220-1101 Virtualization and Cloud Computing Practice Question
A company wants to move its email system to the cloud to reduce the burden of managing servers, operating systems, and software updates. The IT team wants to configure only user mailboxes, email rules, and spam settings through a web-based admin console. The cloud provider will handle all underlying infrastructure, platform, and application maintenance. Which cloud service model BEST meets these requirements?
⚠ Common exam trap
The 220-1101 exam often tests the misconception that PaaS is the best fit for any 'platform' management, but the key differentiator is that SaaS provides a complete, ready-to-use application, whereas PaaS requires the customer to deploy and manage the application code themselves.
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
✓
Software as a Service (SaaS)
Software as a Service (SaaS) delivers a fully managed application, including email, where the cloud provider handles all underlying infrastructure, platform, and application maintenance. The IT team only needs to configure user mailboxes, rules, and spam settings via a web-based admin console, which is the hallmark of SaaS. This model eliminates the burden of managing servers, operating systems, and software updates, directly matching the company's requirements.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Infrastructure as a Service (IaaS)
Why it's wrong here
Infrastructure as a Service (IaaS) is incorrect because it provides only the foundational cloud building blocks: virtual machines, virtual disks, virtual networking, and firewalls. With IaaS, the customer must still install, configure, patch, and maintain the operating system, the email server software (e.g., Microsoft Exchange, email gateway), and all dependencies such as anti-virus, backups, and redundant services. IaaS shifts the physical datacenter burden to the cloud provider, but the operational burden of running an email system remains largely on the customer.
- ✗
Platform as a Service (PaaS)
Why it's wrong here
Platform as a Service (PaaS) is incorrect because it is designed for developing, testing, and deploying custom applications, not for consuming a ready-made email solution. PaaS provides a managed runtime environment—such as an application host, databases, and development frameworks—where a developer must still write or install an email application before users can send or receive mail. PaaS does not include built-in enterprise email features like shared mailboxes, Calendaring, or Outlook integration, so it fails to offload the email administration burden.
- ✓
Software as a Service (SaaS)
Why this is correct
Software as a Service (SaaS) is the correct answer because SaaS delivers a fully managed, ready-to-use application such as web-based email (e.g., Microsoft 365, Google Workspace). The provider owns and operates the entire infrastructure stack, including servers, storage, networking, patching, and high availability, while the customer only configures tenant-level settings such as user mailboxes, email routing, retention policies, and spam rules. This directly removes the burden of maintaining on-premises email servers, mail stores, and related hardware.
- ✗
Desktop as a Service (DaaS)
Why it's wrong here
Desktop as a Service (DaaS) is incorrect because it delivers virtual desktops–remote graphical sessions running a full operating system–rather than a specific application such as email. DaaS would give users a remote desktop environment where an email client could be launched, but the email server backend, mail storage, and message routing would still need to be separately provisioned and maintained. Thus DaaS changes the client access method but does not eliminate the need to operate an email infrastructure, so it does not meet the goal of reducing the email system burden.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1101 practice question is part of Courseiva's free CompTIA 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 220-1101 exam.