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| Section | Objectives |
|---|---|
| Demonstrate and Understand Platform Health and Monitoring | - Review and interpret workload performance - Perform and interpret a health check - Review and interpret alerts and events - Leverage support functions |
| Describe Cluster Configuration and Maintenance | - Identify software maintenance tasks - Identify hardware maintenance tasks - Describe valid cluster options |
| Recognize Nutanix Solutions and Tools | - Recognize use cases and features of Nutanix tools - Recognize non-Nutanix Cloud Infrastructure (NCI) solutions, use cases, and features - Recognize Nutanix solutions, use cases, and features of Nutanix Cloud Infrastructure (NCI) technologies |
| Describe Nutanix Platform Administration | - Discuss storage operations - Describe virtual machine tasks - Describe licensing tasks - Identify virtual networking tasks |
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問題 #14
A volume group is a collection of which components?
答案：B
解題說明：
A Nutanix volume group is a collection of logically related virtual disks, also described as vDisks or volumes.
The group provides block-storage resources that can be attached directly to guest VMs or presented through iSCSI to supported consumers. Grouping the disks allows them to be administered, attached, protected, cloned, and managed as a related storage entity.
A storage pool aggregates physical storage capacity contributed by cluster nodes. Storage containers are logical subdivisions created within a storage pool and hold virtual disks. Consequently, a volume group can use vDisks created on Nutanix storage, but it is not a collection of pools or containers. Controller VMs run the distributed storage and cluster services on individual nodes and are unrelated to volume-group membership.
Each volume group has its own name and UUID, and administrators can add or remove virtual disks according to platform limitations. A group may be associated with one or more consumers depending on the attachment mode and supported use case. This structure is particularly suitable for applications requiring shared block devices, direct iSCSI access, or multiple related application volumes. References: Prism - Volume Group Configuration and Prism Central - Storage Components . NHCF alignment: volume groups and block-storage operations.
問題 #15
What resource should be used to ensure a successful upgrade of the hypervisors and AOS within a vSphere- based Nutanix cluster?
答案：A
解題說明：
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 .
問題 #16
What crucial step must be taken before successfully stopping a Nutanix cluster?
答案：C
解題說明：
All guest virtual machines must be shut down before stopping a Nutanix cluster. A cluster shutdown terminates the AOS services provided by the Controller VMs and ultimately shuts down the hypervisor hosts.
Leaving user workloads running would expose those VMs to abrupt power loss, interrupted write operations and possible application or filesystem corruption.
The supported sequence begins with a controlled shutdown of the guest operating systems. Administrators should verify that no user VMs remain powered on, check cluster health and then execute the supported cluster-stop procedure. The cluster process coordinates the shutdown of AOS services and Controller VMs; therefore, administrators must not manually power off every CVM as the first action.
Disabling the Remote Support Tunnel has no bearing on the safe shutdown of storage and compute services.
Protection domains generally do not need to be disabled for an ordinary cluster shutdown, although synchronous-replication configurations can require additional site-specific preparation.
NHCF/NCA reference: Cluster maintenance, controlled shutdown and service-management procedures; NCA Section 3, "Identify hardware maintenance tasks." Official references: AHV-Shutting Down a Cluster , Shutting Down DR Clusters .
問題 #17
An administrator has identified and resolved a critical alert on the health dashboard.
What should the administrator do to confirm the alert/issue has been resolved?
答案：A
解題說明：
The administrator should rerun the relevant Nutanix Cluster Check after completing the corrective action.
NCC evaluates cluster configuration, services, hardware and operational conditions against Nutanix-defined health criteria. A new PASS or appropriate INFO result provides technical confirmation that the underlying condition no longer exists.
Refreshing the Prism Element dashboard only reloads the displayed information. It does not independently retest the component or service that generated the alert. Deleting an email notification has no effect on the alert or cluster state. Manually marking an alert as resolved changes its administrative status but does not prove that the underlying fault has been corrected. Doing so without validation could conceal an active problem.
If the rerun produces WARN, FAIL or ERR rather than PASS or INFO, the administrator must review the new output and continue remediation. For a narrowly scoped issue, the relevant NCC check can be selected; a broader health review may justify running the complete NCC suite.
NHCF/NCA reference: Cluster Health-running NCC, interpreting results and validating remediation; NCA Section 4, "Perform and interpret a health check." Official references: Prism 7.5-Running NCC , Prism 7.5- Health Monitoring .
問題 #18
Which security option should be implemented to ensure that all intra-cluster communication is secured?
答案：C
解題說明：
Network Encryption is the security control directed at protecting data while it traverses the network between Nutanix cluster components. It provides cryptographic confidentiality and integrity for supported intra-cluster traffic, preventing captured traffic from being interpreted or modified without detection. In AOS 7.5, the documented intra-cluster data-in-transit encryption capability specifically covers Stargate storage traffic.
Accordingly, the examination wording should be interpreted as asking which option cryptographically secures intra-cluster communications, for which Network Encryption is the only valid choice.
Network Segmentation serves a different purpose. It isolates traffic categories-such as management, backplane, or replication traffic-onto separate networks. Segmentation can reduce exposure and limit broadcast or failure domains, but isolated traffic is not necessarily encrypted. Cluster Lockdown restricts administrative access, particularly access paths involving hosts and Controller VMs; it does not encrypt packets moving between cluster services. "vSwitch Lockdown" is not the relevant Nutanix data-in-transit security mechanism.
The decisive distinction is therefore encryption versus isolation or access restriction. If the requirement is that intercepted traffic must remain unreadable, an encryption capability is required. Segmentation may complement that control, but cannot replace it.
NHCF/NCA reference: Nutanix security architecture, data-in-transit protection, and cluster network configuration. Official references: Data-in-Transit Encryption and Segmented Network Traffic Types .
問題 #19
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