A system administrator notices that jobs are failing intermittently on Base Command Manager due to incorrect GPU configurations in Slurm. The administrator needs to ensure that jobs utilize GPUs correctly.
How should they troubleshoot this issue?
Answer : B
Comprehensive and Detailed Explanation From Exact Extract:
Misconfiguration related to MIG mode can 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.
Question 2
A Slurm user needs to submit a batch job script for execution tomorrow.
Which command should be used to complete this task?
Answer : A
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.
Question 3
A cloud engineer is looking to provision a virtual machine for machine learning using the NVIDIA Virtual Machine Image (VMI) and Rapids.
What technology stack will be set up for the development team automatically when the VMI is deployed?
Answer : C
Comprehensive and Detailed Explanation From Exact Extract:
The NVIDIA Virtual Machine Image (VMI) for machine learning provisioning automatically sets up an Ubuntu Server environment with essential components including Docker-CE, NVIDIA Container Toolkit, CSP CLI, NGC CLI, NVIDIA Driver, and Rapids---a suite of GPU-accelerated data science and analytics libraries. This comprehensive stack enables immediate development and deployment of ML workloads.
Question 4
What should an administrator check if GPU-to-GPU communication is slow in a distributed system using Magnum IO?
Answer : D
Comprehensive and Detailed Explanation From Exact Extract:
Slow GPU-to-GPU communication in distributed systems often relates to the configuration of communication libraries such as NCCL (NVIDIA Collective Communications Library) or NVSHMEM. Ensuring these libraries are properly configured and optimized is critical for efficient GPU communication. Limiting GPUs or increasing RAM does not directly improve communication speed, and disabling InfiniBand would degrade performance.
Question 5
You are setting up a Kubernetes cluster on NVIDIA DGX systems using BCM, and you need to initialize the control-plane nodes.
What is the most important step to take before initializing these nodes?
Answer : B
Comprehensive and Detailed Explanation From Exact Extract:
Disabling swap on all control-plane nodes is a critical prerequisite before initializing Kubernetes control-plane nodes. Kubernetes requires swap to be disabled to maintain performance and stability. Failure to disable swap can cause kubeadm initialization to fail or lead to unpredictable cluster behavior.
Question 6
A cloud engineer is looking to deploy a digital fingerprinting pipeline using NVIDIA Morpheus and the NVIDIA AI Enterprise Virtual Machine Image (VMI).
Where would the cloud engineer find the VMI?
Answer : B
Comprehensive and Detailed Explanation From Exact Extract:
The NVIDIA AI Enterprise Virtual Machine Images (VMIs), including those needed for NVIDIA Morpheus deployments, are made available through the major cloud marketplaces such as Azure Marketplace, Google Cloud Marketplace, and Amazon Web Services Marketplace. This provides easy, standardized access and deployment options for enterprise users. While NGC hosts containers and models, the VMIs specifically are offered via cloud marketplaces.
Question 7
An organization has multiple containers and wants to view STDIN, STDOUT, and STDERR I/O streams of a specific container.
What command should be used?
Answer : C
Comprehensive and Detailed Explanation From Exact Extract:
The docker logs CONTAINER-NAME command retrieves the standard output (STDOUT) and standard error (STDERR) streams of a running or stopped container. It is the primary tool for inspecting container I/O logs for debugging and monitoring purposes. docker top shows running processes, docker stats shows resource usage, and docker inspect shows metadata/configuration.
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