This PDE practice question tests your understanding of ensuring solution quality. 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.
Refer to the exhibit. A team configured a Cloud Monitoring alerting policy as shown. They recently started receiving false positive alerts. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
The duration of 60 seconds is too short, making the alert sensitive to brief spikes.
A short duration means a spike lasting just over 60 seconds will trigger an alert; a longer duration (e.g., 300s) would reduce sensitivity.
B
The alignment period of 60 seconds is too short, causing noise.
Why wrong: A shorter alignment period provides finer granularity but does not itself cause false positives; it's the duration that matters.
C
The threshold of 10 is too low.
Why wrong: If the typical error rate is lower, a threshold of 10 may be fine; the issue is the window length.
D
The aggregator should be ALIGN_SUM instead of ALIGN_RATE.
Why wrong: For an error rate, ALIGN_RATE is appropriate; ALIGN_SUM would give absolute counts, which may also work but not the cause of false positives.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The duration of 60 seconds is too short, making the alert sensitive to brief spikes.
A 60-second duration means the alert fires if the condition is met for just one minute. This is too short to distinguish transient spikes from sustained issues, causing false positives. Increasing the duration would require the metric to breach the threshold for a longer, more meaningful period.
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.
✓
The duration of 60 seconds is too short, making the alert sensitive to brief spikes.
Why this is correct
A short duration means a spike lasting just over 60 seconds will trigger an alert; a longer duration (e.g., 300s) would reduce sensitivity.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The alignment period of 60 seconds is too short, causing noise.
Why it's wrong here
A shorter alignment period provides finer granularity but does not itself cause false positives; it's the duration that matters.
✗
The threshold of 10 is too low.
Why it's wrong here
If the typical error rate is lower, a threshold of 10 may be fine; the issue is the window length.
✗
The aggregator should be ALIGN_SUM instead of ALIGN_RATE.
Why it's wrong here
For an error rate, ALIGN_RATE is appropriate; ALIGN_SUM would give absolute counts, which may also work but not the cause of false positives.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google often tests the distinction between alignment period (how data is aggregated) and duration (how long the condition must persist), tempting candidates to blame the alignment period when the real issue is the insufficient duration.
Detailed technical explanation
How to think about this question
In Cloud Monitoring, the duration parameter controls how long a metric must violate the threshold before the alert fires. A duration of 60 seconds with a 60-second alignment period means the alert evaluates each aligned window; if a single window breaches the threshold, the alert triggers immediately. For metrics with natural short-term variance (e.g., CPU utilization bursts), this leads to false positives. Best practice is to set duration to at least 2–3 alignment periods to filter out noise.
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.
Ensuring solution quality — This question tests Ensuring solution quality — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The duration of 60 seconds is too short, making the alert sensitive to brief spikes. — A 60-second duration means the alert fires if the condition is met for just one minute. This is too short to distinguish transient spikes from sustained issues, causing false positives. Increasing the duration would require the metric to breach the threshold for a longer, more meaningful period.
What should I do if I get this PDE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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