NCP-AIO Exam Dumps - NVIDIA-Certified Professional Questions and Answers

Comprehensive and Detailed Explanation From Exact Extract:

Communication issues between UFM server and InfiniBand switches often result from misconfigured or missingsubnet manager configurationon the switches. The subnet manager controls fabric membership and routing, so verifying and correcting its setup is essential for proper UFM operation. Rebooting, adding GPUs, or disabling firewalls are less likely to resolve fabric-level communication problems.

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TheFleet Command Operatorrole is designed to provide users with read-only access to locations and dashboards while granting full read/write/admin rights for applications and deployments. This matches the described access requirements where the user can manage applications and deployments but only view locations and dashboards without modification rights. Other roles like Fleet Command Admin have broader permissions, Supporter has more limited access, and Viewer is primarily read-only for all resources.

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Comprehensive and Detailed Explanation From Exact Extract:

Before installing new versions of DOCA drivers on NVIDIA BlueField DPUs, it is required touninstall any previous versionsof DOCA drivers to prevent conflicts and ensure a clean upgrade. This ensures that the new installation is not affected by leftover files or configurations from earlier versions. Re-flashing firmware or disabling network interfaces is not always required before every driver installation. Rebooting the host system might be recommended after installation but is not a prerequisite before installing drivers.

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Comprehensive and Detailed Explanation From Exact Extract:

TheDOCA Telemetry Service (DTS)is used to monitor and verify the status and accessibility of services like BlueMan on NVIDIA DPUs. It provides telemetry data and health monitoring specific to the DPU and its services. System logs or dump files may provide indirect information but DTS is the targeted tool for this check.

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Comprehensive and Detailed Explanation From Exact Extract:

In Slurm cluster administration, the command to submit a batch job script is sbatch. This command schedules the job to be executed by the Slurm workload manager. The option -begin=tomorrow (or --begin=tomorrow) specifies the start time for the job execution, which in this case is set for tomorrow. The other commands have different purposes:

submit is not a valid Slurm command.

salloc is used to allocate resources interactively but does not submit batch jobs for scheduled execution.

srun runs jobs immediately on allocated resources but is typically used to launch tasks in an active job or interactively, not for batch job submission.

Therefore, the correct command to submit a batch job script for future execution is sbatch -begin=tomorrow.

Comprehensive and Detailed Explanation From Exact Extract:

For troubleshooting and performance optimization on NVIDIA DGX systems such as DGX H100, theNVIDIA System Management (nvsm)tool is used to gather system health and diagnostic data. The command nvsm dump health is the correct command to generate and export detailed system logs related to the health report of the DGX system.

nvsm show logs --save is not a recognized command format.

nvsm get logs retrieves logs but does not specifically dump the health report logs.

nvsm health --dump-log is not a standard documented nvsm command.

Therefore, nvsm dump health is the valid and documented command used to generate system logs focused on health reporting, useful for diagnosing performance issues in DGX H100 systems.

This usage aligns with NVIDIA’s system management tools guidance for DGX platforms as described in NVIDIA AI Operations documentation for troubleshooting and performance optimization.

Comprehensive and Detailed Explanation From Exact Extract:

Separating metadata-intensive workloads and large sequential I/O operations ontodifferent storage poolsisolates contention points and optimizes performance for each workload type. Metadata operations benefit from dedicated resources optimized for small, random access, while large sequential I/O requires high-throughput storage. This separation minimizes conflicts and improves overall system responsiveness.

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Comprehensive and Detailed Explanation From Exact Extract:

In Kubernetes architecture, thecontrol planeis composed of several core components including thekube-apiserver,etcd(the cluster’s key-value store),kube-scheduler, andkube-controller-manager. These manage the overall cluster state, scheduling, and orchestration of workloads. Theworker nodesare responsible for running the actual containers and include thekubelet(agent that communicates with the control plane) andkube-proxy(handles network routing for services). Other options incorrectly assign these components or roles.

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Misconfiguration related toMIG modecan cause Slurm to improperly allocate GPUs, leading to job failures. The administrator should verify whether MIG has been enabled on the GPUs and ensure that Slurm’s configuration matches the hardware setup. If MIG is enabled, Slurm must be configured to recognize and schedule MIG partitions correctly to avoid resource conflicts.

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Comprehensive and Detailed Explanation From Exact Extract:

The correctsbatchoption to specify a custom output file for both standard output and error is-o output.txt(or--output=output.txt). This option directs Slurm to write the job’s standard output and error streams to the specified file. The-eoption is for standard error only, and-output-outputis not a valid option.