GCP Associate Cloud Engineer Practice Question

While investigating a sudden spike in failures, you open Cloud Logging > Logs Explorer. You want to display only the ERROR-level entries that were written by the Cloud Function named payment-handler, regardless of region. Which advanced filter should you enter in the query builder to see exactly those log lines and nothing else?

resource.type="cloud_function" AND resource.labels.function_name="payment-handler" AND severity=ERROR
resource.type="cloud_function" AND resource.labels.function_name="payment-handler" AND severity>=WARNING
resource.type="cloud_function" AND labels.function_name="payment-handler" AND severity="ERROR"
resource.type="cloudfunctions_function" AND resource.labels.name="payment-handler" AND severity=ERROR

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Answer Description

The filter needs three predicates:

resource.type must match Cloud Functions log entries, which use cloud_function.
resource.labels.function_name must match the function's name, payment-handler.
severity must equal ERROR so that only ERROR-level records are returned. Combining the three with AND produces: resource.type="cloud_function" AND resource.labels.function_name="payment-handler" AND severity=ERROR. Using severity>=WARNING also shows WARNING and higher messages. The labels.function_name path is invalid because the label resides under resource.labels, and the resource type cloudfunctions_function is not used by Cloud Functions logs, so those alternatives would not return the intended results.

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