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| Section | Objectives |
|---|---|
| Topic 1: Demonstrate and Understand Platform Health and Monitoring | - Cluster health checks and resiliency status - Alerts, events, and performance monitoring - Support case creation and diagnostic tools |
| Topic 2: Recognize Nutanix Solutions and Tools | - Use cases and features of Nutanix management and operational tools - Nutanix solutions, use cases, and features of Nutanix Cloud Infrastructure (NCI) Technologies |
| Topic 3: Describe Cluster Configuration and Maintenance | - Software updates and Life Cycle Management (LCM) - Hardware maintenance procedures - Valid cluster configuration options |
| Topic 4: Describe Nutanix Platform Administration | - Basic virtual networking configuration - Virtual machine management tasks - Storage operations and licensing management |
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23. Frage
An organization has determined that a specific NCC check can be disregarded and does not want to see the alert.
Where would an administrator turn off the relevant NCC check?
Antwort: A
Begründung:
The relevant NCC check should be disabled from the Prism Element web console. For a Prism Element cluster, administrators manage NCC checks through the Health dashboard. The Actions menu provides check- management functions, including selecting individual checks and controlling whether they remain enabled.
This is different from acknowledging or resolving an existing alert. Acknowledgement records that the alert has been reviewed, while disabling the underlying check prevents it from continuing to run and generate the unwanted condition. The administrator should disable a check only after confirming that it is genuinely inapplicable or that Nutanix has documented the condition as safe to disregard.
Nutanix states that after a check is disabled through the Prism web console, it cannot be run through the NCC command line until it is re-enabled in the web console. Therefore, running a command on a CVM is not the correct method for managing the persisted disabled state presented in the question. Prism Central can initiate broader troubleshooting and cluster-check workflows, but the relevant per-cluster check configuration is maintained through Prism Element.
The disabled check and the justification should be documented because suppressing a valid health check can conceal operational risk.
NHCF/NCA reference: NCC check management, Prism Element Health dashboard, and alert suppression.
Official references: Displaying and Managing NCC Checks , Running NCC , and NCC Guide .
24. Frage
An administrator is troubleshooting resource availability within the cluster. As part of the troubleshooting, the administrator wants to build a list of powered-off VMs on the Nutanix cluster.
In order for these VMs to be listed in the Prism Central VM Efficiency widget, how many days must the VMs be powered off to be considered a Dead VM?
Antwort: D
Begründung:
Prism Central classifies a virtual machine as a Dead VM after it has remained powered off for at least 30 days. The VM Efficiency capability uses this duration to distinguish temporarily stopped workloads from VMs that are sufficiently inactive to justify administrative review. Consequently, a VM powered off for only
5 or 15 days does not meet the classification threshold, while 45 days exceeds-but does not define-the required minimum.
A Dead VM is not automatically deleted. The classification is an efficiency finding intended to identify resources that may no longer be required. Even while powered off, the VM can continue consuming storage through its virtual disks, snapshots, recovery points, and associated configuration objects. Administrators should therefore validate application ownership, retention requirements, protection policies, and compliance obligations before deleting or archiving it.
The VM Efficiency widget is part of Prism's broader behavioral and capacity-optimization functionality.
Other inefficiency classifications can identify overprovisioned or constrained VMs by evaluating historical resource behavior. The 30-day rule is specifically associated with the powered-off Dead VM condition and should not be confused with utilization-based efficiency findings.
NHCF/NCA reference: Prism Central monitoring, VM efficiency, resource optimization, and behavioral analysis. Official reference: Behavioral Learning Tools and VM Efficiency , specifically the Dead VM classification.
25. Frage
What node type can be part of a Nutanix HCI cluster but will not run user virtual machines?
Antwort: C
Begründung:
A Nutanix storage-only node contributes storage capacity and storage-processing resources to a cluster but is deliberately prevented from hosting guest or user virtual machines. Nutanix documents storage-only nodes as unschedulable for guest workloads. This separation allows an organization to expand storage independently when additional compute capacity is unnecessary.
A storage-only node remains part of the distributed AOS storage architecture and participates in relevant cluster services. Its defining restriction is that the hypervisor scheduler does not place user VMs on it. Storage- only configurations are supported with specified hypervisors and hardware platforms, subject to the applicable compatibility and configuration requirements.
A compute-only node has the opposite purpose: it adds compute resources and can run application VMs but does not provide the conventional local AOS storage contribution or Controller VM found on an HCI node. A standard HCI node contributes both compute and storage and can host user workloads. "Worker" is principally a Kubernetes node role rather than the Nutanix HCI node type described by this question.
NHCF/NCA reference: Introduction and Storage Concepts-Nutanix node roles, cluster architecture and scale-out options; NCA Section 3, "Describe valid cluster options." Official references: Prism 7.5-Storage- Only Nodes , AHV-Adding a Storage-Only Node .
26. Frage
LCM provides which two features for firmware and software updates? (Choose two.)
Antwort: C,D
Begründung:
Life Cycle Manager provides automatic dependency management and a one-click update workflow for supported Nutanix software and hardware firmware. LCM inventories the environment, identifies installed component versions, retrieves compatible update metadata, and evaluates dependencies between components before permitting an upgrade. This prevents administrators from manually determining the correct order for related AOS, AHV, NCC, Foundation, firmware, and platform updates.
Nutanix describes the LCM workflow as a one-click update because administrators can select eligible components and initiate an orchestrated upgrade through Prism. LCM then performs prechecks, stages packages, applies updates in the necessary sequence, and coordinates node maintenance while preserving cluster availability where supported.
A general rollback to the previous software or firmware version is not an LCM feature. Upgrades should therefore be treated as forward-moving maintenance operations that require validated backups, health checks, and compatibility review. Although LCM supports numerous qualified hardware platforms, option C is not the core feature being tested. Platform support depends on the hardware vendor, model, firmware bundle, and Nutanix compatibility requirements; it is not an unrestricted multi-platform update function.
NHCF/NCA reference: LCM inventory, dependency handling, prechecks, and one-click maintenance. Official references: LCM Overview and Recommended Upgrade Order .
27. Frage
A VM shows increasing CPU Ready values while overall CPU usage remains unchanged.
What does this behavior suggest?
Antwort: D
Begründung:
CPU Ready measures the time during which a virtual CPU is ready to execute but cannot be scheduled on a physical CPU. Increasing CPU Ready while the VM's actual CPU usage remains unchanged indicates that the workload wants processor time but the hypervisor cannot schedule it promptly. This most commonly points to host CPU contention, oversubscription, or effectively exhausted CPU scheduling capacity.
This condition is not evidence that the VM lacks assigned vCPUs. Adding more vCPUs can make the problem worse because the hypervisor may have greater difficulty scheduling a larger virtual CPU configuration. The administrator should examine host CPU utilization, physical-core availability, CPU overcommitment, NUMA alignment, VM sizing, other high-demand VMs, and any CPU limits or affinity constraints.
Memory exhaustion produces different indicators, including swapping, ballooning, or elevated memory wait behavior. A full disk would affect storage capacity and possibly I/O latency but would not directly create CPU Ready time.
The wording "host CPU resources are exhausted" should be understood as unavailable or heavily contended physical scheduling capacity, not necessarily that every processor reports exactly 100% utilization. CPU Ready measures scheduling delay and can reveal contention that VM CPU usage alone does not expose.
NHCF/NCA reference: VM performance metrics, CPU contention, and troubleshooting resource constraints.
Official references: Interpreting CPU Ready Values , CPU Ready Time , and Prism Alert Metrics .
28. Frage
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