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Question 194 - Professional Cloud Network Engineer discussion

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Your organization recently exposed a set of services through a global external Application Load Balancer. After conducting some testing, you observed that responses would intermittently yield a non-HTTP 200 response. You need to identify the error. What should you do? (Choose 2 answers)

A.

Access a VM in the VPC through SSH, and try to access a backend VM directly. If the request is successful from the VM, increase the quantity of backends.

Answers
A.

Access a VM in the VPC through SSH, and try to access a backend VM directly. If the request is successful from the VM, increase the quantity of backends.

B.

Enable and review the health check logs. Review the error responses in Cloud Logging.

Answers
B.

Enable and review the health check logs. Review the error responses in Cloud Logging.

C.

Validate the health of the backend service. Enable logging on the load balancer, and identify the error response in Cloud Logging. Determine the cause of the error by reviewing the statusDetails log field.

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C.

Validate the health of the backend service. Enable logging on the load balancer, and identify the error response in Cloud Logging. Determine the cause of the error by reviewing the statusDetails log field.

D.

Delete the load balancer and backend services. Create a new passthrough Network Load Balancer. Configure a failover group of VMs for the backend.

Answers
D.

Delete the load balancer and backend services. Create a new passthrough Network Load Balancer. Configure a failover group of VMs for the backend.

E.

Validate the health of the backend service. Enable logging for the backend service, and identify the error response in Cloud Logging. Determine the cause of the error by reviewing the statusDetails log field.

Answers
E.

Validate the health of the backend service. Enable logging for the backend service, and identify the error response in Cloud Logging. Determine the cause of the error by reviewing the statusDetails log field.

Suggested answer: B, C

Explanation:

To identify errors with intermittent non-HTTP 200 responses:

Enable and review health check logs for your backend to identify potential issues with backend availability or connectivity (Option B).

Enable logging on the load balancer and review Cloud Logging, particularly the statusDetails field, to gather insights on error types and sources (Option C).

These steps allow for precise error identification by leveraging both health checks and detailed logging features available through Google Cloud's external load balancer diagnostics.

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asked 19/10/2024
Jose Ortuondo Arambalza
42 questions
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