This PCDOE practice question tests your understanding of implementing service monitoring strategies. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A DevOps engineer needs to verify if a load balancer's health check is behaving normally by examining historical trends. Where should they look?
Cloud Monitoring Metrics Explorer
Metrics Explorer stores health check metrics for historical analysis.
Cloud Logging
Why wrong: Logs are not the primary source for time-series metrics.
Cloud Console health check page
Why wrong: Shows current status, not historical trends.
Cloud Load Balancing logs
Why wrong: These logs contain request logs, not health check metrics.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Cloud Monitoring Metrics Explorer
Cloud Monitoring Metrics Explorer is the correct place to examine historical trends of a load balancer's health check because it provides time-series metrics such as `https/backend_request_count`, `https/backend_latencies`, and health check probe success/failure counts. These metrics can be queried over custom time ranges and aggregated to detect anomalies or degradation patterns, which is exactly what the question asks for — verifying historical trends of health check behavior.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Cloud Monitoring Metrics Explorer
Why this is correct
Metrics Explorer stores health check metrics for historical analysis.
Related concept
Read the scenario before looking for a memorised answer.
Cloud Logging
Why it's wrong here
Logs are not the primary source for time-series metrics.
Cloud Console health check page
Why it's wrong here
Shows current status, not historical trends.
Cloud Load Balancing logs
Why it's wrong here
These logs contain request logs, not health check metrics.
Common exam traps
The trap here is that candidates confuse Cloud Logging (which shows raw events) with Cloud Monitoring Metrics (which shows aggregated trends), leading them to choose Cloud Logging or the health check page when the question explicitly asks for historical trends.
Trap categories for this question
Command / output trap
Shows current status, not historical trends.
Detailed technical explanation
Under the hood, Cloud Monitoring Metrics Explorer queries the `monitoring.googleapis.com` API to retrieve metric time series from the `loadbalancing.googleapis.com` namespace, including `https/backend_health_check_latency` and `https/backend_health_check_count`. These metrics are collected at 60-second intervals by default and can be used to set up alerting policies based on sliding windows, such as a sudden increase in health check failures indicating a backend zone issue. In a real-world scenario, a DevOps engineer might use Metrics Explorer to correlate a spike in health check latency with a deployment rollout, enabling proactive rollback before user impact.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
Implementing service monitoring strategies — This question tests Implementing service monitoring strategies — Read the scenario before looking for a memorised answer..
The correct answer is: Cloud Monitoring Metrics Explorer — Cloud Monitoring Metrics Explorer is the correct place to examine historical trends of a load balancer's health check because it provides time-series metrics such as `https/backend_request_count`, `https/backend_latencies`, and health check probe success/failure counts. These metrics can be queried over custom time ranges and aggregated to detect anomalies or degradation patterns, which is exactly what the question asks for — verifying historical trends of health check behavior.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This PCDOE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCDOE exam.
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