Google Professional Cloud DevOps Engineer Question 248
Single answerGoogle Cloud PlatformYour team is experiencing intermittent performance issues with a Cloud Spanner database, and you need to quickly analyze the CPU utilization of the database instances over the last hour. How can you use Metrics Explorer to achieve this?
- A
Navigate to Metrics Explorer, select the 'Cloud Spanner' resource type, and filter by the 'Instance CPU Utilization' metric.
- B
Access Metrics Explorer, select the 'Compute Engine' resource type, and filter by the 'CPU Load' metric.
- C
Use Metrics Explorer to create a custom alert policy for high CPU usage for the database instead of analyzing ad hoc metrics.
- D
Navigate to the Cloud Spanner console and analyze the CPU usage directly without using Metrics Explorer.
Show answer and explanation
Correct answer: A
Explanation
To analyze ad hoc metrics for a Cloud Spanner database, Metrics Explorer is the most appropriate tool. It allows you to select specific resources, such as 'Cloud Spanner', and metrics, such as 'Instance CPU Utilization', to visualize and analyze performance data over a custom time range, such as the last hour. Other options either target the wrong resource type, do not provide ad hoc analysis capabilities, or are less detailed than Metrics Explorer.
- A. Correct.
This is correct. Metrics Explorer allows you to select the relevant resource type ('Cloud Spanner') and metric ('Instance CPU Utilization') to analyze the CPU usage of database instances over a specific time range, such as the last hour.
- B. Incorrect.
This is incorrect. 'Compute Engine' resource type and the 'CPU Load' metric are not relevant when analyzing metrics for Cloud Spanner. This option applies to virtual machine instances, not managed database instances.
- C. Incorrect.
This is incorrect. Creating an alert policy is proactive monitoring, but it doesn’t help you with ad hoc analysis of metrics for past performance issues.
- D. Incorrect.
This is incorrect. While the Cloud Spanner console has some monitoring capabilities, it does not provide the same level of flexibility and granularity as Metrics Explorer for ad hoc analysis.