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Answer: The instance is marked unhealthy if it fails to return a 200 OK status within the specified check interval in the health check.
The correct answer is **A**. Health checks in Google Cloud send HTTP, HTTPS, or TCP requests to instances at predefined intervals. An instance is considered unhealthy if it does not respond or fails to return a 200 OK HTTP status within the check interval. **D** is incorrect because Google Cloud Health Checks do not utilize pings (ICMP Echo Request and Reply messages) for health status determination. **C** is incorrect as high CPU usage alone does not classify an instance as unhealthy in the context of health checks. **B** is also incorrect since health checks assess instance responsiveness to requests, not usage metrics.
Author: LeetQuiz Editorial Team
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As a Cloud DevOps Engineer, maintaining the health of instances within a Managed Instance Group (MIG) is part of your responsibilities. You've set up a health check for your MIG. How does the health check system identify an instance as unhealthy?
A
The instance is marked unhealthy if it fails to return a 200 OK status within the specified check interval in the health check.
B
The instance is deemed unhealthy if it remains unused for a certain duration.
C
An instance is considered unhealthy when its CPU utilization exceeds 80%.
D
The instance is identified as unhealthy if it does not reply to a ping.
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