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| Section | Objectives |
|---|---|
| Topic 1: Describe Nutanix Platform Administration | - Identify virtual networking tasks - Describe virtual machine tasks - Discuss storage operations - Describe licensing tasks |
| Topic 2: Recognize Nutanix Solutions and Tools | - Recognize Nutanix solutions, use cases, and features of Nutanix Cloud Infrastructure (NCI) technologies - Recognize non-Nutanix Cloud Infrastructure (NCI) solutions, use cases, and features - Recognize use cases and features of Nutanix tools |
| Topic 3: Demonstrate and Understand Platform Health and Monitoring | - Leverage support functions - Review and interpret alerts and events - Review and interpret workload performance - Perform and interpret a health check |
| Topic 4: Describe Cluster Configuration and Maintenance | - Identify hardware maintenance tasks - Identify software maintenance tasks - Describe valid cluster options |
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NEW QUESTION # 11
Monitoring data shows stable CPU and memory usage, but a user VM remains slow.
Which area should be investigated next?
Answer: C
Explanation:
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 .
NEW QUESTION # 12
An administrator attempts to run a specific Nutanix Cluster Check (NCC) plugin from the Controller VM command line, but the check will not execute. The administrator discovers that this specific check was recently disabled by another user in the Prism web console.
Which action must the administrator take to successfully run this check from the command line?
Answer: C
Explanation:
When an NCC plugin has been administratively disabled, a normal command-line execution respects that disabled state and skips the plugin. To run that specific check without permanently changing its configured status in Prism, the administrator must append the --force_run=True argument to the NCC command. The flag instructs NCC to execute the selected plugin despite its disabled configuration.
Restarting the cluster health service does not change the plugin's enablement state and introduces an unnecessary service operation. Re-enabling the check in Prism Element could also permit execution, but it changes the persistent configuration and is not required when the objective is to run the check once from the command line. Running ncc health_checks run_all does not override the disabled state; the disabled plugin can still be omitted from the complete check set.
NCC supports running complete check groups, individual plugins, and command options that modify execution behavior. Administrators should use forced execution deliberately because a check may have been disabled due to environmental applicability, a known issue, or support guidance. Reference: NCC 5.2 - NCC Usage . NHCF alignment: executing and interpreting NCC health checks.
NEW QUESTION # 13
Which component is required to prevent split-brain scenarios on a two-node ROBO cluster?
Answer: D
Explanation:
A two-node cluster lacks the natural majority available in a conventional cluster containing three or more voting members. If communication between its two nodes is interrupted, each node could otherwise interpret the other node as failed and attempt to continue independently. That condition creates a split-brain risk because both sides could consider themselves authoritative.
The external Witness VM supplies the independent arbitration required for the two-node configuration. It is deployed in a separate failure domain and maintains communication with the cluster. During a node or communication failure, witness participation allows the cluster to distinguish the surviving authoritative side and avoid both nodes independently continuing cluster operations. Separating the witness from the two data- bearing nodes is critical because placing all voting components in the same failure domain would undermine the tie-breaking design.
Prism Element is the local cluster-management interface, while Prism Central provides centralized management across clusters. Neither substitutes for an independent quorum witness. Foundation Central supports centralized discovery and deployment activities and does not arbitrate two-node cluster ownership.
Nutanix documentation identifies the external Witness VM as part of the supported two-node ROBO configuration. References: Prism 7.5 - Two-Node Clusters and Witness for Two-Node Clusters . NHCF alignment: valid cluster configurations, availability, and failure handling.
NEW QUESTION # 14
An administrator runs a cluster health check and notices that a specific plugin returns a WARN status.
How should the administrator interpret this status?
Answer: B
Explanation:
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 .
NEW QUESTION # 15
Which Nutanix storage feature reduces space usage by eliminating identical data blocks?
Answer: D
Explanation:
Deduplication reduces storage consumption by identifying duplicate data blocks and consolidating them so that redundant physical copies do not need to be retained. AOS uses fingerprints to recognize eligible duplicate blocks. Capacity deduplication applies this process to persistent data within a storage container, reducing the physical space consumed by workloads containing substantial repeated content.
Compression is different: it encodes a data block into a smaller representation but does not eliminate identical blocks by replacing them with a shared instance. Erasure Coding reduces the storage overhead associated with maintaining replicated cold data by substituting parity information for certain redundant copies. It is a resilience and capacity-efficiency mechanism, not duplicate-block elimination. Capacity Tiering concerns placement across storage tiers and does not consolidate identical content.
Deduplication should be enabled selectively because fingerprint generation and metadata processing introduce overhead. It is most beneficial for workloads with significant duplicate data, such as appropriate persistent- desktop or full-clone environments. Workloads already using space-efficient Nutanix clones may receive limited additional benefit.
The defining phrase in the question is "eliminating identical data blocks," which is the standard function of deduplication.
NHCF/NCA reference: AOS storage efficiency, capacity deduplication, compression, and erasure coding.
Official references: Deduplication and Storage Components .
NEW QUESTION # 16
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