Hypervisor types, virtual machine concepts, and containerization basics tested on the CompTIA Cloud+ exam.
34 cards · basic cards · AI-written, checked twice. Edit anything.
- What is a hypervisor?
- Software that creates and manages virtual machines by abstracting physical hardware resources.
- What is a Type 1 hypervisor?
- A hypervisor that runs directly on hardware without requiring a host operating system.
- What is a Type 2 hypervisor?
- A hypervisor that runs as an application on top of a host operating system.
- Name three examples of Type 1 hypervisors.
- ESXi, Hyper-V, and KVM.
- Name two examples of Type 2 hypervisors.
- VirtualBox and VMware Workstation.
- What is the main performance advantage of Type 1 hypervisors over Type 2?
- Type 1 has less overhead because it runs directly on hardware without a host OS layer.
- What is a virtual machine (VM)?
- An emulated computer that runs on physical hardware controlled by a hypervisor.
- What is a VM snapshot?
- A point-in-time copy of a virtual machine's state, including all disk and memory contents.
- What is the primary use case for VM snapshots?
- To enable quick rollback to a previous state if something goes wrong after a change.
- What is a vCPU?
- A virtual CPU allocated to a virtual machine from the physical processor.
- What is vRAM?
- Virtual random access memory allocated to a virtual machine from the physical memory pool.
- What is live migration?
- Moving a running virtual machine from one physical host to another without stopping it.
- What is a key benefit of live migration?
- Zero or minimal downtime, as the VM continues running during the transfer to the new host.
- What is a VM template?
- A master copy of a virtual machine configured with an operating system and applications, used to create new VMs.
- What is VM cloning?
- The process of creating an exact copy of a virtual machine from a template or existing VM.
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