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| Section | Objectives |
|---|---|
| Topic 1: Describe Cluster Configuration and Maintenance | - Hardware maintenance procedures - Valid cluster configuration options - Software updates and Life Cycle Management (LCM) |
| Topic 2: Demonstrate and Understand Platform Health and Monitoring | - Alerts, events, and performance monitoring - Cluster health checks and resiliency status - Support case creation and diagnostic tools |
| Topic 3: 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 4: Describe Nutanix Platform Administration | - Storage operations and licensing management - Basic virtual networking configuration - Virtual machine management tasks |
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問題 #82
Monitoring data shows stable CPU and memory usage, but a user VM remains slow.
Which area should be investigated next?
答案：A
解題說明：
Once CPU consumption, CPU contention and memory utilization have been reviewed and found stable, storage latency becomes the next relevant performance domain. A VM can have adequate compute resources yet remain slow because guest read or write operations are waiting for the storage path. High latency may arise from workload contention, abnormal I/O patterns, a storage-controller issue, or an underlying infrastructure condition.
Prism exposes VM and infrastructure metrics including IOPS, bandwidth, read latency, write latency and total I/O latency. The administrator should correlate the VM's latency with its IOPS and throughput, then compare those values with storage-container, host and cluster-level metrics over the same interval. This determines whether the delay is isolated to the VM or reflects a broader storage condition.
License expiration may affect access to licensed features, but it is not the primary diagnostic explanation for an actively running VM's I/O responsiveness. RBAC controls administrative permissions rather than guest workload performance. Container sizing is not a standard immediate troubleshooting metric; the measurable symptom to examine first is latency.
NHCF/NCA reference: Cluster Performance-analysis charts, reports and workload-performance interpretation; NCA Section 4, "Review and interpret workload performance." Official references: Prism 7.5- Performance Monitoring , Prism Central 7.5-VM Summary Metrics .
問題 #83
How many Controller VMs (CVMs) will a five-node HCI cluster have?
答案：D
解題說明：
A conventional five-node Nutanix HCI cluster has five Controller VMs-one CVM running on each node.
AOS operates as a distributed storage and data-services system rather than relying on a single centralized storage controller. The per-node CVM architecture provides local access to the node's storage devices while cooperating with the CVMs on the other nodes to form the distributed AOS storage fabric.
The CVMs collectively provide services associated with data placement, replication, metadata, caching, compression, deduplication, snapshots, and cluster storage management. If a CVM becomes unavailable, the host can access storage services through another CVM, subject to cluster health and connectivity. The remaining CVMs also maintain the distributed cluster services required for continued operation.
The number of CVMs therefore normally matches the number of HCI nodes: three nodes produce three CVMs, four nodes produce four, and five nodes produce five. The count does not represent the replication factor or the number of simultaneously tolerated failures.
Compute-only nodes are a specific exception because they do not run a CVM. However, the question explicitly describes a five-node HCI cluster, so each node contributes storage and runs a Controller VM.
NHCF/NCA reference: Nutanix HCI architecture, AOS, nodes, and Controller VMs. Official references:
Infrastructure Resilience and Compute-Only Nodes .
問題 #84
What does the Nutanix Remote Support Tunnel allow?
答案：D
解題說明：
The Remote Support Tunnel establishes a controlled remote connection through which authorized Nutanix Support personnel can access a cluster and assist with diagnosis and troubleshooting. The customer retains control over whether the tunnel is enabled, and it can be opened for a defined period rather than operating as an unrestricted permanent connection. Nutanix documentation describes the feature as a remote support connection and allows administrators to start the tunnel for a limited duration.
The tunnel is part of the support workflow rather than a workload data service. Moving applications from an on-premises environment to a public cloud is handled through migration products and hybrid-cloud mobility capabilities such as Nutanix Move or Nutanix Cloud Clusters workflows. Replication between sites is provided through protection policies, protection domains, recovery plans, or other disaster-recovery services.
Encryption or isolation between guest VMs is addressed through virtual networking, security policies, and microsegmentation-not the support tunnel.
The decisive distinction is the tunnel's administrative purpose: it gives Nutanix technical support temporary connectivity to investigate cluster problems. Reference: Prism 7.5 - Remote Support Connections . NHCF alignment: leveraging Nutanix support functions and troubleshooting services.
問題 #85
Which statement best describes the requirement for migrating a vDisk between storage containers in Nutanix AOS?
答案：B
解題說明：
AOS supports live vDisk migration between storage containers while the vDisk remains attached to a powered-on guest VM. The VM does not need to be shut down or deleted. This capability allows administrators to move individual vDisks or all eligible vDisks associated with a VM to a container providing different storage settings.
Storage-container properties can include replication factor, encryption, compression, deduplication, and erasure coding. Migrating a vDisk to another container is therefore a controlled method of changing the storage characteristics applied to that disk without interrupting the running workload.
The operation does not require cluster maintenance mode, and existing snapshots do not universally need to be deleted. However, important restrictions apply. Migration cannot proceed when an applicable Prism Central storage policy is configured for the associated VM. Protected VMs may also need to be removed from their protection domain or protection policy before migration. The target container must have sufficient free capacity, and operations such as cloning, resizing, or taking new snapshots may be blocked while migration is active.
The essential requirement tested is that the VM may remain powered on during the storage-container migration.
NHCF/NCA reference: Storage operations, vDisk placement, storage containers, and live migration. Official references: Live vDisk Migration , Migrating a vDisk , and Storage Policy Limitation .
問題 #86
Where should a support ticket be opened with Nutanix?
答案：B
解題說明：
A Nutanix support ticket should be opened from the case-management area of the Nutanix Smart Support or Support Portal by navigating to Cases and selecting the option to create or open a case. This location provides access to existing cases, entitlement and asset information, severity selection, problem descriptions, and diagnostic uploads.
The Account area is used for account-related administration and is not the normal navigation path for submitting a technical case. Prism Element also does not provide a User-menu path named Create Case, eliminating option A.
Current Prism Central releases can expose support-case functionality, but the documented navigation is through the Help icon and Create Support Case-not through the User menu stated in option C. Therefore, option C is incorrect as written even though Prism Central may integrate with Nutanix Support.
When creating the case, the administrator should provide the affected cluster or asset, AOS and hypervisor versions, severity, business impact, recent changes, timestamps, and relevant logs. Accurate case classification and diagnostic information reduce investigation time.
NHCF/NCA reference: Smart Support, Nutanix Support Portal, case creation, and support tools. Official references: Getting Started with Nutanix Support , Accessing the Support Portal , and Creating a Support Case
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問題 #87
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