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Q59. You are using NVIDIA Spectrum-X switches in your A1 infrastructure. You observe high latency between two GPU servers during a large distributed training job. After analyzing the switch telemetry, you suspect a suboptimal routing path is contributing to the problem. Which of the following methods offers the MOST granular control for influencing traffic flow within the Spectrum-X fabric to mitigate this?

Q60. You need to uninstall all NVIDIA drivers and associated packages from a Linux system cleanly. Which command sequence is the most reliable for achieving this after stopping the display manager (e.g., ‘sudo systemctl stop gdm3’)?

Q61. You are configuring a network bridge on a Linux host that will connect multiple physical network interfaces to a virtual machine. You need to ensure that the virtual machine receives an IP address via DHCP. Which of the following is the correct command sequence to create the bridge interface ‘br0’, add physical interfaces ‘eth0’ and ‘eth1’ to it, and bring up the bridge interface? Assume the required packages are installed. Consider using ‘ip’ command.

Q62. You are deploying BlueField OS in a highly secure environment. Which of the following security measures are MOST important to consider during and after the OS deployment?

Q63. In an InfiniBand fabric, what is the primary role of the Subnet Manager (SM) with respect to routing?

Q64. Which of the following commands correctly configures the NGC CLI to use a specific API key stored in an environment variable named ‘NGC API KEY’?

Q65. You are designing a storage system using BeeGFS for an AI cluster. The cluster consists of 10 client nodes, each with 2 NVIDIAAIOO GPUs, and 4 storage servers. Each storage server has 10 NVMe SSDs. The training dataset is 100TB. You want to ensure high availability and performance. Which of the following BeeGFS configurations would be MOST appropriate?

Q66. Consider the following simplified CUDA code snippet intended to perform a vector addition:
What are critical steps to validate that this code is correctly utilizing the GPU hardware and producing accurate results?

Q67. You are tasked with implementing a monitoring solution for power consumption and thermal performance in an NVIDIA-powered Ai cluster. You want to collect data from the Baseboard Management Controllers (BMCs) of the servers using Redfish. Which of the following Python code snippets demonstrates the correct approach for authenticating with the BMC and retrieving power and temperature readings?

Q68. You need to configure persistent network settings on your BlueField SmartNIC after deploying BlueField OS. Which file should you modify to ensure these settings are applied after each reboot, assuming a Debian-based distribution?

Q69. You are deploying a cloud-native AI inference service using Kubernetes and NVIDIA GPUs. You need to ensure that GPU resources are efficiently allocated and monitored. Which of the following approaches is MOST effective for achieving this within the Kubernetes environment?

Q70. Which of the following commands or tools can be used to verify the NVIDIA driver version and the CUDA version installed on a Linux system?

Q71. When deploying a BlueField DPIJ in an inline security appliance role, which networking configuration is MOST efficient and provides the lowest latency for inspecting all traffic passing through the server?

Q72. You are deploying a multi-node NVIDIA GPU cluster for distributed deep learning. Each node has a different ambient operating temperature due to varying airflow patterns within the data center. To ensure optimal performance and longevity of the GPUs across all nodes, which approach is MOST effective for managing GPU power limits?

Q73. In a data center utilizing NVIDIA GPUs and NVLink, what is the primary advantage of using a direct-attached NVLink network topology compared to routing traffic over the network?

Q74. You are deploying a BlueField-3 DPU within a secure environment. You are required to enable secure boot to prevent unauthorized firmware from being loaded. Which steps are typically involved in enabling secure boot on a BlueField-3 DPU, starting from a factory- default state? (Select TWO)

Q75. You’re optimizing an AMD EPYC server with 4 NVIDIAAIOO GPUs for a large language model training workload. You observe that the GPUs are consistently underutilized (50-60% utilization) while the CPUs are nearly maxed out. Which of the following is the MOST likely bottleneck?

Q76. You’re optimizing a deep learning model for deployment on NVIDIA Tensor Cores. The model uses a mix of FP32 and FP16 precision. During profiling with NVIDIA Nsight Systems, you observe that the Tensor Cores are underutilized. Which of the following strategies would MOST effectively improve Tensor Core utilization?

Q77. You observe the following output from ‘nvidia-smi’ on a server running a large Ai training job:

What does the ‘ClocksThrottleReasons.ThermalSlowdown: Active’ indicate, and what immediate action should you take?

Q78. You’re deploying a large language model for inference using NVIDIA Triton Inference Server. You need to validate that the server can handle the expected query load while maintaining acceptable latency. Which tools and metrics are most relevant for this validation?

Q79. You have configured two lg.10gb MIG instances on an NVIDIAA100 GPU. You are running a deep learning training job on one instance and want to ensure that it cannot consume resources from the other MIG instance. Which mechanism ensures isolation between the two MIG instances at the hardware level?

Q80. An A1 server is exhibiting unusually high CPU utilization during a GPU-accelerated workload. How can you determine if the CPU is becoming a bottleneck, preventing the GPUs from achieving their full potential?

Q81. You are setting up network fabric ports for hosts in an NVIDIA-Certified Professional A1 Infrastructure (NCP-AII) environment. You need to configure Jumbo Frames to improve network throughput. What is the typical MTU (Maximum Transmission Unit) size you would set on the network interfaces and switches, and why?

Q82. You need to verify the integrity of the BlueField OS image before flashing it to the SmartNIC. Which method would provide the strongest guarantee that the image has not been tampered with?

Q83. Which configuration file should be modified to blacklist the ‘nouveau’ driver on a system running systemd to prevent conflicts with the NVIDIA driver?