- A
Eventarc with Cloud Storage trigger and Cloud Run destination
Eventarc natively supports Cloud Storage events and routes to Cloud Run.
- B
Cloud Scheduler to periodically poll the bucket
Why wrong: Polling is not event-driven and introduces latency.
- C
Cloud Functions triggered by Cloud Storage
Why wrong: Cloud Functions can be triggered but the question specifies Cloud Run, not Cloud Functions.
- D
Pub/Sub with a push subscription to Cloud Run
Why wrong: While possible, this requires manual integration; Eventarc provides a simpler, managed integration.
Question 457 of 1,000
PDE Ingesting and Processing the Data Practice Question
This PDE practice question tests your understanding of ingesting and processing the data. 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 wants to trigger a Cloud Run service whenever a new file is uploaded to a specific Cloud Storage bucket. Which event-driven solution 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
✓
Eventarc with Cloud Storage trigger and Cloud Run destination
Eventarc is the recommended service for routing events from Cloud Storage to Cloud Run because it provides a fully managed, event-driven architecture with built-in filtering and retry logic. When a new file is uploaded, Cloud Storage emits a notification that Eventarc captures and delivers directly to the Cloud Run service as an HTTP request, enabling serverless processing without polling or additional infrastructure.
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.
- ✓
Eventarc with Cloud Storage trigger and Cloud Run destination
Why this is correct
Eventarc natively supports Cloud Storage events and routes to Cloud Run.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cloud Scheduler to periodically poll the bucket
Why it's wrong here
Polling is not event-driven and introduces latency.
- ✗
Cloud Functions triggered by Cloud Storage
Why it's wrong here
Cloud Functions can be triggered but the question specifies Cloud Run, not Cloud Functions.
- ✗
Pub/Sub with a push subscription to Cloud Run
Why it's wrong here
While possible, this requires manual integration; Eventarc provides a simpler, managed integration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Cloud Functions (option C) as the only serverless compute option for Cloud Storage events, overlooking that Eventarc is the modern, preferred service for routing events to Cloud Run, and that Pub/Sub (option D) requires manual setup not shown in the question.
Detailed technical explanation
How to think about this question
Eventarc uses a Cloud Audit Logs-based trigger for Cloud Storage events, which captures object change notifications via the `google.cloud.storage.object.v1.finalized` event type. Under the hood, Eventarc creates a Pub/Sub topic and subscription automatically, but it handles authentication, delivery, and dead-letter queues transparently, reducing operational overhead. In real-world scenarios, this pattern is critical for real-time data pipelines where latency matters, such as processing incoming images or logs immediately upon upload.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this PDE question test?
Ingesting and Processing the Data — This question tests Ingesting and Processing the Data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Eventarc with Cloud Storage trigger and Cloud Run destination — Eventarc is the recommended service for routing events from Cloud Storage to Cloud Run because it provides a fully managed, event-driven architecture with built-in filtering and retry logic. When a new file is uploaded, Cloud Storage emits a notification that Eventarc captures and delivers directly to the Cloud Run service as an HTTP request, enabling serverless processing without polling or additional infrastructure.
What should I do if I get this PDE 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 →
Last reviewed: Jul 4, 2026
This PDE 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 PDE exam.
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