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| Section | Objectives |
|---|---|
| Demonstrate and Understand Platform Health and Monitoring | - Perform and interpret health checks - Leverage support functions - Review and interpret workload performance - Review and interpret alerts and events |
| Recognize Nutanix Solutions and Tools | - Recognize Nutanix tools, features, and use cases - Recognize Nutanix Cloud Infrastructure (NCI) technologies, features, and use cases - Recognize non-NCI Nutanix technologies, features, and use cases |
| Describe Cluster Configuration and Maintenance | - Describe supported cluster configuration options - Identify software maintenance tasks - Identify hardware maintenance tasks |
| Describe Nutanix Platform Administration | - Describe virtual machine administration tasks - Identify virtual networking tasks - Discuss storage operations - Describe licensing tasks |
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質問 # 89
What resource should be used to ensure a successful upgrade of the hypervisors and AOS within a vSphere- based Nutanix cluster?
正解：C
解説：
The Nutanix Compatibility and Interoperability Matrix must be consulted before upgrading AOS or the ESXi hypervisor in a vSphere-based Nutanix cluster. The matrix identifies supported combinations of AOS releases, ESXi versions, Prism components, hardware platforms and related software. This prevents the administrator from introducing a hypervisor release that the installed AOS version does not support.
Upgrade planning must consider the current and target versions together. If the target AOS version requires a different supported hypervisor level, the administrator must follow the prescribed upgrade order. Nutanix Lifecycle Manager and one-click upgrade workflows perform compatibility checks, but the matrix remains the authoritative planning resource for confirming the intended version combination.
Nutanix Validated Designs provide architectural and deployment guidance rather than an exhaustive version- compatibility decision. Hardware replacement documentation governs component service procedures. Partner Software Validation may establish support for particular third-party products, but it does not replace Nutanix' s platform compatibility matrix for AOS and ESXi.
NHCF/NCA reference: Life Cycle Management-inventory, software updates, upgrade planning and compatibility validation; NCA Section 3, "Identify software maintenance tasks." Official references: AOS
7.5-ESXi Host Upgrade , LCM-Recommended Upgrade Order .
質問 # 90
During cluster expansion, what network requirement must be met for the automatic discovery of new, unassigned factory-prepared nodes to succeed?
正解：C
解説：
Automatic discovery during cluster expansion depends on IPv6 multicast communication between the existing environment and the unassigned factory-prepared nodes. The physical switch must therefore allow the relevant IPv6 multicast packets to traverse the Layer 2 network used for discovery.
Factory-prepared nodes initially use IPv6 link-local addressing and multicast-based discovery so that Prism can locate them before final production addresses and cluster membership are assigned. If IPv6 is disabled on the applicable switch ports, filtered by the network or otherwise unable to pass between the nodes, automatic discovery fails. The administrator may then need to correct the network configuration or use an available manual-discovery procedure.
The requirement is not limited to AHV clusters; supported cluster-expansion workflows also exist for other Nutanix-supported hypervisors. IPv4 multicast is not the specified discovery mechanism. Pre-assigning static production IP addresses is also not required for discovering eligible factory-prepared nodes and may conflict with the intended preparation state.
NHCF/NCA reference: Cluster configuration, node discovery and cluster expansion prerequisites; NCA Section 3, "Describe valid cluster options." Official references: Prism Central 7.5-Cluster Expansion Prerequisites , Prism 7.5-Expanding a Cluster .
質問 # 91
An administrator runs a cluster health check and notices that a specific plugin returns a WARN status.
How should the administrator interpret this status?
正解：D
解説：
An NCC WARN status means the health-check plugin returned an unexpected value that requires administrator investigation. Nutanix states that a warning requires user intervention and should be resolved as soon as reasonably possible. A warning is significant, but it is distinct from an NCC failure indicating that the tested aspect is currently unhealthy.
The answer choices deliberately correspond to different NCC result classifications. Option A describes an execution error: the plugin did not run successfully and therefore cannot establish a valid PASS, INFO, WARN, or FAIL result. Option B describes a FAIL condition, where the tested cluster component or state is unhealthy and can require immediate corrective action. Option D describes INFO, in which the plugin returns an expected informational value that cannot be classified as a straightforward pass or failure.
Administrators should read the complete warning output because it normally identifies the affected check, entity, observed value, expected condition, and recommended remediation. The warning should then be correlated with Prism alerts, recent changes, and other NCC results. It must not be ignored merely because the cluster remains operational.
NHCF/NCA reference: Nutanix Cluster Check, health-check execution, and interpreting status results.
Official references: NCC Guide and Running NCC in Prism Element .
質問 # 92
When creating a new VLAN, what should be specified as the VLAN ID if a network interface uses the Native VLAN?
正解：B
解説：
In Nutanix AHV network configuration, VLAN ID 0 represents the native or untagged VLAN. Therefore, when a VM network interface must communicate through the native VLAN on the connected physical-switch port, the administrator specifies VLAN ID 0 while creating the VLAN-backed virtual network.
The native VLAN carries Ethernet frames without a conventional 802.1Q VLAN tag across the applicable switch connection. Nutanix uses the value 0 as the administrative representation for this untagged behavior. It does not mean that an ordinary production VLAN numbered zero is being created on the physical switch. The physical switch port and AHV uplink configuration must still agree on which traffic is treated as native or untagged.
VLAN ID 1 is commonly a switch default but is not Nutanix's required value for designating native-VLAN behavior. VLAN 255 is an otherwise ordinary numerical VLAN identifier and has no special native-VLAN meaning. VLAN 4096 is outside the usable IEEE 802.1Q VLAN range; Nutanix accepts VLAN identifiers through 4094 for normal tagged VLAN configurations.
NHCF/NCA reference: Networking-AHV networking terminology, VLAN-backed virtual networks and virtual network configuration; NCA Section 2, "Identify virtual networking tasks." Official reference: Prism
7.5-Creating a Basic VLAN Subnet .
質問 # 93
What is the purpose of NCC?
正解：D
解説：
Nutanix Cluster Check is cluster-resident diagnostic software that evaluates the health, configuration, and operational state of a Nutanix environment. NCC includes plugins and checks covering cluster services, storage, networking, hardware, hypervisor integration, data protection, security-related settings, and other platform dependencies. Its results identify passed checks, warnings, failures, and conditions that require administrative attention.
NCC is used during routine health validation, before and after upgrades, and when troubleshooting an active problem. Keeping NCC current is important because newer releases contain updated checks for current platform versions, supported configurations, and known failure conditions. Administrators can run broad check groups or individual plugins from Prism and the Controller VM command line.
VM migration between hypervisors is performed through Nutanix Move. Network microsegmentation is provided through Flow Network Security and related policy controls. Cluster imaging and deployment are handled through Foundation or Foundation Central. None of those functions represents NCC's role.
Nutanix defines NCC as software that helps diagnose cluster health and identify configurations qualified and recommended by Nutanix. Reference: Nutanix Cluster Check Guide . NHCF alignment: performing health checks, interpreting results, and preparing a cluster for maintenance or support investigation.
質問 # 94
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