- A
Use an organization policy constraint 'compute.vmExternalIpAccess' at the organization level
This constraint restricts external IP usage on VMs; it can be set at organization or folder level.
- B
Apply a deny IAM policy to each project individually
Why wrong: Deny policies are per project, not inherited, so they would need to be applied individually, which is inconsistent.
- C
Set a quota for external IP addresses per project
Why wrong: Quotas limit the number of external IPs but do not enforce a blanket restriction; they can be bypassed by requesting increases.
- D
Use network tags to block external IPs
Why wrong: Network tags are used for firewall rules, not for enforcing external IP restrictions.
- E
Define IAM policies at the organization level
IAM policies at the organization node are inherited by all child resources.
Cloud Digital Leader How Google Cloud Resources Are Managed Practice Question
This GCDL practice question tests your understanding of how google cloud resources are managed. 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 organization wants to ensure that all projects in their GCP organization have consistent IAM policies. They also need to restrict the use of external IP addresses on Compute Engine instances for security. Which TWO tools should they use? (Choose TWO.)
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 constraint 'compute.vmExternalIpAccess' at the organization level
Organization policies can enforce restrictions like disabling external IP addresses across the entire organization. IAM policies at the organization level can set baseline access controls inherited by all projects.
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.
- ✓
Use an organization policy constraint 'compute.vmExternalIpAccess' at the organization level
Why this is correct
This constraint restricts external IP usage on VMs; it can be set at organization or folder level.
Related concept
Standard ACLs match source addresses.
- ✗
Apply a deny IAM policy to each project individually
Why it's wrong here
Deny policies are per project, not inherited, so they would need to be applied individually, which is inconsistent.
- ✗
Set a quota for external IP addresses per project
Why it's wrong here
Quotas limit the number of external IPs but do not enforce a blanket restriction; they can be bypassed by requesting increases.
- ✗
Use network tags to block external IPs
Why it's wrong here
Network tags are used for firewall rules, not for enforcing external IP restrictions.
- ✓
Define IAM policies at the organization level
Why this is correct
IAM policies at the organization node are inherited by all child resources.
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 GCDL ACL questions on filtering logic and placement.
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How Google Cloud Resources Are Managed — study guide chapter
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FAQ
Questions learners often ask
What does this GCDL question test?
How Google Cloud Resources Are Managed — This question tests How Google Cloud Resources Are Managed — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Use an organization policy constraint 'compute.vmExternalIpAccess' at the organization level — Organization policies can enforce restrictions like disabling external IP addresses across the entire organization. IAM policies at the organization level can set baseline access controls inherited by all projects.
What should I do if I get this GCDL 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 GCDL 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
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