- A
Create a security policy with a geo-match condition for the region.
The geo-match condition specifies the geographic region to block or allow.
- B
Enable Cloud CDN and set geo-restrictions.
Why wrong: Cloud CDN geo-restrictions control cache serving, not request blocking.
- C
Attach the security policy to the backend service.
The policy must be attached to the backend service (or load balancer) to take effect.
- D
Configure the load balancer to use a custom header for geo-blocking.
Why wrong: Cloud Armor uses geo-match conditions, not custom headers, for geographic blocking.
- E
Add a rule in the security policy with deny action and priority lower than the default.
Why wrong: The deny rule should have a higher priority (lower number) than the default allow rule to override it.
Quick Answer
The answer is to create a security policy with a geo-match condition and attach that policy to the backend service. Cloud Armor uses geo-match rules within a security policy to evaluate the geographic origin of incoming requests against a specified region, and the policy must be explicitly attached to the backend service of your HTTP(S) load balancer to enforce those rules. On the Google Professional Cloud Security Engineer exam, this tests your understanding of how Cloud Armor integrates with load balancing components; a common trap is confusing the priority of deny rules—remember that a deny rule must have a lower priority number (higher precedence) than the default allow rule to actually block traffic. Another frequent mistake is thinking Cloud CDN geo-restrictions can replace Cloud Armor, but those only affect caching behavior, not request blocking. For a quick memory tip: think “Geo + Attach” — you need the geographic condition in the policy and you must attach it to the backend service, not the load balancer itself.
PCSE Practice Question: Managing operations in a cloud solution environment
This PCSE practice question tests your understanding of managing operations in a cloud solution environment. 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.
A company uses Cloud Armor to protect their HTTP(S) load balancer. They want to block requests from a specific geographic region. Which TWO actions should they take? (Choose 2)
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
Create a security policy with a geo-match condition for the region.
Options A and B are correct. To block requests by geography in Cloud Armor, you create a security policy with a geo-match condition (A) and then attach that policy to the backend service (B). Option C is incorrect because the deny rule should have a higher priority (lower number) than the default rule, not lower. Option D is unnecessary. Option E is incorrect because Cloud CDN geo-restrictions affect caching, not request blocking.
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.
- ✓
Create a security policy with a geo-match condition for the region.
Why this is correct
The geo-match condition specifies the geographic region to block or allow.
Related concept
Standard ACLs match source addresses.
- ✗
Enable Cloud CDN and set geo-restrictions.
Why it's wrong here
Cloud CDN geo-restrictions control cache serving, not request blocking.
- ✓
Attach the security policy to the backend service.
Why this is correct
The policy must be attached to the backend service (or load balancer) to take effect.
Related concept
Standard ACLs match source addresses.
- ✗
Configure the load balancer to use a custom header for geo-blocking.
Why it's wrong here
Cloud Armor uses geo-match conditions, not custom headers, for geographic blocking.
- ✗
Add a rule in the security policy with deny action and priority lower than the default.
Why it's wrong here
The deny rule should have a higher priority (lower number) than the default allow rule to override it.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. 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. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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 PCSE ACL questions on filtering logic and placement.
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FAQ
Questions learners often ask
What does this PCSE question test?
Managing operations in a cloud solution environment — This question tests Managing operations in a cloud solution environment — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Create a security policy with a geo-match condition for the region. — Options A and B are correct. To block requests by geography in Cloud Armor, you create a security policy with a geo-match condition (A) and then attach that policy to the backend service (B). Option C is incorrect because the deny rule should have a higher priority (lower number) than the default rule, not lower. Option D is unnecessary. Option E is incorrect because Cloud CDN geo-restrictions affect caching, not request blocking.
What should I do if I get this PCSE 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 PCSE 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: Jun 24, 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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