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| Section | Objectives |
|---|---|
| Demonstrate and Understand Platform Health and Monitoring | - Review and interpret workload performance - Perform and interpret a health check - Leverage support functions - Review and interpret alerts and events |
| 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 |
| Describe Cluster Configuration and Maintenance | - Identify hardware maintenance tasks - Describe valid cluster options - Identify software maintenance tasks |
| Describe Nutanix Platform Administration | - Discuss storage operations - Describe licensing tasks - Describe virtual machine tasks - Identify virtual networking tasks |
NutanixのNCA-7.5認定試験を受験するあなたは、試験に合格する自信を持たないですか。それでも恐れることはありません。TopexamはNCA-7.5認定試験に対する最高な問題集を提供してあげますから。Topexamの NCA-7.5問題集は最新で最全面的な資料ですから、きっと試験に受かる勇気と自信を与えられます。これは多くの受験生に証明された事実です。
質問 # 58
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?
正解：D
解説：
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 .
質問 # 59
A VM shows increasing CPU Ready values while overall CPU usage remains unchanged.
What does this behavior suggest?
正解：C
解説：
CPU Ready measures the time during which a virtual CPU is ready to execute but cannot be scheduled on a physical CPU. Increasing CPU Ready while the VM's actual CPU usage remains unchanged indicates that the workload wants processor time but the hypervisor cannot schedule it promptly. This most commonly points to host CPU contention, oversubscription, or effectively exhausted CPU scheduling capacity.
This condition is not evidence that the VM lacks assigned vCPUs. Adding more vCPUs can make the problem worse because the hypervisor may have greater difficulty scheduling a larger virtual CPU configuration. The administrator should examine host CPU utilization, physical-core availability, CPU overcommitment, NUMA alignment, VM sizing, other high-demand VMs, and any CPU limits or affinity constraints.
Memory exhaustion produces different indicators, including swapping, ballooning, or elevated memory wait behavior. A full disk would affect storage capacity and possibly I/O latency but would not directly create CPU Ready time.
The wording "host CPU resources are exhausted" should be understood as unavailable or heavily contended physical scheduling capacity, not necessarily that every processor reports exactly 100% utilization. CPU Ready measures scheduling delay and can reveal contention that VM CPU usage alone does not expose.
NHCF/NCA reference: VM performance metrics, CPU contention, and troubleshooting resource constraints.
Official references: Interpreting CPU Ready Values , CPU Ready Time , and Prism Alert Metrics .
質問 # 60
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 # 61
Which bond type is the default for newly created AHV clusters?
正解：A
解説：
Active-Backup is the default bond configuration for newly created AHV clusters. In this mode, one physical uplink actively forwards traffic while another eligible uplink remains available as a standby. If the active link fails, AHV moves traffic to the backup link, providing straightforward network redundancy without requiring LACP or a switch-side link-aggregation configuration.
The principal advantage of Active-Backup is operational compatibility. Because only one uplink forwards traffic at a given time, the upstream switch ports do not need to be combined into a link aggregation group.
However, the configuration does not aggregate the bandwidth of multiple physical NICs during normal operation.
Balance-slb provides active-active source load balancing using MAC pinning and can improve aggregate host bandwidth without requiring LACP. Balance-tcp uses active-active LACP and requires matching configuration on the physical switches. Both are deliberately configured alternatives rather than the default.
"No Uplink Bond" would eliminate bond-level redundancy and is not the standard newly created cluster configuration.
NHCF/NCA reference: AHV networking basics, virtual switches, uplinks and bond types; NCA Section 2,
"Identify virtual networking tasks." Official references: Prism 7.5-Network Configuration , Prism Central- Creating a Virtual Switch .
質問 # 62
Which task must be performed first when preparing to upgrade an Internet-connected Nutanix cluster using Life Cycle Manager?
正解：A
解説：
The administrator must first run an LCM inventory. Inventory establishes the cluster's current software and firmware state, refreshes component metadata, and obtains information about compatible updates available through the connected Nutanix source. LCM requires this baseline before it can accurately identify upgrade candidates and construct a valid update plan.
Executing an upgrade immediately is premature because LCM must first know which component versions are installed and which update combinations are supported. The upgrade workflow subsequently performs dependency evaluation and prechecks before applying selected components. Directly uploading software bundles is principally associated with dark-site or disconnected workflows. An Internet-connected cluster can retrieve the required metadata and available bundles through its configured online source. Restarting cluster services is neither the initial preparation step nor a normal manual prerequisite for LCM discovery.
Inventory also refreshes the LCM framework when required and makes the resulting component information available in the management interface. After inventory completes, the administrator reviews available updates, selects applicable components, executes prechecks, resolves reported issues, and then initiates the upgrade plan. This sequence minimizes compatibility and dependency risks.
NHCF/NCA reference: Life Cycle Manager, connected-site operation, inventory, prechecks, and upgrade planning. Official references: Performing LCM Inventory and Pre-Upgrade Configurations and Recommendations .
質問 # 63
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