- A
Cloud Functions (2nd gen) with an event-driven trigger from Pub/Sub and retry on failure
2nd gen supports up to 60-minute timeout and event-driven triggers, with retry enabled.
- B
Cloud Functions (1st gen) with an HTTP trigger and a Pub/Sub push subscription
Why wrong: Timeout limitation still applies (9 minutes max).
- C
Cloud Functions (2nd gen) with an HTTP trigger
Why wrong: HTTP trigger is not directly integrated with Pub/Sub; the function needs a Pub/Sub trigger to receive messages automatically.
- D
Cloud Functions (1st gen) with a background function and retry on failure
Why wrong: 1st gen has a maximum timeout of 9 minutes, insufficient for 10-minute processing.
Question 75 of 1,000
Google ACE Planning and Configuring a Cloud Solution Practice Question
This ACE practice question tests your understanding of planning and configuring a cloud solution. 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 developer is deploying a Cloud Function that processes messages from a Pub/Sub topic. The function takes 10 minutes to complete each message. The developer needs to ensure that messages are not lost if the function fails. Which Cloud Function generation and configuration should they use?
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
✓
Cloud Functions (2nd gen) with an event-driven trigger from Pub/Sub and retry on failure
Cloud Functions (2nd gen) supports longer timeouts (up to 60 minutes) and event-driven triggers like Pub/Sub with retries. 1st gen has a max timeout of 9 minutes. Retry on failure is configured in the subscription. Background functions are 1st gen.
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.
- ✓
Cloud Functions (2nd gen) with an event-driven trigger from Pub/Sub and retry on failure
Why this is correct
2nd gen supports up to 60-minute timeout and event-driven triggers, with retry enabled.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cloud Functions (1st gen) with an HTTP trigger and a Pub/Sub push subscription
Why it's wrong here
Timeout limitation still applies (9 minutes max).
- ✗
Cloud Functions (2nd gen) with an HTTP trigger
Why it's wrong here
HTTP trigger is not directly integrated with Pub/Sub; the function needs a Pub/Sub trigger to receive messages automatically.
- ✗
Cloud Functions (1st gen) with a background function and retry on failure
Why it's wrong here
1st gen has a maximum timeout of 9 minutes, insufficient for 10-minute processing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Identify which ACE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Planning and Configuring a Cloud Solution — study guide chapter
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FAQ
Questions learners often ask
What does this ACE question test?
Planning and Configuring a Cloud Solution — This question tests Planning and Configuring a Cloud Solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Cloud Functions (2nd gen) with an event-driven trigger from Pub/Sub and retry on failure — Cloud Functions (2nd gen) supports longer timeouts (up to 60 minutes) and event-driven triggers like Pub/Sub with retries. 1st gen has a max timeout of 9 minutes. Retry on failure is configured in the subscription. Background functions are 1st gen.
What should I do if I get this ACE question wrong?
Identify which ACE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 →
Last reviewed: Jul 4, 2026
This ACE 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 ACE exam.
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