Exam objective

Core 1 4.0: Virtualization Fundamentals

A+ Topic

Virtualization Fundamentals for A+

This A+ topic provides A+ Core 1 technician-level source material for basic virtualization concepts: why virtual machines exist and when to choose them, the hypervisor category distinction (Type 1 vs Type 2), entry-level virtualization requirements (security, network, storage), and the support-level difference between containers and virtual machines. The focus is recognition and scenario judgment for support tasks, not architecture, enterprise design, cloud service models, or vendor-specific implementations.

Start first lesson

4 lessons in this topic

1

Virtual Machines & Purpose

Recognize what a virtual machine is and choose virtualization when the scenario calls for isolation, testing, or a separate environment without extra physical hardware.

2

Hypervisors: Type 1 vs Type 2

Differentiate Type 1 and Type 2 hypervisors and identify which hypervisor model best matches a straightforward scenario.

3

Virtualization Requirements

Recognize the security, network, and storage requirements that matter in simple virtualization setup scenarios.

4

Containers vs Virtual Machines

Distinguish containers from full virtual machines and avoid treating them as interchangeable in support-level scenarios.

Common mistakes to avoid

1

- Thinking the VM is the same as the hypervisor; the VM is a guest environment, the hypervisor provides virtualization. - Believing VMs are always faster than physical machines; performance depends on resources and overhead.

2

- Confusing the VM for the hypervisor (the VM is a guest; the hypervisor is the host layer). - Equating Type 1 with cloud or vendor products; the exam only requires recognizing where the hypervisor runs.

3

- Treating virtual network configuration as automatically matching physical network capacity; both must be considered separately. - Assuming VMs are inherently secure; proper isolation and access controls are needed.

4

- Thinking containers and VMs provide identical isolation and resource models; containers share the host kernel while VMs do not. - Bringing orchestration topics into answers; choreography or cluster tooling is outside this lesson focus.