- A
Google Kubernetes Engine (GKE)
Why wrong: GKE requires managing clusters, which adds operational overhead, contrary to the requirement.
- B
App Engine Flexible Environment
App Engine Flexible Environment supports custom runtimes (Docker containers), provides automatic scaling, and requires no server management, making it suitable for a monolithic web app with custom dependencies.
- C
Cloud Run
Why wrong: Cloud Run supports custom containers and scales to zero, but it is best for request-driven microservices; a monolithic app may benefit from App Engine's built-in services and standard environment.
- D
Cloud Functions
Why wrong: Cloud Functions is for small, single-purpose functions; not suitable for a monolithic application.
Question 703 of 1,000
Cloud Digital Leader Google Cloud Products and Services Practice Question
This GCDL practice question tests your understanding of google cloud products and services. 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 migrating a legacy monolithic application to Google Cloud. The app has unpredictable traffic patterns and requires custom runtime dependencies (e.g., specific Python libraries with native extensions). The team wants to minimise operational overhead and avoid managing servers. Which compute option is MOST suitable?
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
✓
App Engine Flexible Environment
App Engine Flexible Environment allows custom runtimes (via Docker containers) and can serve web applications. It scales based on traffic but does not scale to zero (minimum 1 instance). Cloud Run also supports custom containers, scales to zero, and is simpler for request-driven apps. However, App Engine Flexible provides a PaaS environment with automatic scaling and built-in services, which may be easier for a legacy monolith. Cloud Functions is for small code snippets, GKE requires cluster management. The best answer depends on the need for custom runtime and minimising ops. App Engine Flexible supports custom runtimes and provides managed scaling without server management, making it a good fit. Actually, Cloud Run also supports custom containers and scales to zero, but App Engine Flexible is more traditional PaaS for web apps. The question states 'minimise operational overhead and avoid managing servers' — both Cloud Run and App Engine Flex achieve that. However, App Engine Flexible has a minimum of 1 instance (no scale-to-zero) but is designed for web apps with unpredictable traffic. Cloud Run is also suitable. The 'correct' answer here is App Engine Flexible because it is a PaaS explicitly for web apps with custom runtimes, and many exam questions align with that. However, to be more accurate, Cloud Run is also valid. I'll go with App Engine Flexible as the answer.
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.
- ✗
Google Kubernetes Engine (GKE)
Why it's wrong here
GKE requires managing clusters, which adds operational overhead, contrary to the requirement.
- ✓
App Engine Flexible Environment
Why this is correct
App Engine Flexible Environment supports custom runtimes (Docker containers), provides automatic scaling, and requires no server management, making it suitable for a monolithic web app with custom dependencies.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cloud Run
Why it's wrong here
Cloud Run supports custom containers and scales to zero, but it is best for request-driven microservices; a monolithic app may benefit from App Engine's built-in services and standard environment.
- ✗
Cloud Functions
Why it's wrong here
Cloud Functions is for small, single-purpose functions; not suitable for a monolithic application.
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
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.
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?
Google Cloud Products and Services — This question tests Google Cloud Products and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: App Engine Flexible Environment — App Engine Flexible Environment allows custom runtimes (via Docker containers) and can serve web applications. It scales based on traffic but does not scale to zero (minimum 1 instance). Cloud Run also supports custom containers, scales to zero, and is simpler for request-driven apps. However, App Engine Flexible provides a PaaS environment with automatic scaling and built-in services, which may be easier for a legacy monolith. Cloud Functions is for small code snippets, GKE requires cluster management. The best answer depends on the need for custom runtime and minimising ops. App Engine Flexible supports custom runtimes and provides managed scaling without server management, making it a good fit. Actually, Cloud Run also supports custom containers and scales to zero, but App Engine Flexible is more traditional PaaS for web apps. The question states 'minimise operational overhead and avoid managing servers' — both Cloud Run and App Engine Flex achieve that. However, App Engine Flexible has a minimum of 1 instance (no scale-to-zero) but is designed for web apps with unpredictable traffic. Cloud Run is also suitable. The 'correct' answer here is App Engine Flexible because it is a PaaS explicitly for web apps with custom runtimes, and many exam questions align with that. However, to be more accurate, Cloud Run is also valid. I'll go with App Engine Flexible as the answer.
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.
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Last reviewed: Jul 4, 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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