Cloud Digital Leader Scaling with Google Cloud operations Practice Question
This GCDL practice question tests your understanding of scaling with google cloud operations. 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. An operations team configured this Cloud Monitoring alert. They notice that the alert fires, but the associated managed instance group autoscaler does not scale up. What is the most likely reason?
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 300 seconds (5 minutes) is too long, and the autoscaler uses a shorter evaluation period.
Autoscaler evaluates metrics over a short window (e.g., 1 minute); a 5-minute sustained threshold in the alert may cause the autoscaler to react differently.
B
The threshold value of 0.8 is too low.
Why wrong: A threshold of 0.8 (80%) is a typical target for autoscaling; lower threshold would trigger sooner, not prevent scaling.
C
The alignment period of 60 seconds is too short, causing unstable metrics.
Why wrong: An alignment period of 60 seconds is standard and should not cause instability.
D
The filter is missing the project ID, so it applies to all projects.
Why wrong: The filter specifies resource type and metric; it implicitly applies to the current scope, and missing project ID does not prevent proper evaluation.
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 300 seconds (5 minutes) is too long, and the autoscaler uses a shorter evaluation period.
Option A is correct because the autoscaler evaluates metrics over a shorter period than the alert's 300-second duration. The alert fires only after the condition persists for 5 minutes, but the autoscaler may have already scaled down or the metric may have recovered before the alert triggers, causing a mismatch between the alert and the autoscaler's decision logic.
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 300 seconds (5 minutes) is too long, and the autoscaler uses a shorter evaluation period.
Why this is correct
Autoscaler evaluates metrics over a short window (e.g., 1 minute); a 5-minute sustained threshold in the alert may cause the autoscaler to react differently.
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 threshold value of 0.8 is too low.
Why it's wrong here
A threshold of 0.8 (80%) is a typical target for autoscaling; lower threshold would trigger sooner, not prevent scaling.
✗
The alignment period of 60 seconds is too short, causing unstable metrics.
Why it's wrong here
An alignment period of 60 seconds is standard and should not cause instability.
✗
The filter is missing the project ID, so it applies to all projects.
Why it's wrong here
The filter specifies resource type and metric; it implicitly applies to the current scope, and missing project ID does not prevent proper evaluation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that a longer alert duration is always better for stability, but here the trap is that the autoscaler's evaluation period is shorter, causing the alert to fire too late for the autoscaler to act.
Detailed technical explanation
How to think about this question
The autoscaler uses a sliding window of metrics (typically 60 seconds) to make scaling decisions, while the alert's duration of 300 seconds means the alert fires only after a sustained breach. This mismatch can cause the autoscaler to react to short-term spikes that the alert ignores, or the alert to fire after the autoscaler has already scaled. In practice, this is a common pitfall when using alerts to trigger autoscaling, as the alert's evaluation period must be shorter than or equal to the autoscaler's cooldown period to avoid delayed reactions.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this GCDL question in full detail.
Scaling with Google Cloud operations — This question tests Scaling with Google Cloud operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The duration of 300 seconds (5 minutes) is too long, and the autoscaler uses a shorter evaluation period. — Option A is correct because the autoscaler evaluates metrics over a shorter period than the alert's 300-second duration. The alert fires only after the condition persists for 5 minutes, but the autoscaler may have already scaled down or the metric may have recovered before the alert triggers, causing a mismatch between the alert and the autoscaler's decision logic.
What should I do if I get this GCDL 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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