2 Virtual Machines Free Online FlashCards

What is a virtual machine (VM)?

A software-defined computer that runs its own operating system on shared physical hardware.

What does a hypervisor do?

It manages physical hardware and presents each VM with virtual resources, scheduling hardware access and separating VM resources.

Where does a Type 1 hypervisor run?

It runs directly on the physical hardware.

What is a VM image?

A reusable starting point, usually containing an operating system and sometimes preinstalled software or settings.

What is a cloud VM often called?

In cloud environments, a VM is often called an instance.

What is VM provisioning?

The process of creating a VM and preparing it to run a workload.

What connects a VM to a network?

A virtual network interface connects the VM to a network; it may connect through a virtual switch locally or attach to a cloud virtual network and subnet.

How do boot disks and data disks differ?

A boot disk contains the operating system; data disks hold application files or databases.

Can a VM snapshot replace a tested backup plan?

No. A snapshot or reusable image can help with recovery or replication, but it should not replace a tested backup and restore plan.

What should VM health and capacity monitoring track?

Track availability, CPU, memory, disk space, and I/O; investigate sustained resource pressure.

Where does a Type 2 hypervisor run?

It runs as software within a host operating system.

How does a guest OS experience a VM's resources?

The guest operating system behaves as though it has its own processor, memory, network adapters, and disks.