- A
Two separate alerting policies — one for latency and one for error rate — each with their own notification channel.
Why wrong: This works but creates two separate alert incidents. A single policy with OR conditions is cleaner and fires a single notification covering both conditions.
- B
A single alerting policy with two conditions (p99 latency and error rate) joined with OR logic.
Cloud Monitoring alerting policies support multi-condition policies with AND/OR combiners. A single OR-combined policy fires when either condition breaches its threshold.
- C
A log-based alert using Cloud Logging to detect 5xx response codes in access logs.
Why wrong: Log-based alerts can detect error patterns but don't calculate percentile latency or compute error rate ratios. They're less precise for SLO-style alerting.
- D
An SLO with error budget burn rate alerts configured in Cloud Monitoring.
Why wrong: SLO burn rate alerts measure how fast error budget is consumed — useful for SRE practice, but more complex than the simple threshold alert described. The question asks for a specific two-condition alert.
Quick Answer
The answer is a single alerting policy with two conditions joined by OR logic. This is correct because Cloud Monitoring natively supports combining multiple conditions within one policy using AND or OR operators, allowing you to fire a single alert when either the 99th percentile latency exceeds 2 seconds or the error rate surpasses 1% over a 5-minute window—exactly matching the requirement without needing separate policies or log-based detection. On the Google Associate Cloud Engineer exam, this tests your understanding of alerting policy structure and condition logic, a common trap being the impulse to create two separate policies or to use log-based metrics when OpenTelemetry metrics are already available. Remember that Cloud Monitoring’s condition builder lets you add multiple metric thresholds and toggle the logic between AND and OR, so always check the “combine conditions” dropdown. A useful memory tip: “One policy, two conditions, OR means either one triggers the alarm.”
Google ACE Practice Question: Ensuring successful operation of a cloud solution
This ACE practice question tests your understanding of ensuring successful operation of a cloud solution. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 application running on GKE is experiencing intermittent 500 errors. You want to create an alert that fires when the 99th percentile latency exceeds 2 seconds OR when the error rate (5xx responses) exceeds 1% of all requests over a 5-minute window. You have Cloud Monitoring configured with the application exporting metrics via OpenTelemetry. What should you create in Cloud Monitoring?
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
A single alerting policy with two conditions (p99 latency and error rate) joined with OR logic.
Option B is correct because Cloud Monitoring alerting policies support multiple conditions combined with AND/OR logic, allowing you to trigger a single alert when either the 99th percentile latency exceeds 2 seconds or the error rate exceeds 1% over a 5-minute window. This directly matches the requirement without needing separate policies or relying on log-based detection.
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.
- ✗
Two separate alerting policies — one for latency and one for error rate — each with their own notification channel.
Why it's wrong here
This works but creates two separate alert incidents. A single policy with OR conditions is cleaner and fires a single notification covering both conditions.
- ✓
A single alerting policy with two conditions (p99 latency and error rate) joined with OR logic.
Why this is correct
Cloud Monitoring alerting policies support multi-condition policies with AND/OR combiners. A single OR-combined policy fires when either condition breaches its threshold.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A log-based alert using Cloud Logging to detect 5xx response codes in access logs.
Why it's wrong here
Log-based alerts can detect error patterns but don't calculate percentile latency or compute error rate ratios. They're less precise for SLO-style alerting.
- ✗
An SLO with error budget burn rate alerts configured in Cloud Monitoring.
Why it's wrong here
SLO burn rate alerts measure how fast error budget is consumed — useful for SRE practice, but more complex than the simple threshold alert described. The question asks for a specific two-condition alert.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the distinction between metric-based alerts and log-based alerts, and the trap here is that candidates may choose a log-based alert (Option C) because they associate error detection with logs, but the question explicitly states metrics are exported via OpenTelemetry, making metric-based alerts the correct and more efficient choice.
Detailed technical explanation
How to think about this question
Cloud Monitoring alerting policies evaluate conditions using Metric Threshold or Metric Absence, and when multiple conditions are combined with OR logic, the policy fires if any condition is met during the evaluation window. OpenTelemetry metrics are typically exported as custom metrics or via the Prometheus receiver, which Cloud Monitoring can ingest and alert on using the same metric descriptors. A real-world scenario where this matters is a microservices application where a sudden latency spike or error burst should trigger immediate investigation, but an SLO burn rate alert might not fire until the error budget is significantly depleted.
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.
TExam Day Tips
- 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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this ACE question test?
Ensuring successful operation of a cloud solution — This question tests Ensuring successful operation of a cloud solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A single alerting policy with two conditions (p99 latency and error rate) joined with OR logic. — Option B is correct because Cloud Monitoring alerting policies support multiple conditions combined with AND/OR logic, allowing you to trigger a single alert when either the 99th percentile latency exceeds 2 seconds or the error rate exceeds 1% over a 5-minute window. This directly matches the requirement without needing separate policies or relying on log-based detection.
What should I do if I get this ACE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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: Jun 30, 2026
This ACE 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 ACE exam.
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