Google Professional Cloud Network Engineer exam dumps

Google Professional Cloud Network Engineer practice question 741 of 790

Professional Cloud Network Engineer. Professional level, Google Cloud. Free question with the correct answer and a full explanation.

Google Professional Cloud Network Engineer Question 741

Select 3Google Cloud Platform

You have set up a VPN connection between your on-premises data center and Google Cloud using Cloud VPN. The VPN tunnel was working correctly, but recently, the connection has started to experience intermittent outages. You need to troubleshoot and identify the root cause of the issue. Which steps should you take to resolve the problem?

  1. A

    Verify that the Cloud VPN gateway's external IP address has not changed.

  2. B

    Check the logs in Cloud Logging for the VPN gateway to identify any error messages.

  3. C

    Ensure that the on-premises VPN device is configured to use IKEv2, as Cloud VPN does not support IKEv1.

  4. D

    Validate that the firewall rules in the VPC network allow traffic from the on-premises network.

  5. E

    Examine the MTU settings on both the on-premises device and the Google Cloud VPN gateway.

Show answer and explanation

Correct answers: B, D, E

Explanation

To troubleshoot intermittent VPN outages, you can use Cloud Logging to check for error messages and misconfigurations. Firewall rules must also be verified to ensure they allow traffic from the on-premises network. Additionally, mismatched MTU settings can cause packet drops, so it's important to confirm that the MTU is correctly configured on both ends of the VPN connection.

  • A. Incorrect.

    The external IP address of the Cloud VPN gateway is static and does not change, so this step is unnecessary.

  • B. Correct.

    Cloud Logging provides detailed logs for the VPN gateway, which can help identify connection issues or misconfigurations.

  • C. Incorrect.

    Cloud VPN supports both IKEv1 and IKEv2, so this is not a valid troubleshooting step unless there is a specific compatibility issue.

  • D. Correct.

    Firewall rules in the VPC network must allow traffic from the on-premises network. If the rules are misconfigured, it can lead to connectivity issues.

  • E. Correct.

    Mismatched MTU settings between the on-premises device and Cloud VPN can cause packet fragmentation or drops, leading to intermittent connectivity.

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