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CV0-002 · Question #244

A cloud administrator is provisioning five VMs, each with a minimum of 8GB of RAM and a varying load throughout the day. The hypervisor has only 32GB of RAM. Which of the following features should the

The correct answer is A. Memory overcommitment. To provision five VMs, each requiring a minimum of 8GB RAM, on a hypervisor with only 32GB total RAM, the administrator should use memory overcommitment.

Deployment

Question

A cloud administrator is provisioning five VMs, each with a minimum of 8GB of RAM and a varying load throughout the day. The hypervisor has only 32GB of RAM. Which of the following features should the administrator use?

Options

  • AMemory overcommitment
  • BThin-provisioned model
  • CProcess scheduling
  • DHyperthreading

How the community answered

(38 responses)
  • A
    95% (36)
  • B
    3% (1)
  • C
    3% (1)

Why each option

To provision five VMs, each requiring a minimum of 8GB RAM, on a hypervisor with only 32GB total RAM, the administrator should use memory overcommitment.

AMemory overcommitmentCorrect

Memory overcommitment allows the hypervisor to allocate more virtual RAM to virtual machines than the physical RAM available on the host. This is effective when VMs do not simultaneously utilize their maximum allocated memory, enabling the provisioning of 5 x 8GB VMs (40GB total) on a 32GB host.

BThin-provisioned model

A thin-provisioned model applies to storage, allowing virtual disks to consume physical storage only as data is written, not to RAM allocation.

CProcess scheduling

Process scheduling is a CPU management technique that determines how and when processes run on a CPU, not how memory is allocated beyond physical limits.

DHyperthreading

Hyperthreading is a CPU technology that allows a single physical CPU core to act as two logical cores, improving CPU utilization, but it does not address memory allocation beyond physical limits.

Concept tested: Virtualization memory overcommitment

Source: https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/manage/use-dynamic-memory-on-a-hyper-v-virtual-machine

Topics

#Memory overcommitment#Virtual machine provisioning#Hypervisor features

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