- A
They can be used to restrict access to specific Google APIs
Why wrong: API access control is done via VPC Service Controls, not firewall policies.
- B
They can be applied at the organization, folder, or project level
Hierarchical policies can be attached at any level in the hierarchy.
- C
They are automatically inherited by all resources below the attachment point
Policies are inherited by child resources.
- D
They override network firewall rules with the same priority
Why wrong: Hierarchical rules are evaluated before network rules, but they do not override; they are evaluated separately.
- E
They support both allow and deny rules
Hierarchical policies can define both allow and deny actions.
Question 427 of 1,000
PCNE Implementing VPC Instances Practice Question
This PCNE practice question tests your understanding of implementing vpc instances. 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.
Which THREE of the following are benefits of using hierarchical firewall policies? (Select 3)
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
✓
They can be applied at the organization, folder, or project level
Hierarchical firewall policies provide centralized management, inherit down the resource hierarchy, and can apply at the organization level. They support both allow and deny rules, and can be used to enforce baseline security.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
They can be used to restrict access to specific Google APIs
Why it's wrong here
API access control is done via VPC Service Controls, not firewall policies.
- ✓
They can be applied at the organization, folder, or project level
Why this is correct
Hierarchical policies can be attached at any level in the hierarchy.
Related concept
Standard ACLs match source addresses.
- ✓
They are automatically inherited by all resources below the attachment point
Why this is correct
Policies are inherited by child resources.
Related concept
Standard ACLs match source addresses.
- ✗
They override network firewall rules with the same priority
Why it's wrong here
Hierarchical rules are evaluated before network rules, but they do not override; they are evaluated separately.
- ✓
They support both allow and deny rules
Why this is correct
Hierarchical policies can define both allow and deny actions.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCNE ACL questions on filtering logic and placement.
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Implementing VPC Instances — study guide chapter
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FAQ
Questions learners often ask
What does this PCNE question test?
Implementing VPC Instances — This question tests Implementing VPC Instances — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: They can be applied at the organization, folder, or project level — Hierarchical firewall policies provide centralized management, inherit down the resource hierarchy, and can apply at the organization level. They support both allow and deny rules, and can be used to enforce baseline security.
What should I do if I get this PCNE question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCNE ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Last reviewed: Jul 4, 2026
This PCNE 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 PCNE exam.
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