NCP-AII 試験問題を無料オンラインアクセス

A customer has just completed the first boot of their DGX system and is prompted to create an administrative user. What is the correct approach for setting up this user to ensure secure BMC and GRUB access?

• A.Create a unique, strong, lower-case username and password that will be used for both BMC and GRUB access, avoiding default or weak credentials.
• B.Skip the creation of a new user and retain the default admin account for BMC and GRUB access.
• C.Use "sysadmin" as the username and a simple password for ease of management.
• D.Create separate usernames for BMC and GRUB to maximize flexibility.

You are tasked with updating both NVIDIA GPU drivers and DOCA drivers on a set of servers used for AI workloads. The environment previously had an older driver stack and custom kernel modules. What is the most important step to successfully upgrade the drivers without causing conflicts?

• A.Update the GPU driver leaving the DOCA and OFED drivers unchanged as long as they are detecting the hardware properly.
• B.Validate the driver version post-install since the fresh install will overwrite the legacy drivers.
• C.Keep the older driver running alongside the new version in case you need to roll back the upgrade.
• D.Uninstall all existing GPU and DOCA-related drivers and associated kernel modules before the new install

An AI engineer compares two HGX server configurations. One system uses only PCIe connections between GPUs, while the other includes NVLink and NVSwitch. During large-scale model training, the second configuration consistently finishes epochs sooner despite identical GPUs and CPUs. Which architectural feature primarily accounts for this improvement?

• A.NVLink replaces system memory with GPU memory.
• B.PCIe automatically aggregates bandwidth across every GPU.
• C.NVSwitch accelerates Ethernet routing between servers.
• D.NVSwitch enables high-bandwidth, low-latency communication among all GPUs within the server.

During HPL execution on a DGX cluster, the benchmark fails with "not enough memory' errors despite sufficient physical RAM. Which HPL.dat parameter adjustment is most effective?

• A.Reduce the problem size while maintaining the same block size.
• B.Increase block size to 6144 to maximize GPU utilization.
• C.Set PMAP to 1 to enable process mapping.
• D.Disable double-buffering via BCAST parameter.

A network architect deploys a Spectrum Ethernet fabric for a RoCE-based AI cluster. During stress testing, distributed training performance fluctuates significantly because packet loss occurs whenever multiple training jobs execute simultaneously. Which network feature should be prioritized to improve communication consistency?

• A.Lossless Ethernet configuration with congestion management
• B.Disabling RDMA on every interface
• C.Increasing GPU memory allocation
• D.Replacing all Top-of-Rack switches with PCIe switches