Quick Answer
The answer is virtualization software, which is the correct choice because it provides the hypervisor layer that abstracts and allocates physical server resources—like CPU, memory, and storage—to multiple isolated virtual machines, enabling a single server to run several operating systems concurrently for testing or production. On the CompTIA ITF+ FC0-U61 exam, this concept tests your understanding of how virtualization maximizes hardware efficiency, often appearing in questions about server consolidation or lab environments. A common trap is confusing virtualization with dual-booting, but remember: virtualization runs VMs simultaneously on one host, while dual-booting runs only one OS at a time. To lock it in, think of the mnemonic “VMs need a V-layer”—virtual machines require a virtualization layer (the hypervisor) to share hardware.
This FC0-U61 practice question tests your understanding of applications and software. 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 system administrator configures a server to run multiple virtual machines for testing. Which type of software enables this?
Backup software
Why wrong: Backup software creates copies of data.
Virtualization software
Hypervisors like VMware create virtual machines.
Remote desktop software
Why wrong: Remote desktop allows controlling a single computer.
Antivirus software
Why wrong: Antivirus software protects against threats.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Virtualization software
Virtualization software, such as VMware vSphere, Microsoft Hyper-V, or Oracle VirtualBox, creates a hypervisor layer that abstracts physical hardware resources (CPU, memory, storage) and allocates them to multiple isolated virtual machines. This allows a single physical server to run several operating systems concurrently for testing or production workloads, which is exactly what the system administrator needs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Backup software
Why it's wrong here
Backup software creates copies of data.
Virtualization software
Why this is correct
Hypervisors like VMware create virtual machines.
Related concept
Read the scenario before looking for a memorised answer.
Remote desktop software
Why it's wrong here
Remote desktop allows controlling a single computer.
Antivirus software
Why it's wrong here
Antivirus software protects against threats.
Common exam traps
The trap here is that candidates may confuse virtualization software with remote desktop software because both involve accessing multiple systems, but remote desktop only provides a connection to an already-running OS, not the ability to create and run multiple OS instances on one server.
Detailed technical explanation
Under the hood, a Type 2 hypervisor (e.g., VirtualBox) runs as an application on a host OS, while a Type 1 hypervisor (e.g., VMware ESXi) runs directly on bare metal, managing hardware access via a microkernel. A subtle behavior is that virtual machines use paravirtualized drivers (e.g., VirtIO) to improve I/O performance by bypassing emulated hardware. In real-world scenarios, a sysadmin might use nested virtualization (e.g., running Hyper-V inside a VMware VM) to test hypervisor configurations, which requires explicit CPU support for Intel VT-x or AMD-V.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
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FAQ
Applications and Software — This question tests Applications and Software — Read the scenario before looking for a memorised answer..
The correct answer is: Virtualization software — Virtualization software, such as VMware vSphere, Microsoft Hyper-V, or Oracle VirtualBox, creates a hypervisor layer that abstracts physical hardware resources (CPU, memory, storage) and allocates them to multiple isolated virtual machines. This allows a single physical server to run several operating systems concurrently for testing or production workloads, which is exactly what the system administrator needs.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This FC0-U61 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 FC0-U61 exam.
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