Cloud Digital Leader Scaling with Google Cloud operations Practice Question
This GCDL practice question tests your understanding of scaling with google cloud operations. 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.
An application deployed on Cloud Run is experiencing increased latency. The team suspects it's not scaling quickly enough. They have set a maxScale of 10 and minScale of 0. What should they adjust to reduce cold start latency?
Why wrong: Lower concurrency means each instance handles fewer concurrent requests, potentially increasing the number of instances needed, but not directly reducing cold start latency.
B
Set minScale to 1 to keep at least one instance warm.
A minimum of 1 ensures an instance is always running, eliminating cold starts for traffic that stays within capacity.
C
Increase CPU limit.
Why wrong: CPU limit affects per-instance performance, not scaling latency; it does not influence cold starts.
D
Increase maxScale to 20.
Why wrong: Increasing maxScale allows more instances but does not reduce cold start latency; it only raises the ceiling.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set minScale to 1 to keep at least one instance warm.
Option B is correct because setting a minScale greater than 0 keeps instances warm, reducing cold starts. Option A increases only the upper limit, which doesn't affect cold starts. Option C decreases concurrency, which may degrade throughput. Option D increases CPU per instance, not scaling behavior.
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.
✗
Decrease container concurrency.
Why it's wrong here
Lower concurrency means each instance handles fewer concurrent requests, potentially increasing the number of instances needed, but not directly reducing cold start latency.
✓
Set minScale to 1 to keep at least one instance warm.
Why this is correct
A minimum of 1 ensures an instance is always running, eliminating cold starts for traffic that stays within capacity.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase CPU limit.
Why it's wrong here
CPU limit affects per-instance performance, not scaling latency; it does not influence cold starts.
✗
Increase maxScale to 20.
Why it's wrong here
Increasing maxScale allows more instances but does not reduce cold start latency; it only raises the ceiling.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this GCDL question in full detail.
Identify which GCDL 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.
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: Set minScale to 1 to keep at least one instance warm. — Option B is correct because setting a minScale greater than 0 keeps instances warm, reducing cold starts. Option A increases only the upper limit, which doesn't affect cold starts. Option C decreases concurrency, which may degrade throughput. Option D increases CPU per instance, not scaling behavior.
What should I do if I get this GCDL question wrong?
Identify which GCDL 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.
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Question Discussion
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