- A
Use an organization policy with a list constraint to require a specific tag on Compute Engine instances.
Organization policy constraints such as `compute.requireTags` (or custom constraint) can enforce that resources have specific tags.
- B
Create a Cloud Audit Logs sink and trigger a Cloud Function to delete instances without the tag.
Why wrong: This is reactive and not preventative; instances would be created before being deleted.
- C
Use a hierarchical firewall policy with a tag condition.
Why wrong: Firewall policies control traffic, not instance creation.
- D
Create an organization policy with constraint `compute.requireOsLogin` set to true.
Why wrong: This enforces OS Login, not tags on instances.
Question 742 of 985
PCSE Configuring Network Security Practice Question
This PCSE practice question tests your understanding of configuring network security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 organization wants to enforce that all Compute Engine instances in a project have a specific tag (e.g., 'env=prod') before they can be created. Which approach should be used?
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
✓
Use an organization policy with a list constraint to require a specific tag on Compute Engine instances.
Use Organization Policy with a constraint that requires tags on resources. The constraint `compute.requireOsLogin` is not related. Resource Manager tags can be enforced via Organization Policy using the `constraints/tags` constraint.
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.
- ✓
Use an organization policy with a list constraint to require a specific tag on Compute Engine instances.
Why this is correct
Organization policy constraints such as `compute.requireTags` (or custom constraint) can enforce that resources have specific tags.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a Cloud Audit Logs sink and trigger a Cloud Function to delete instances without the tag.
Why it's wrong here
This is reactive and not preventative; instances would be created before being deleted.
- ✗
Use a hierarchical firewall policy with a tag condition.
Why it's wrong here
Firewall policies control traffic, not instance creation.
- ✗
Create an organization policy with constraint `compute.requireOsLogin` set to true.
Why it's wrong here
This enforces OS Login, not tags on instances.
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.
What to study next
Got this wrong? Here's your next step.
Identify which PCSE 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.
- →
Configuring Network Security — study guide chapter
Learn the concepts, then practise the questions
- →
Configuring Network Security practice questions
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FAQ
Questions learners often ask
What does this PCSE question test?
Configuring Network Security — This question tests Configuring Network Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use an organization policy with a list constraint to require a specific tag on Compute Engine instances. — Use Organization Policy with a constraint that requires tags on resources. The constraint `compute.requireOsLogin` is not related. Resource Manager tags can be enforced via Organization Policy using the `constraints/tags` constraint.
What should I do if I get this PCSE question wrong?
Identify which PCSE 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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Last reviewed: Jul 4, 2026
This PCSE 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 PCSE exam.
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