The answer is a single condition with AND logic. This is correct because Cloud Monitoring alerting policies allow you to combine multiple threshold expressions within one condition using AND logic, meaning the alert fires only when both CPU utilization exceeds 80% and the error rate exceeds 5% simultaneously for the full 5-minute duration. On the Google Professional Cloud Developer exam, this tests your understanding of how to implement a multiple condition alerting policy with AND logic in Cloud Monitoring, a common scenario for reducing noise from false positives. A frequent trap is assuming you need separate conditions for each metric, but that would create an OR-based alert, firing if either threshold is met. Instead, remember that a single condition can house multiple thresholds with AND logic, making it the precise tool for requiring all criteria to be met. Memory tip: think of it as a single "gate" that checks all boxes at once—one condition, multiple AND-ed thresholds.
PCD Managing application performance monitoring Practice Question
This PCD practice question tests your understanding of managing application performance monitoring. 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.
A team uses Cloud Monitoring alerting policies with multiple conditions. They want to notify only when both CPU utilization is above 80% and error rate is above 5% for 5 minutes. Which type of condition should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Single condition with AND logic
Option B is correct because Cloud Monitoring alerting policies support a single condition with multiple threshold expressions combined using AND logic. This allows you to trigger a notification only when both CPU utilization exceeds 80% and the error rate exceeds 5% simultaneously for the specified 5-minute duration.
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.
✗
A log-based metric condition
Why it's wrong here
Log-based metrics are for counting logs, not for combining CPU and error rate conditions.
✓
Single condition with AND logic
Why this is correct
You can create one alerting policy with two conditions, and set the combiner to 'AND' so the alert fires only when both conditions are met.
Related concept
Read the scenario before looking for a memorised answer.
✗
Two separate conditions with OR logic
Why it's wrong here
OR logic would fire if either condition is met, which is not the desired behavior.
✗
A condition with a custom predicate
Why it's wrong here
Cloud Monitoring does not support custom predicates; conditions are based on metric thresholds.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the use of multiple conditions with OR logic (which triggers on any single condition) versus a single condition with AND logic (which requires all thresholds to be met), leading them to incorrectly select Option C.
Detailed technical explanation
How to think about this question
Under the hood, Cloud Monitoring alerting policies evaluate each condition's threshold expressions independently. When you use a single condition with multiple thresholds and AND logic, the policy aggregates the time series data and triggers only when all thresholds are breached during the same evaluation window (e.g., 5 minutes). In real-world scenarios, this prevents false alarms from transient spikes in a single metric, such as a brief CPU burst without a corresponding error rate increase.
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 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Managing application performance monitoring — This question tests Managing application performance monitoring — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Single condition with AND logic — Option B is correct because Cloud Monitoring alerting policies support a single condition with multiple threshold expressions combined using AND logic. This allows you to trigger a notification only when both CPU utilization exceeds 80% and the error rate exceeds 5% simultaneously for the specified 5-minute duration.
What should I do if I get this PCD 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.
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Question Discussion
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