Question 15
UnclassifiedWhich command checks PCIe link speed and width for all NVIDIA GPUs in the system?
Correct answer: D
Explanation
NVIDIA tools can report PCIe link details such as speed and lane width for GPUs, so multiple commands may expose the same information. Since the answer says "All of the above can show PCIe link information," it fits the fact that these utilities can each display PCIe link status for all NVIDIA GPUs in the system.
Why each option is right or wrong
A. nvidia-smi -q -d PCIE
B. lspci -vvv | grep -i nvidia
C. nvidia-smi --query-gpu=pcie.link.gen.current,pcie.link.width.current --format=csv
D. All of the above can show PCIe link information
NVIDIA’s management utilities expose PCIe link status through the NVML-backed query fields for link generation and width, so more than one command can surface the same data for every detected GPU. In practice, commands such as `nvidia-smi` with the appropriate query options, `nvidia-smi -q`, and related NVIDIA diagnostic tools can each report the current PCIe speed and lane width, which is why the inclusive choice is the only one that fits the question as written.