Google PCA Manage implementation of cloud architecture Practice Question
This PCA practice question tests your understanding of manage implementation of cloud architecture. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 media streaming company uses Google Cloud CDN to deliver content. They notice that users in certain regions experience high latency despite CDN caching. The content is dynamic based on user location (e.g., local news). What should they do to improve performance?
Deploy Cloud Run services in multiple regions and use a global external HTTPS load balancer with backend services to route requests to the nearest region
This reduces latency for dynamic content by serving from the nearest region.
B
Use Cloud Functions with a regional HTTP trigger and Cloud CDN to cache the responses
Why wrong: Cloud Functions are regional; Cloud CDN caching dynamic content may serve stale data.
C
Use Cloud Armor to route traffic to the nearest point of presence
Why wrong: Cloud Armor is a WAF/DDoS protection service, not a routing solution.
D
Configure Cloud CDN to use cache keys based on user location headers
Why wrong: Cloud CDN does not support user-location-based cache keys; dynamic content shouldn't be cached.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy Cloud Run services in multiple regions and use a global external HTTPS load balancer with backend services to route requests to the nearest region
Option A is correct because deploying Cloud Run services in multiple regions and using a global external HTTPSload balancer with backend services enables location-based routing via the load balancer's anycast IP and backend service configuration. The load balancer automatically routes user requests to the nearest Cloud Run backend that has capacity, reducing latency for dynamic, location-specific content that cannot be effectively cached by Cloud CDN.
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.
✓
Deploy Cloud Run services in multiple regions and use a global external HTTPS load balancer with backend services to route requests to the nearest region
Why this is correct
This reduces latency for dynamic content by serving from the nearest region.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Cloud Functions with a regional HTTP trigger and Cloud CDN to cache the responses
Why it's wrong here
Cloud Functions are regional; Cloud CDN caching dynamic content may serve stale data.
✗
Use Cloud Armor to route traffic to the nearest point of presence
Why it's wrong here
Cloud Armor is a WAF/DDoS protection service, not a routing solution.
✗
Configure Cloud CDN to use cache keys based on user location headers
Why it's wrong here
Cloud CDN does not support user-location-based cache keys; dynamic content shouldn't be cached.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that Cloud CDN alone can solve latency for dynamic content, but the trap here is that dynamic, location-specific content cannot be effectively cached, so the correct solution is to deploy compute resources closer to users and use a global load balancer for intelligent routing.
Detailed technical explanation
How to think about this question
The global external HTTPSload balancer uses Google Front End (GFE) anycast IPs to terminate traffic at the edge closest to the user, then routes via a global backend service that can be configured with a 'location-based routing' policy (e.g., using the 'localityLbPolicy' set to 'ROUND_ROBIN' or 'LEAST_REQUEST' per zone). Under the hood, the load balancer leverages the 'network endpoint groups' (NEGs) for Cloud Run, allowing direct routing to serverless backends without a proxy, and the 'traffic director' control plane ensures session affinity and health checks across regions.
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 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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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: Deploy Cloud Run services in multiple regions and use a global external HTTPS load balancer with backend services to route requests to the nearest region — Option A is correct because deploying Cloud Run services in multiple regions and using a global external HTTPS load balancer with backend services enables location-based routing via the load balancer's anycast IP and backend service configuration. The load balancer automatically routes user requests to the nearest Cloud Run backend that has capacity, reducing latency for dynamic, location-specific content that cannot be effectively cached by Cloud CDN.
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.
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