Google PCA Manage implementation of cloud architecture Practice Question
This PCA practice question tests your understanding of manage implementation of cloud architecture. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 is using Cloud Armor with HTTP Load Balancing to protect a web application. They want to block traffic from specific IP ranges for all requests except those that include a valid reCAPTCHA token. Which Cloud Armor rule configuration should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a deny rule for the IP ranges with a condition that the request does not contain a valid reCAPTCHA token.
Option C is correct because Cloud Armor security rules support boolean conditions using operators like `request.path` or custom headers. By creating a deny rule for the specific IP ranges with a condition that the request does not contain a valid reCAPTCHA token (evaluated via the `hasRecaptchaToken()` function), you allow traffic from those IPs only when the token is present. This directly implements the requirement without affecting other traffic.
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 a rate-based rule to limit requests from those IP ranges and add a reCAPTCHA action.
Why it's wrong here
Rate-based does not block all requests.
✗
Create a whitelist rule for the IP ranges and attach it as a deny rule with higher priority.
Why it's wrong here
Whitelist allows all from that IP; need to block unless token.
✓
Create a deny rule for the IP ranges with a condition that the request does not contain a valid reCAPTCHA token.
Why this is correct
Deny unless token present; token evaluation via Cloud Armor rules.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Identity-Aware Proxy (IAP) to block the IPs and reCAPTCHA for others.
Why it's wrong here
IAP is for user identity, not fine-grained IP blocking with CAPTCHA.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing Cloud Armor's rule-based conditional logic with rate limiting or identity-based access controls, leading candidates to choose rate-based rules (A) or IAP (D) instead of recognizing that a deny rule with a condition on reCAPTCHA token presence directly solves the requirement.
Detailed technical explanation
How to think about this question
Cloud Armor rules use a priority-based evaluation (lower number = higher priority) and support expressions like `origin.ip` for source IP matching and `hasRecaptchaToken()` to check for a valid reCAPTCHA token. The token is validated by Google's reCAPTCHA service and passed via the `X-CloudArmor-Recaptcha-Token` header. In practice, this allows you to enforce strict IP restrictions while still permitting legitimate automated traffic (e.g., from a partner's IP) that passes the CAPTCHA challenge.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Manage implementation of cloud architecture — This question tests Manage implementation of cloud architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a deny rule for the IP ranges with a condition that the request does not contain a valid reCAPTCHA token. — Option C is correct because Cloud Armor security rules support boolean conditions using operators like `request.path` or custom headers. By creating a deny rule for the specific IP ranges with a condition that the request does not contain a valid reCAPTCHA token (evaluated via the `hasRecaptchaToken()` function), you allow traffic from those IPs only when the token is present. This directly implements the requirement without affecting other traffic.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.