Free Google Professional-Cloud-Network-Engineer Exam Actual Questions

The questions for Professional-Cloud-Network-Engineer were last updated On Nov 16, 2024

Question No. 1

You have provisioned a Dedicated Interconnect connection of 20 Gbps with a VLAN attachment of 10 Gbps. You recently noticed a steady increase in ingress traffic on the Interconnect connection from the on-premises data center. You need to ensure that your end users can achieve the full 20 Gbps throughput as quickly as possible. Which two methods can you use to accomplish this? (Choose two.)

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Correct Answer: C, E

Question No. 2

You are designing the architecture for your organization so that clients can connect to certain Google APIs. Your plan must include a way to connect to Cloud Storage and BigQuery. You also need to ensure the traffic does not traverse the internet. You want your solution to be cloud-first and require the least amount of configuration steps. What should you do?

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Correct Answer: B

Enabling Private Google Access on the subnet allows VMs to access Google APIs (like Cloud Storage and BigQuery) directly, without routing traffic over the internet. This approach is cloud-native and involves minimal setup, aligning with a cloud-first strategy.


Question No. 3

Your company's Google Cloud-deployed, streaming application supports multiple languages. The application development team has asked you how they should support splitting audio and video traffic to different backend Google Cloud storage buckets. They want to use URL maps and minimize operational overhead. They are currently using the following directory structure:

/fr/video

/en/video

/es/video

/../video

/fr/audio

/en/audio

/es/audio

/../audio

Which solution should you recommend?

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Correct Answer: A

https://cloud.google.com/load-balancing/docs/url-map#configuring_url_maps

Path matcher constraints Path matchers and path rules have the following constraints: A path rule can only include a wildcard character (*) after a forward slash character (/). For example, /videos/* and /videos/hd/* are valid for path rules, but /videos* and /videos/hd* are not. Path rules do not use regular expression or substring matching. For example, path rules for either /videos/hd or /videos/hd/* do not apply to a URL with the path /video/hd-abcd. However, a path rule for /video/* does apply to that path. https://cloud.google.com/load-balancing/docs/url-map-concepts#pm-constraints


Question No. 4

You have an application hosted on a Compute Engine virtual machine instance that cannot communicate with a resource outside of its subnet. When you review the flow and firewall logs, you do not see any denied traffic listed.

During troubleshooting you find:

* Flow logs are enabled for the VPC subnet, and all firewall rules are set to log.

* The subnetwork logs are not excluded from Stackdriver.

* The instance that is hosting the application can communicate outside the subnet.

* Other instances within the subnet can communicate outside the subnet.

* The external resource initiates communication.

What is the most likely cause of the missing log lines?

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Correct Answer: C

Question No. 5

You are troubleshooting an application in your organization's Google Cloud network that is not functioning as expected. You suspect that packets are getting lost somewhere. The application sends packets intermittently at a low volume from a Compute Engine VM to a destination on your on-premises network through a pair of Cloud Interconnect VLAN attachments. You validated that the Cloud Next Generation Firewall (Cloud NGFW) rules do not have any deny statements blocking egress traffic, and you do not have any explicit allow rules. Following Google-recommended practices, you need to analyze the flow to see if packets are being sent correctly out of the VM to isolate the issue. What should you do?

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Correct Answer: B

Enabling VPC Flow Logs with sample_rate = 1.0 on the VM's subnet will give detailed information about network traffic flowing to and from your VM. You can then query this data in Logs Explorer to check whether packets are leaving the VM and reaching the intended destination. This is a recommended practice for troubleshooting such network issues.