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| Section | Objectives |
|---|---|
| Topic 1: Describe Cluster Configuration and Maintenance | - Identify hardware maintenance tasks - Describe supported cluster configuration options - Identify software maintenance tasks |
| Topic 2: Demonstrate and Understand Platform Health and Monitoring | - Review and interpret workload performance - Review and interpret alerts and events - Perform and interpret health checks - Leverage support functions |
| Topic 3: Recognize Nutanix Solutions and Tools | - Recognize non-NCI Nutanix technologies, features, and use cases - Recognize Nutanix tools, features, and use cases - Recognize Nutanix Cloud Infrastructure (NCI) technologies, features, and use cases |
| Topic 4: Describe Nutanix Platform Administration | - Describe virtual machine administration tasks - Discuss storage operations - Describe licensing tasks - Identify virtual networking tasks |
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NEW QUESTION # 74
What node type can be part of a Nutanix HCI cluster but will not run user virtual machines?
Answer: C
Explanation:
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 .
NEW QUESTION # 75
An administrator needs to ensure that business-critical VMs maintain normal CPU performance.
Which action can the administrator take to generate alerts when VMs are oversubscribed during peak hours?
Answer: D
Explanation:
CPU Ready Time measures the percentage of time that a VM's virtual CPUs are ready to execute but cannot be scheduled on physical CPU resources. It is therefore a direct indicator of processor contention or CPU oversubscription. A VM can show moderate CPU utilization while still suffering poor response times because its vCPUs are waiting for execution time.
Prism Central supports user-defined alert policies based on infrastructure metrics, including VM CPU Ready Time. The administrator can define a threshold and evaluation period so that an alert is generated when scheduling delays exceed an acceptable level during peak demand. This produces proactive notification instead of requiring periodic manual review.
Pulse sends diagnostic information to Nutanix Support but does not create the workload-specific threshold requested. Increasing vCPU allocation without first validating contention may worsen CPU Ready Time because the hypervisor must schedule additional virtual processors. Reviewing average CPU usage is retrospective and does not automatically generate an alert. The most precise control is therefore a custom CPU Ready alert. References: Prism Central 7.5 - Alert Metrics and Intelligent Operations - Chart Metrics .
NEW QUESTION # 76
Which tool tests how a Nutanix environment will behave under a simulated production load?
Answer: C
Explanation:
Nutanix X-Ray is an automated testing and benchmarking framework that runs repeatable scenarios against hyperconverged infrastructure targets. It uses realistic workload generators and controlled infrastructure events to evaluate performance, resilience, scalability, data integrity, and availability. Its scenarios can simulate conditions such as VM cloning, snapshots, migrations, node failures, node power-offs, and sustained storage workloads.
X-Ray is intended for evaluation and test environments rather than active production clusters. The resulting metrics and reports allow architects and administrators to compare configurations and determine how an environment behaves under representative production-style demand and failure conditions.
Nutanix Move migrates workloads between supported platforms and does not benchmark infrastructure behavior. Nutanix Collector gathers environmental information for assessment and sizing activities but does not generate simulated application loads. Nutanix Foundation images nodes and deploys or configures clusters; it is not a performance-testing framework.
The requirement to test behavior under simulated load therefore maps directly to X-Ray's scenario-based testing model. References: Nutanix X-Ray FAQ and X-Ray 4.4 - Test Scenarios . NHCF alignment:
identifying Nutanix assessment, deployment, migration, and testing tools.
NEW QUESTION # 77
On which entity is Replication Factor configured?
Answer: D
NEW QUESTION # 78
Which number of node(s) can be placed into maintenance mode at the same time in a cluster?
Answer: D
Explanation:
Nutanix permits only one node per cluster to be placed in maintenance mode at a time. This restriction protects cluster availability and ensures that sufficient compute, storage and metadata services remain operational while maintenance is performed. Before entering maintenance mode, Prism verifies whether the cluster has adequate resiliency and whether the workloads hosted by the node can be evacuated or otherwise handled safely.
For AHV, the maintenance workflow migrates eligible user VMs to other available hosts. The Controller VM on the affected node is then placed into an appropriate maintenance state so that storage services can continue through the remaining CVMs. Attempting to maintain multiple nodes simultaneously could exceed the cluster' s fault-tolerance capability, particularly if another unplanned node or disk failure occurs during the procedure.
The limitation is cluster-wide, not one node per hardware block. The absence of powered-on VMs also does not authorize every node to enter maintenance mode because AOS storage and cluster-control services still depend on quorum and service availability.
NHCF/NCA reference: Cluster maintenance, node maintenance, resiliency and hardware-maintenance procedures; NCA Section 3, "Identify hardware maintenance tasks." Official references: Prism 7.5-Node Maintenance Mode , AOS 7.5-ESXi Node Maintenance .
NEW QUESTION # 79
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