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Question 59 of 507

Fundamental cloud concepts →easyMultiple ChoiceObjective-mapped

Quick Answer

The answer is Infrastructure as a Service (IaaS). This is correct because IaaS precisely defines the split where the cloud provider manages the physical hardware and virtualization layer, while the customer retains full control over the operating system, middleware, and applications. In contrast, PaaS would have the provider manage the OS and middleware, and SaaS would manage the entire application stack. On the Google Cloud Digital Leader exam, this scenario tests your ability to distinguish service models by responsibility boundaries—a common trap is confusing IaaS with PaaS when the question mentions “managing the OS,” which is actually the customer’s job in IaaS. To remember, think of IaaS as “Infrastructure only”—you get the bare metal and hypervisor, but you patch the OS and install your own software. A useful mnemonic is “IaaS = I am the Sysadmin,” meaning you handle everything above the hypervisor.

Cloud Digital Leader Fundamental cloud concepts Practice Question

This GCDL practice question tests your understanding of fundamental cloud concepts. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 use computing resources over the internet without managing physical servers. The cloud provider manages the underlying hardware and virtualization, while the company manages the operating system, middleware, and applications. Which cloud service model does this describe?

Question 1easymultiple choice

Study the full virtualization explanation →

A
Software as a Service (SaaS)
Why wrong: SaaS delivers fully managed applications over the internet (e.g., Gmail, Salesforce). The customer manages nothing except data and user access — the provider manages everything from hardware to the application.
B
Infrastructure as a Service (IaaS)
IaaS provides virtualized compute, storage, and networking. The provider manages physical infrastructure; the customer manages OS, middleware, and applications. Compute Engine is Google's IaaS offering.
C
Platform as a Service (PaaS)
Why wrong: PaaS provides a managed runtime environment where the customer deploys applications without managing OS or middleware. App Engine is Google's PaaS — the customer manages code and data, not the infrastructure below.
D
Function as a Service (FaaS)
Why wrong: FaaS (serverless) provides event-driven execution of individual functions — the provider manages everything except the function code. This is more managed than IaaS.

Full breakdown with real-world context →

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

✓

Infrastructure as a Service (IaaS)

This scenario describes Infrastructure as a Service (IaaS) because the cloud provider manages the physical hardware and virtualization layer, while the customer retains control over the operating system, middleware, and applications. In IaaS, the provider offers virtualized computing resources (e.g., virtual machines, storage, networks) via APIs or dashboards, and the customer is responsible for OS patches, application configuration, and middleware management. This matches the given split of responsibilities exactly.

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.

✗
Software as a Service (SaaS)
Why it's wrong here
SaaS delivers fully managed applications over the internet (e.g., Gmail, Salesforce). The customer manages nothing except data and user access — the provider manages everything from hardware to the application.
✓
Infrastructure as a Service (IaaS)
Why this is correct
IaaS provides virtualized compute, storage, and networking. The provider manages physical infrastructure; the customer manages OS, middleware, and applications. Compute Engine is Google's IaaS offering.
Related concept
Read the scenario before looking for a memorised answer.
✗
Platform as a Service (PaaS)
Why it's wrong here
PaaS provides a managed runtime environment where the customer deploys applications without managing OS or middleware. App Engine is Google's PaaS — the customer manages code and data, not the infrastructure below.
✗
Function as a Service (FaaS)
Why it's wrong here
FaaS (serverless) provides event-driven execution of individual functions — the provider manages everything except the function code. This is more managed than IaaS.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Cisco often tests the distinction between IaaS and PaaS by describing a scenario where the customer manages the OS — many candidates mistakenly choose PaaS because they associate 'platform' with application deployment, but PaaS removes OS management from the customer entirely.

Detailed technical explanation

How to think about this question

Under the hood, IaaS relies on hypervisors (e.g., VMware ESXi, KVM) to abstract physical hardware into virtual machines, with the provider managing the hypervisor and physical network fabric. The customer interacts via cloud APIs (e.g., AWS EC2, Azure VMs) to provision instances, configure virtual networks (VPCs), and attach storage volumes — but must handle OS-level tasks like kernel updates, firewall rules (iptables), and application dependencies. A real-world scenario: a company migrating a legacy .NET application to the cloud might choose IaaS to retain full control over Windows Server and IIS configurations while offloading hardware maintenance.

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.

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 GCDL question test?

Fundamental cloud concepts — This question tests Fundamental cloud concepts — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Infrastructure as a Service (IaaS) — This scenario describes Infrastructure as a Service (IaaS) because the cloud provider manages the physical hardware and virtualization layer, while the customer retains control over the operating system, middleware, and applications. In IaaS, the provider offers virtualized computing resources (e.g., virtual machines, storage, networks) via APIs or dashboards, and the customer is responsible for OS patches, application configuration, and middleware management. This matches the given split of responsibilities exactly.

What should I do if I get this GCDL 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

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Same concept, more angles

1 more ways this is tested on GCDL

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. A team uses Google Workspace (Gmail, Docs, Sheets) for their daily work. They do not manage any servers or software installation — Google maintains everything. Which cloud service model does Google Workspace represent?

easy

A.Infrastructure as a Service (IaaS)
B.Platform as a Service (PaaS)
✓ C.Software as a Service (SaaS)
D.Database as a Service (DBaaS)

Why C: Google Workspace is a classic example of Software as a Service (SaaS) because users access applications like Gmail, Docs, and Sheets via a web browser without managing the underlying infrastructure, operating systems, or software installations. Google handles all maintenance, security patching, and uptime, which aligns with the SaaS model where the provider delivers fully functional software over the internet. Unlike IaaS or PaaS, the end-user does not control the runtime environment or deploy custom code on the platform.

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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.