- A
Forecast condition: predict that duration will exceed 2 hours.
Why wrong: Forecast conditions are for predicting future values; not suitable for detecting missing data.
- B
Metric absent condition: with duration of 2 hours on the 'batch_duration' metric.
This triggers if the metric stops reporting for 2 hours, indicating the job did not complete.
- C
Log-based metric alert: count log entries indicating job failure.
Why wrong: While this could work, it requires the job to log failure. The requirement is to detect non-completion, which might include cases where no logs are emitted.
- D
Metric threshold condition: threshold > 7200 (seconds) on the 'batch_duration' metric.
Why wrong: This would only trigger if the job completes but takes too long; it won't detect if the job never completes.
PCDE Implementing Service Monitoring Strategies Practice Question
This PCDE practice question tests your understanding of implementing service monitoring strategies. 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 need to monitor a critical batch job that runs daily on Compute Engine. If the job does not complete within 2 hours, you want to be paged via PagerDuty. The job emits a custom metric 'batch_duration' as a GAUGE that records the duration of the last completed run. What alerting policy condition should you use?
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
Metric absent condition: with duration of 2 hours on the 'batch_duration' metric.
Since the metric only has a value when the job completes, you need to detect the absence of data. If the job fails or doesn't run, the metric will stop reporting. A 'metric absent' condition triggers if no data is received for a specified duration (e.g., 2 hours). This is more reliable than a threshold on the gauge value, which might still show an old value.
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.
- ✗
Forecast condition: predict that duration will exceed 2 hours.
Why it's wrong here
Forecast conditions are for predicting future values; not suitable for detecting missing data.
- ✓
Metric absent condition: with duration of 2 hours on the 'batch_duration' metric.
Why this is correct
This triggers if the metric stops reporting for 2 hours, indicating the job did not complete.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Log-based metric alert: count log entries indicating job failure.
Why it's wrong here
While this could work, it requires the job to log failure. The requirement is to detect non-completion, which might include cases where no logs are emitted.
- ✗
Metric threshold condition: threshold > 7200 (seconds) on the 'batch_duration' metric.
Why it's wrong here
This would only trigger if the job completes but takes too long; it won't detect if the job never completes.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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: Metric absent condition: with duration of 2 hours on the 'batch_duration' metric. — Since the metric only has a value when the job completes, you need to detect the absence of data. If the job fails or doesn't run, the metric will stop reporting. A 'metric absent' condition triggers if no data is received for a specified duration (e.g., 2 hours). This is more reliable than a threshold on the gauge value, which might still show an old value.
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 →
Keep practising
More PCDE practice questions
- A company stores sensor data in BigQuery. They have a table 'sensor_readings' with columns: sensor_id, reading_time, val…
- Which THREE are valid considerations when designing BigQuery tables for BI reporting?
- A company uses Cloud Build to build Docker images. They want to cache intermediate layers to speed up subsequent builds.…
- A company is adopting GitOps for their GKE clusters using Config Sync. They need to meet the following requirements: (1)…
- A team is migrating an on-premises PostgreSQL database to Cloud SQL for PostgreSQL. The existing schema uses a large num…
- A DevOps engineer is setting up Docker credential helper for Artifact Registry on a Cloud Build worker. They want the bu…
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.