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.
Your team is implementing SLO monitoring. Which TWO tools should they use to create and monitor SLIs?
Error Reporting
Why wrong: Error Reporting aggregates errors but does not define SLIs.
Cloud Monitoring
Cloud Monitoring is the primary tool for creating metric-based SLIs and SLOs.
Cloud Logging
Log-based metrics from Cloud Logging can serve as SLIs for SLOs.
Cloud Trace
Why wrong: Cloud Trace provides latency data but is not used to define SLIs directly.
Cloud Profiler
Why wrong: Cloud Profiler is for performance profiling, not SLOs.
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
Cloud Monitoring (option B) is the correct tool for creating and monitoring Service Level Indicators (SLIs) because it allows you to define custom metrics, set up alerting policies, and create dashboards to track the performance of your services. Cloud Logging (option C) is also correct because SLIs often rely on log-based metrics, such as request latency or error counts, which are extracted from log entries using log-based metrics in Cloud Logging. Together, these two tools provide the data ingestion and monitoring capabilities needed to define and observe SLIs.
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.
Error Reporting
Why it's wrong here
Error Reporting aggregates errors but does not define SLIs.
Cloud Monitoring
Why this is correct
Cloud Monitoring is the primary tool for creating metric-based SLIs and SLOs.
Related concept
Read the scenario before looking for a memorised answer.
Cloud Logging
Why this is correct
Log-based metrics from Cloud Logging can serve as SLIs for SLOs.
Related concept
Read the scenario before looking for a memorised answer.
Cloud Trace
Why it's wrong here
Cloud Trace provides latency data but is not used to define SLIs directly.
Cloud Profiler
Why it's wrong here
Cloud Profiler is for performance profiling, not SLOs.
Common exam traps
Google Cloud often tests the distinction between tools that collect raw data (like Cloud Logging) and tools that aggregate and alert on that data (like Cloud Monitoring), and the trap here is that candidates might think Error Reporting or Cloud Trace are sufficient for SLI monitoring, when they lack the metric aggregation and alerting capabilities required for SLO monitoring.
Detailed technical explanation
SLIs are typically defined as ratios of good events to total events (e.g., request latency < 200ms / total requests), and Cloud Monitoring uses MetricThreshold conditions in alerting policies to evaluate these ratios over time windows. Cloud Logging's log-based metrics allow you to extract custom metrics from structured logs (e.g., using regex or JSON parsing) and export them to Cloud Monitoring, enabling SLIs like '99.9% of requests complete in under 500ms' to be tracked. In practice, you might use Cloud Logging to count error logs (e.g., HTTP 5xx responses) and Cloud Monitoring to compute the error rate as an SLI, then set an alert if it exceeds a threshold.
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 — Cloud Monitoring (option B) is the correct tool for creating and monitoring Service Level Indicators (SLIs) because it allows you to define custom metrics, set up alerting policies, and create dashboards to track the performance of your services. Cloud Logging (option C) is also correct because SLIs often rely on log-based metrics, such as request latency or error counts, which are extracted from log entries using log-based metrics in Cloud Logging. Together, these two tools provide the data ingestion and monitoring capabilities needed to define and observe SLIs.
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 30, 2026
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