CompTIA Server+ (SK0-005)Server AdministrationMedium
A server administrator needs to quickly deploy five new Linux virtual machines (VMs) with an identical operating system configuration, pre-installed software, and security hardening. To standardize the deployment process and reduce manual effort, which virtualization feature should the administrator leverage?
- ALive migration
- BResource pooling
- CSnapshotting
- DVM templates
Show answer & explanationAnswer & explanation
Correct answer: D. VM templates
VM templates (often called golden images) are pre-configured virtual machine images that include the OS, applications, and settings. They are ideal for rapidly deploying multiple identical VMs, ensuring consistency and significantly reducing manual effort.
Why the other options are wrong
- A. Live migration moves a running VM from one physical host to another without downtime, which is unrelated to deploying new VMs.
- B. Resource pooling groups physical server resources (CPU, memory) to be allocated to VMs, which is a management feature but not for deploying VMs with specific configurations.
- C. Snapshotting saves the state of a VM at a specific point in time, primarily for rollback purposes, not for deploying multiple new identical VMs efficiently.
VM Template (Golden Image)
A master copy of a virtual machine, containing a pre-installed OS, applications, and specific configurations, used for rapid and consistent VM deployment.
- Ensures standardization across deployed VMs.
- Reduces manual configuration effort.
- Speeds up the deployment of new virtual machines.
Memory trick: Templates are like cookie cutters for VMs.