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Virtual Machine Management Flashcards

7 cards from real NCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Virtual Machine Management flashcards as text

  1. Which memory overcommit feature in AHV allows more vRAM to be allocated across VMs than the physical RAM available on a host?

    Answer: Memory Overcommit is not supported in AHV

    AHV does not support memory overcommit; each VM's allocated memory must be backed by physical RAM on the host, ensuring predictable performance.

  2. In Nutanix Prism, what metric is used to measure the actual storage I/O performance of a VM at a given moment?

    Answer: IOPS (Input/Output Operations Per Second)

    IOPS is the primary metric displayed in Prism to measure how many read and write operations a VM is performing per second.

  3. What is the purpose of the 'Guest Customization' feature when deploying VMs from templates in Nutanix?

    Answer: Configures unique host settings like hostname, IP, and SID during first boot

    Guest Customization (Sysprep for Windows, cloud-init for Linux) automatically configures VM-specific settings like hostname and network during the first boot.

  4. Which Nutanix feature allows administrators to set minimum, maximum, and burst resource limits for VM CPU and memory?

    Answer: VM Resource Policies

    VM Resource Policies in Nutanix allow administrators to define minimum guaranteed resources, maximum caps, and burst limits for individual VMs.

  5. When performing a VM disk hot-add in AHV, what is a key requirement for the operation to succeed without a reboot?

    Answer: The guest OS must support SCSI hot-plug and have appropriate drivers

    Hot-adding a disk without rebooting requires the guest OS to support SCSI hot-plug, which modern Windows and Linux distributions typically support with appropriate drivers.

  6. In Nutanix AHV, what is the role of the 'VirtIO' driver within guest VMs?

    Answer: Enables paravirtualized high-performance network and disk I/O

    VirtIO is a paravirtualization framework that provides guest VMs with high-performance network and disk drivers, significantly improving I/O throughput in AHV.

  7. What Nutanix capability allows a VM running on one cluster to be migrated to another cluster with minimal downtime?

    Answer: Cross-Cluster Live Migration via Nutanix Move

    Nutanix Move (formerly Xtract) facilitates cross-cluster and cross-hypervisor VM migrations with minimal downtime using change block tracking.