Hypervisor
A hypervisor is software or firmware that creates, manages, and isolates virtual machines while mediating their access to physical hardware resources.
Acing the CCNA Exam: Volume 2 Advanced Networking and Security
A hypervisor is software or firmware that creates and manages virtual machines while allocating physical hardware resources to them.
- How it is used
- Explains how virtualization consolidates servers and allocates shared hardware resources among multiple operating systems.
- How deep it goes
- Defines hypervisor placement, resource allocation, VM networking, and type distinctions without configuration procedures or vendor-specific commands.
- Examples
- Uses VMware ESXi, Microsoft Hyper-V, data centers, cloud environments, and development or testing devices as examples.
- What you can do after
- Evaluate type 1 and type 2 hypervisors for server, cloud, development, testing, and educational virtualization scenarios.
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Amazon Web Services in Action, Third Edition: An in-depth guide to AWS
Software that creates and manages virtual machines by isolating guests and scheduling their access to physical hardware.
- How it is used
- Explains how Amazon EC2 runs isolated virtual machines while sharing physical hardware.
- How deep it goes
- Defines isolation, scheduling, and virtual hardware, then identifies Nitro, KVM, and HVM without detailing hypervisor implementation internals.
- Examples
- Uses EC2 virtual machines, AMIs, web applications, enterprise applications, and data-processing workloads as concrete examples.
- What you can do after
- Apply it via Amazon EC2 by relating an AMI-launched VM to its host, guest isolation, and virtual hardware.
Kubernetes in Action, Second Edition
A hypervisor is software that creates and manages virtual machines by allocating physical hardware resources to them.
- How it is used
- Contrasts virtual machines with containers by showing how hardware resources, kernels, and isolation are managed.
- How deep it goes
- Explains resource splitting, syscall forwarding, CPU virtualization, and type distinctions without detailing hypervisor implementation.
- Examples
- Uses diagrams comparing applications running on bare metal, in virtual machines, and in containers.
- What you can do after
- Evaluate how virtual machines isolate applications and differ from containers in startup, kernel sharing, and hardware access.
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Related concepts
- virtual machineused by · A virtual machine is a software-based environment that emulates or implements an abstract computer system, providing an interface on which an operating system or programs can execute.
- type 1 hypervisorincludes · A type 1 hypervisor is virtualization software that runs directly on physical hardware and manages virtual machines without a general-purpose host operating system.
- type 2 hypervisorincludes · A type 2 hypervisor is virtualization software that runs on top of a host operating system to manage virtual machines.
- hypervisor-based remotingused by · Hypervisor-based remoting is remote command execution that uses a hypervisor or virtualization-management intermediary instead of direct network communication with the guest machine.
- Minikubeused by · Minikube is an open-source tool that runs a local Kubernetes cluster, typically on a single computer, for development, testing, and learning.
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