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Home Nutanix NCP-MCI v6.5

Nutanix NCP-MCI v6.5 Exam Practice Questions (P. 3)

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Question #11
An administrator is troubleshooting vDisk performance issues in a Nutanix cluster with hybrid disks. The VMs all have Flash Mode enabled, but users are reporting disk latency.
What could cause these performance issues?
  1. A
    Data size for flash mode exceeds 25% of the SSD capacity.
  2. B
    The VMs vDisks are in multiple containers.
  3. C
    Hash mode is disabled when a node fails.
  4. D
    Compression is disabled on the vDisk storage container.

Correct Answer:
A
chatbot-img GPT-4o - Answer
Absolutely right, option A points directly to the root of our problem. When the data utilized for flash mode surpasses 25% of the SSD's capacity in a Nutanix cluster, we typically notice a performance dip. This happens because exceeding this limit can impede the SSD's ability to serve hot data efficiently, which is essential in maintaining low latency and high performance. Always ensure that the data allocated to flash mode remains within this capacity to prevent such issues.

Question #12
While installing Windows 2019 on a new VM on an AHV cluster, an administrator notices there aren't any drives listed for the install.
What might the problem be?
  1. A
    VirtIO drivers must be installed on AHV for installations of Windows.
  2. B
    VirtIO drivers aren't supported on this version of Windows 2019.
  3. C
    VirtIO drivers have not yet been installed and the disks are SCSI disks.
  4. D
    VirtIO drivers have not yet been installed and the disks are IDE disks.

Correct Answer:
A
chatbot-img GPT-4o - Answer
The confusion stems from the role of VirtIO drivers during Windows installation on a Nutanix AHV. These drivers are indeed crucial and must be made available during the OS installation, as they are not pre-installed in AHV or the Windows OS itself. VirtIO drivers, which include support for SCSI Controller among others, must be loaded by attaching the VirtIO ISO to the VM. This enables the VM to recognize the virtual drives presented by AHV and proceed with the installation. Without these drivers, the system won’t display any drives to install the OS on, reinforcing the correct response as option A.

Question #13
An administrator is setting up a Nutanix cluster and needs to configure the default VLAN.
Which configuration should the administrator choose?
  1. A
    vlan.0
  2. B
    vlan.1
  3. C
    vlan.2
  4. D
    vlan.7

Correct Answer:
B
chatbot-img GPT-4o - Answer
When configuring the default VLAN for a Nutanix cluster, it's important to recognize that the standard default VLAN is VLAN 1, not VLAN 0. This can quite easily lead to confusion, as many network systems commonly use VLAN 1 as the default. Selecting VLAN 1 enables operational flexibility across a majority of switch environments, which commonly default to this setting as well, ensuring compatibility and minimizing configuration errors.

Question #14
During an AHV upgrade, an administrator finds that a critical VM was powered off rather than migrating to another host.
Which scenario explains this behavior?
  1. A
    No AHV hosts were able to be scheduled.
  2. B
    The VM was on the same host as the acropolis leader.
  3. C
    The VM OS hung during migration.
  4. D
    The VM was marked as an agent VM.

Correct Answer:
D
chatbot-img GPT-4o - Answer
Absolutely, the correct answer, D, is bang on. The unique thing about agent VMs is that they're always tied to a specific host in the AHV cluster. So, when you're doing maintenance like an upgrade, these VMs don't play the typical migration game. They're simply powered down and will kick back into action on the same hardware once the host is ready and roaring to go. No bouncing around between hosts for these special agents!

Question #15
An administrator wants to receive an environment summary report when a host failure occurs.
Which action would address the administrator's need?
  1. A
    Create a playbook
  2. B
    Enable App Discovery
  3. C
    Edit report schedule
  4. D
    Configure an alert policy

Correct Answer:
D
chatbot-img GPT-4o - Answer
The correct answer is D, which involves configuring an alert policy to send out an environment summary report when a host fails. This approach ensures that the administrator is promptly informed about the host's status and other critical details pertinent to the infrastructure at the moment of failure. This proactive notification mechanism is essential for quick response and effective management of the datacenter environment. While a playbook (Answer A) can indeed perform similar actions, configuring an alert policy directly addresses the requirement more efficiently and with less complexity.

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