrict your origin to allow connections only from the traffic-scrubbing service.
What should you do?

A. Create a VPC Service Control Perimeter that blocks all traffic except for the traffic-scrubbing service.
B. Create IPTables firewall rules that block all traffic except for the traffic-scrubbing service.
C. Create a VPC Firewall rule that blocks all traffic except for the traffic-scrubbing service.
D. Create a Cloud Armor Security Policy that blocks all traffic except for the traffic-scrubbing service.

答案：D

解題說明：
Google Cloud Armor security policies are available only for backend services behind an external HTTP(S) load balancer, TCP proxy load balancer, or an SSL proxy load balancer. The load balancer can be in Premium Tier or Standard Tier.
https://cloud.google.com/armor/docs/security-policy-overview

問題 #23
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