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| Section | Objectives |
|---|---|
| Topic 1: Describe Cluster Configuration and Maintenance | - Describe valid cluster options - Identify software maintenance tasks - Identify hardware maintenance tasks |
| Topic 2: Demonstrate and Understand Platform Health and Monitoring | - Perform and interpret a health check - Review and interpret alerts and events - Review and interpret workload performance - Leverage support functions |
| Topic 3: Recognize Nutanix Solutions and Tools | - Recognize Nutanix solutions, use cases, and features of Nutanix Cloud Infrastructure (NCI) technologies - Recognize use cases and features of Nutanix tools - Recognize non-Nutanix Cloud Infrastructure (NCI) solutions, use cases, and features |
| Topic 4: Describe Nutanix Platform Administration | - Describe licensing tasks - Identify virtual networking tasks - Discuss storage operations - Describe virtual machine tasks |
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問題 #17
What TCP port is required to access the Prism Element GUI and view cluster information?
答案：A
解題說明：
Prism Element is accessed through HTTPS on TCP port 9440. An administrator connects to the cluster virtual IP address or an appropriate Controller VM address using a URL in the form https:// < cluster-or-CVM- address > :9440. After authentication, Prism Element provides cluster-level information and administrative functions for hardware, storage, VMs, alerts, health, upgrades, and configuration.
TCP 443 is the conventional HTTPS port used by many web applications, but it is not the standard Prism Element web-console port tested here. Ports 8080 and 8443 are also commonly used by other web applications or management interfaces but do not represent the default Prism Element GUI endpoint.
Port 9440 is also important for several Nutanix management-plane communications. For example, connectivity between Prism Central and registered Prism Element clusters requires access to the Controller VM or cluster virtual IP addresses on this port. Firewalls, access-control lists, proxy configurations, and security devices must therefore permit the required traffic between authorized management systems.
The use of HTTPS provides encrypted browser communication, but the administrator should still deploy trusted certificates, restrict management-network exposure, and apply role-based access controls.
NHCF/NCA reference: Prism Element access, management networking, and platform administration. Official references: Prism Element Web Console Guide and Prism Connectivity Requirements .
問題 #18
During a routine cluster review, an administrator observes that an NCC check has returned the following status:
ERR: The plugin timed out
What does this status indicate about the health check?
答案：A
解題說明：
An ERR status means that the NCC plugin failed to execute successfully. In this case, the plugin exceeded its allowed execution period and timed out. Because the check did not complete, NCC cannot determine whether the tested cluster component is healthy or unhealthy. Option C is therefore the accurate interpretation.
ERR must not be treated as equivalent to FAIL. A FAIL result indicates that the check executed and identified a condition that did not satisfy the required health criteria. By contrast, ERR describes a problem with the health-check execution itself. The administrator should review the accompanying message, verify the applicable services and connectivity, and rerun the check. Persistent execution errors may require collecting NCC logs or engaging Nutanix Support.
A warning or an unexpected but noncritical condition is represented differently. INFO supplies contextual information that does not constitute a failure, while WARN identifies a condition requiring review. The timeout result cannot validate the cluster's state, so the underlying area remains unconfirmed until the check completes successfully.
NHCF/NCA reference: Cluster Health-NCC result codes and health-check interpretation; NCA Section 4,
"Perform and interpret a health check." Official reference: Nutanix Cluster Check Guide .
問題 #19
Before a cluster with active licenses is decommissioned, what must be done to ensure the licenses are available to be applied to a new cluster?
答案：C
解題說明：
The active licenses must be reclaimed before the cluster is destroyed. Reclaiming or unlicensing the cluster releases its assigned entitlement so that the available capacity can be applied to another qualified Nutanix cluster. Nutanix explicitly lists license reclamation as a prerequisite for cluster destruction.
Destroying a cluster without first reclaiming its licenses can leave the entitlement associated with a cluster that no longer exists. The licenses are not guaranteed to return automatically merely because the underlying nodes were reimaged, removed, or decommissioned. This can prevent the organization from assigning the purchased capacity to the replacement environment and may require licensing remediation.
The proper workflow is to verify the cluster's current licensing state, use License Manager to reclaim or unlicense the applicable entitlement, confirm that the capacity has returned to the available license inventory, and only then proceed with cluster destruction. Nutanix Support may assist when a cluster is already inaccessible or was destroyed without reclamation, but contacting Support is not the standard required workflow.
Nutanix licenses are generally reusable and portable according to their applicable terms, so option C is also incorrect.
NHCF/NCA reference: License reclamation, cluster decommissioning, and License Manager. Official references: Destroying a Cluster and License Manager Guide .
問題 #20
What node type can be part of a Nutanix HCI cluster but will not run user virtual machines?
答案：C
解題說明：
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 .
問題 #21
Before physically removing a failing disk from a Nutanix node, what step must be completed in Prism Element?
答案：A
解題說明：
The disk must first be logically removed from the cluster through Prism Element. The administrator selects the disk, clicks Remove Disk and confirms the action. AOS then migrates any recoverable data away from the device and updates the cluster's storage metadata. The disk must not be physically removed until the process completes and the disk indicator in the hardware diagram turns red.
The red indicator confirms that AOS has finished the supported logical-removal workflow and that the disk is no longer participating as an active storage device. Physically extracting a disk before this state is reached can interrupt data migration, generate additional alerts and reduce cluster resiliency.
The cluster destroy command would destroy the cluster configuration and is entirely inappropriate for component replacement. Shutting down the CVM would unnecessarily remove storage-controller services from the node and can interfere with the evacuation process. Rebooting the AHV host neither removes the disk from AOS metadata nor confirms that data migration has completed.
NHCF/NCA reference: Hardware maintenance, disk replacement and storage-resiliency procedures; NCA Section 3, "Identify hardware maintenance tasks." Official references: Prism 7.5-Removing a Disk , Prism
7.5-Hardware Table View .
問題 #22
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