- A
Use Cloud Logging's Logs Explorer to run a query every minute and use Cloud Scheduler to trigger a Cloud Function that checks the count.
Why wrong: This approach is inefficient, adds latency, and incurs additional costs. Log-based metrics are designed for this purpose.
- B
Create a log-based counter metric in Cloud Logging with the filter jsonPayload.error_code=500, then set up an alerting policy on that metric.
Log-based metrics automatically count matching log entries and export them as a metric to Cloud Monitoring, enabling alerting and dashboards with minimal overhead.
- C
Export logs to BigQuery and run a scheduled query to count error codes, then use the result to trigger an alert via Cloud Monitoring.
Why wrong: This adds complexity and latency; BigQuery is not designed for real-time counting of log entries.
- D
Configure a metric threshold alert directly on the log entries in Cloud Monitoring without creating a metric.
Why wrong: Cloud Monitoring alerts require a metric; log entries themselves are not directly used in alerts without a log-based metric.
PCDE Implementing Service Monitoring Strategies Practice Question
This PCDE practice question tests your understanding of implementing service monitoring strategies. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
An application running on Google Kubernetes Engine (GKE) emits structured logs in JSON format. The DevOps team wants to count the number of log entries that contain a specific error code (e.g., 'error_code': 500) in the last hour and use that count to trigger an alert if it exceeds a threshold. What is the most efficient way to achieve this?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create a log-based counter metric in Cloud Logging with the filter jsonPayload.error_code=500, then set up an alerting policy on that metric.
Creating a log-based metric from the logs is the most efficient approach. You can define a counter metric that increments each time a log entry matches the filter (e.g., jsonPayload.error_code=500). Then you can set up an alerting policy on that metric. This avoids scanning logs in real-time and provides a metric that can be used for dashboards and alerts.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Cloud Logging's Logs Explorer to run a query every minute and use Cloud Scheduler to trigger a Cloud Function that checks the count.
Why it's wrong here
This approach is inefficient, adds latency, and incurs additional costs. Log-based metrics are designed for this purpose.
- ✓
Create a log-based counter metric in Cloud Logging with the filter jsonPayload.error_code=500, then set up an alerting policy on that metric.
Why this is correct
Log-based metrics automatically count matching log entries and export them as a metric to Cloud Monitoring, enabling alerting and dashboards with minimal overhead.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Export logs to BigQuery and run a scheduled query to count error codes, then use the result to trigger an alert via Cloud Monitoring.
Why it's wrong here
This adds complexity and latency; BigQuery is not designed for real-time counting of log entries.
- ✗
Configure a metric threshold alert directly on the log entries in Cloud Monitoring without creating a metric.
Why it's wrong here
Cloud Monitoring alerts require a metric; log entries themselves are not directly used in alerts without a log-based metric.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which PCDE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
Implementing Service Monitoring Strategies — study guide chapter
Learn the concepts, then practise the questions
- →
Implementing Service Monitoring Strategies practice questions
Targeted practice on this topic area only
- →
All PCDE questions
1,000 questions across all exam domains
- →
Google Professional Cloud Database Engineer study guide
Full concept coverage aligned to exam objectives
- →
PCDE practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related PCDE practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Building and Implementing CI/CD Pipelines for a Service practice questions
Practise PCDE questions linked to Building and Implementing CI/CD Pipelines for a Service.
Bootstrapping a Google Cloud Organisation for DevOps practice questions
Practise PCDE questions linked to Bootstrapping a Google Cloud Organisation for DevOps.
Applying Site Reliability Engineering Practices to a Service practice questions
Practise PCDE questions linked to Applying Site Reliability Engineering Practices to a Service.
Implementing Service Monitoring Strategies practice questions
Practise PCDE questions linked to Implementing Service Monitoring Strategies.
Optimising Service Performance practice questions
Practise PCDE questions linked to Optimising Service Performance.
Plan and manage database infrastructure practice questions
Practise PCDE questions linked to Plan and manage database infrastructure.
Define data structures and implement SQL for Business Intelligence practice questions
Practise PCDE questions linked to Define data structures and implement SQL for Business Intelligence.
Design and implement database schemas practice questions
Practise PCDE questions linked to Design and implement database schemas.
Monitor and optimize database performance practice questions
Practise PCDE questions linked to Monitor and optimize database performance.
PCDE fundamentals practice questions
Practise PCDE questions linked to PCDE fundamentals.
PCDE scenario practice questions
Practise PCDE questions linked to PCDE scenario.
PCDE troubleshooting practice questions
Practise PCDE questions linked to PCDE troubleshooting.
Practice this exam
Start a free PCDE practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this PCDE question test?
Implementing Service Monitoring Strategies — This question tests Implementing Service Monitoring Strategies — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a log-based counter metric in Cloud Logging with the filter jsonPayload.error_code=500, then set up an alerting policy on that metric. — Creating a log-based metric from the logs is the most efficient approach. You can define a counter metric that increments each time a log entry matches the filter (e.g., jsonPayload.error_code=500). Then you can set up an alerting policy on that metric. This avoids scanning logs in real-time and provides a metric that can be used for dashboards and alerts.
What should I do if I get this PCDE question wrong?
Identify which PCDE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jul 4, 2026
This PCDE 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 PCDE exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.