- A
Use Cloud Functions with a HTTP trigger and increase the timeout to 60 minutes.
Why wrong: Cloud Functions has a maximum timeout of 60 minutes but does not support WebSocket.
- B
Deploy the application on Google Kubernetes Engine (GKE) with a NodePort service to handle WebSocket natively.
Why wrong: This works but does not use Cloud Run for the long-running requests; the question asks about Cloud Run.
- C
Move WebSocket connections to Compute Engine and adjust Cloud Run timeout to 60 minutes for long requests.
Cloud Run timeout can be set to up to 60 minutes; WebSocket is not supported, so use Compute Engine for WebSocket.
- D
Increase the Cloud Run container timeout to the maximum (60 minutes) and enable WebSocket support by setting an environment variable.
Why wrong: Cloud Run does not support WebSocket connections at all.
Google PCA Practice Question: Designing and Planning a Cloud Solution Architecture
This PCA practice question tests your understanding of designing and planning a cloud solution architecture. 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.
A company is running a containerized application on Cloud Run and needs to handle long-running requests that may exceed Cloud Run's default timeout. They also need to use WebSocket connections. What should they do?
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
Move WebSocket connections to Compute Engine and adjust Cloud Run timeout to 60 minutes for long requests.
Cloud Run allows configuring request timeout up to 60 minutes. However, WebSocket support is limited; Cloud Run does not support WebSocket connections natively. For WebSocket, they should consider GKE or Compute Engine. Thus, the correct answer is to adjust Cloud Run timeout max and move WebSocket to another service.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 Cloud Functions with a HTTP trigger and increase the timeout to 60 minutes.
Why it's wrong here
Cloud Functions has a maximum timeout of 60 minutes but does not support WebSocket.
- ✗
Deploy the application on Google Kubernetes Engine (GKE) with a NodePort service to handle WebSocket natively.
Why it's wrong here
This works but does not use Cloud Run for the long-running requests; the question asks about Cloud Run.
- ✓
Move WebSocket connections to Compute Engine and adjust Cloud Run timeout to 60 minutes for long requests.
Why this is correct
Cloud Run timeout can be set to up to 60 minutes; WebSocket is not supported, so use Compute Engine for WebSocket.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Increase the Cloud Run container timeout to the maximum (60 minutes) and enable WebSocket support by setting an environment variable.
Why it's wrong here
Cloud Run does not support WebSocket connections at all.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCA NAT questions on configuration and troubleshooting.
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Designing and Planning a Cloud Solution Architecture — study guide chapter
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FAQ
Questions learners often ask
What does this PCA question test?
Designing and Planning a Cloud Solution Architecture — This question tests Designing and Planning a Cloud Solution Architecture — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Move WebSocket connections to Compute Engine and adjust Cloud Run timeout to 60 minutes for long requests. — Cloud Run allows configuring request timeout up to 60 minutes. However, WebSocket support is limited; Cloud Run does not support WebSocket connections natively. For WebSocket, they should consider GKE or Compute Engine. Thus, the correct answer is to adjust Cloud Run timeout max and move WebSocket to another service.
What should I do if I get this PCA question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCA NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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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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