- A
Enable Cloud Armor for the service.
Cloud Armor provides WAF and DDoS protection.
- B
Use Identity-Aware Proxy (IAP) to authenticate users.
IAP provides authentication and authorization.
- C
Run the service in a VPC with firewall rules.
Why wrong: Cloud Run is serverless, no VPC firewall applies directly.
- D
Use a canary deployment strategy.
Why wrong: Canary deployments improve release safety, not security.
- E
Require client-side TLS certificates.
Why wrong: Not supported by Cloud Run.
Question 302 of 1,000
Google PCA Design for security and compliance Practice Question
This PCA practice question tests your understanding of design for security and compliance. 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 TWO practices improve the security of a Cloud Run service?
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
✓
Enable Cloud Armor for the service.
A is correct because Cloud Armor provides web application firewall (WAF) capabilities that protect Cloud Run services from common web attacks like SQL injection and cross-site scripting (XSS). B is correct because Identity-Aware Proxy (IAP) verifies user identity and context before allowing access, enforcing authentication at the Google Cloud edge before requests reach the Cloud Run service.
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.
- ✓
Enable Cloud Armor for the service.
Why this is correct
Cloud Armor provides WAF and DDoS protection.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Use Identity-Aware Proxy (IAP) to authenticate users.
Why this is correct
IAP provides authentication and authorization.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Run the service in a VPC with firewall rules.
Why it's wrong here
Cloud Run is serverless, no VPC firewall applies directly.
- ✗
Use a canary deployment strategy.
Why it's wrong here
Canary deployments improve release safety, not security.
- ✗
Require client-side TLS certificates.
Why it's wrong here
Not supported by Cloud Run.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that VPC firewall rules apply to Cloud Run services directly, but Cloud Run is a serverless product that does not run inside a customer VPC, making firewall rules irrelevant for inbound traffic control.
Detailed technical explanation
How to think about this question
Cloud Armor integrates with the Google Cloud HTTP(S) Load Balancer, which fronts Cloud Run services when using a custom domain, applying WAF rules at the edge before traffic reaches the serverless backend. IAP uses signed headers (X-Goog-Authenticated-User-Email, X-Goog-Authenticated-User-Id) to pass verified identity information to the Cloud Run service, which can then enforce fine-grained access control without managing authentication logic. In practice, combining Cloud Armor and IAP provides defense in depth: Cloud Armor blocks malicious traffic at layer 7, while IAP ensures only authenticated users can reach the service.
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.
TExam Day Tips
- 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
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Design for security and compliance — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this PCA question test?
Design for security and compliance — This question tests Design for security and compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable Cloud Armor for the service. — A is correct because Cloud Armor provides web application firewall (WAF) capabilities that protect Cloud Run services from common web attacks like SQL injection and cross-site scripting (XSS). B is correct because Identity-Aware Proxy (IAP) verifies user identity and context before allowing access, enforcing authentication at the Google Cloud edge before requests reach the Cloud Run service.
What should I do if I get this PCA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jul 4, 2026
This PCA 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 PCA exam.
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