Type 2 hypervisor

As explained in Acing the CCNA Exam: Volume 2 Advanced Networking and Security

A type 2 hypervisor is a hypervisor that runs as an application on an operating system installed on physical hardware.

A type 2 hypervisor, or hosted hypervisor, runs as an application on a host operating system installed on physical hardware. It manages CPU, memory, storage, and other hardware resources for guest operating systems running in virtual machines. section 17.1.1

Key operational characteristics include:

• Separates the host OS from guest OSs: the host OS runs directly on the hardware, while each guest OS runs inside a virtual machine. section 17.1.1
• Uses hardware less efficiently than a type 1 hypervisor because the host OS provides an additional software layer. section 17.4
• Favors ease of setup and use, making it common on personal devices for software development, testing, and education. section 17.4
• Provides each VM with a virtual NIC and uses a virtual switch to forward traffic between VMs and the host’s physical NICs. section 17.4
• Supports access and trunk behavior on virtual-switch ports, allowing VLAN segmentation between virtual machines. section 17.4

Desktop virtualization lab

A developer installs Oracle VM VirtualBox or VMware Workstation on a personal computer, then runs multiple guest operating systems for development, testing, or education. The VMs communicate through virtual NICs and a virtual switch. section 17.1.1 section 17.4

Figure 17.5 A type 2 hypervisor runs as an application on a host OS.

Visualizes the defining placement of a type 2 hypervisor as an application running on a host OS. section 17.1.1

How Acing the CCNA Exam: Volume 2 Advanced Networking and Security covers it

How deep it goes

Explains placement, terminology, resource allocation, efficiency trade-offs, and virtual networking, but does not provide configuration commands.

Examples

Names Oracle VM VirtualBox and VMware Workstation and illustrates VM connectivity through a virtual switch.

What it assumes

Requires recognizing physical hardware, operating systems, virtual machines, and basic network interfaces.

What you can do after

Evaluate/understand how hosted virtualization supports guest operating systems and virtual-machine networking.

How it connects

Contrasts type 1 hypervisors and connects virtual machines with host operating systems, guest operating systems, virtual NICs, virtual switches, and VLANs.

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Related concepts

• hypervisorkind of · A hypervisor is software or firmware that creates, manages, and isolates virtual machines while mediating their access to physical hardware resources.
• type 1 hypervisorcontrasts with · A type 1 hypervisor is virtualization software that runs directly on physical hardware and manages virtual machines without a general-purpose host operating system.

This explainer was generated by Manning's knowledge graph from the text of Acing the CCNA Exam: Volume 2 Advanced Networking and Security. The section links point to the parts of the book it draws on.