This PCDOE practice question tests your understanding of managing service incidents. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
You are debugging a production issue where a Cloud Function occasionally throws a 'memory limit exceeded' error. You want to inspect the memory usage at the time of the error. What should you do?
Check Cloud Logging for memory metrics.
Why wrong: Logging does not automatically capture detailed memory usage.
Use Cloud Trace to trace the invocations.
Why wrong: Trace provides latency data, not memory profiles.
Use Cloud Debugger to set a breakpoint.
Why wrong: Debugger inspects code state, not memory usage over time.
Enable Cloud Profiler and analyze the snapshot.
Profiler provides memory and CPU profiling snapshots.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Enable Cloud Profiler and analyze the snapshot.
Option D is correct because Cloud Profiler provides continuous, low-overhead profiling of CPU and memory usage, and its snapshot analysis can pinpoint memory allocation patterns at the time of a memory limit exceeded error. Unlike other tools, Profiler captures the call stack and memory consumption per function invocation, enabling you to identify the specific code path causing the spike.
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.
Check Cloud Logging for memory metrics.
Why it's wrong here
Logging does not automatically capture detailed memory usage.
Use Cloud Trace to trace the invocations.
Why it's wrong here
Trace provides latency data, not memory profiles.
Use Cloud Debugger to set a breakpoint.
Why it's wrong here
Debugger inspects code state, not memory usage over time.
Enable Cloud Profiler and analyze the snapshot.
Why this is correct
Profiler provides memory and CPU profiling snapshots.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Google Cloud often tests the distinction between monitoring (logging/tracing) and profiling, leading candidates to choose Cloud Logging or Cloud Trace because they are more familiar, while the correct answer requires a tool specifically designed for memory analysis.
Detailed technical explanation
Cloud Profiler uses statistical sampling to collect stack traces and memory allocation data with minimal overhead (typically <5% CPU). It integrates with the Cloud Functions runtime via the `google-cloud-profiler` agent, which hooks into the V8 engine's garbage collector to track heap usage. In production, a memory leak might only manifest under high concurrency, and Profiler's ability to correlate memory snapshots with specific function invocations helps distinguish between a one-time spike and a gradual leak.
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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Managing service incidents — This question tests Managing service incidents — Read the scenario before looking for a memorised answer..
The correct answer is: Enable Cloud Profiler and analyze the snapshot. — Option D is correct because Cloud Profiler provides continuous, low-overhead profiling of CPU and memory usage, and its snapshot analysis can pinpoint memory allocation patterns at the time of a memory limit exceeded error. Unlike other tools, Profiler captures the call stack and memory consumption per function invocation, enabling you to identify the specific code path causing the spike.
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
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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