- A
Migrate the server to a single, larger Compute Engine instance with a static IP
Why wrong: A single instance does not scale automatically; it will still be overloaded during spikes.
- B
Deploy the application on a managed instance group in Compute Engine with autoscaling
Managed instance group with autoscaling automatically adds/removes instances based on load, and you pay only for the resources used.
- C
Rewrite the batch processing application as a Cloud Function
Why wrong: Cloud Functions are suited for short-lived, event-driven tasks, not long-running batch processing jobs.
- D
Use Cloud SQL for the database and a single Compute Engine instance for processing
Why wrong: While Cloud SQL is managed, the processing instance remains a single point and does not scale automatically.
Cloud Digital Leader Practice Question: A mid-size company runs a batch processing…
This GCDL practice question tests your understanding of gcdl exam topics. 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 mid-size company runs a batch processing application on a single on-premises server. The processing time varies; during month-end, the workload spikes and the server becomes overloaded, causing delays. The company wants a solution that automatically scales resources for peak times and only pays for extra capacity when used. They are considering migrating to Google Cloud. Which approach meets their needs?
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
Deploy the application on a managed instance group in Compute Engine with autoscaling
Option B is correct because deploying the application on a managed instance group with autoscaling allows Compute Engine to automatically add instances during peak loads (e.g., month-end) and remove them when demand drops, ensuring the company only pays for extra capacity when used. This matches the requirement for automatic scaling and cost efficiency. Option A lacks automatic scaling; option C is for serverless functions which are not ideal for long-running batch jobs; option D introduces Cloud SQL but still relies on a single instance for processing.
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.
- ✗
Migrate the server to a single, larger Compute Engine instance with a static IP
Why it's wrong here
A single instance does not scale automatically; it will still be overloaded during spikes.
- ✓
Deploy the application on a managed instance group in Compute Engine with autoscaling
Why this is correct
Managed instance group with autoscaling automatically adds/removes instances based on load, and you pay only for the resources used.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Rewrite the batch processing application as a Cloud Function
Why it's wrong here
Cloud Functions are suited for short-lived, event-driven tasks, not long-running batch processing jobs.
- ✗
Use Cloud SQL for the database and a single Compute Engine instance for processing
Why it's wrong here
While Cloud SQL is managed, the processing instance remains a single point and does not scale automatically.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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 GCDL 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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FAQ
Questions learners often ask
What does this GCDL question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Deploy the application on a managed instance group in Compute Engine with autoscaling — Option B is correct because deploying the application on a managed instance group with autoscaling allows Compute Engine to automatically add instances during peak loads (e.g., month-end) and remove them when demand drops, ensuring the company only pays for extra capacity when used. This matches the requirement for automatic scaling and cost efficiency. Option A lacks automatic scaling; option C is for serverless functions which are not ideal for long-running batch jobs; option D introduces Cloud SQL but still relies on a single instance for processing.
What should I do if I get this GCDL question wrong?
Identify which GCDL 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
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Last reviewed: Jun 23, 2026
This GCDL 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 GCDL exam.
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