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Guide for NCP-AII: NVIDIA AI Infrastructure

Quiz NCP-AII: NVIDIA AI Infrastructure

Free Test
/ 10

Quiz

1/10
What command is needed to measure BER (Bit Error Rate)?
Select the answer
1 correct answer
A.
mlxconfig -d <device> q
B.
ethtool -S <device>
C.
mlxlink -d <device> -c -e
D.
mstflint -d <device> q full

Quiz

2/10
When updating the firmware on an NVLink switch transceiver, how can an engineer apply new
firmware without interrupting the network?
Select the answer
1 correct answer
A.
mlxfwreset -d -lid 27 reset --yes to reset the transceiver
B.
Physically disconnect and reconnect the transceiver.
C.
flint -d -lid 27 --linkx --linkx_auto_update --activate
D.
nv action reboot system to force immediate activation.

Quiz

3/10
An infrastructure engineer in an AI factory has successfully replaced a power supply unit on an
NVIDIA DGX H100. After installation, both the IN and OUT LEDs on the new power supply illuminate
solid green. Which NVSM CLI command should the engineer use to quickly verify the overall system
status and ensure it is operating as expected?
Select the answer
1 correct answer
A.
nvsm show power
B.
nvsm show powermode
C.
nvsm show health
D.
nvsm show alerts

Quiz

4/10
A leaf switch shows "FW Version Mismatch" alerts for transceivers after cluster expansion. Which
tool validates transceiver firmware against expected versions?
Select the answer
1 correct answer
A.
flint
B.
iblinkinfo
C.
mlxconfig
D.
ethtool

Quiz

5/10
A system administrator needs to install a GPU/DPU in a server. The server has a free PCI-e slot, there
are enough free PCI-e lanes, and there is enough room for the card. Which procedure should be
followed?
Select the answer
1 correct answer
A.
Ensure the server has enough power. Verify compatibility of cables with server's platform. Make sure the server is down to remove cables safely. Do not wear an ESD bracelet.
B.
Ensure the server has enough power. Make sure the server is down to remove cables safely. Wear an ESD bracelet.
C.
Ensure the server has enough power. Make sure the server is up and running with attached cables. Wear an ESD bracelet.
D.
Ensure the server has enough power. Verify compatibility of cables with server's platform. Make sure the server is down to remove cables safely. Wear an ESD bracelet.

Quiz

6/10
What command sequence is used to identify the exact name of the server that runs as the master SM
in a multi-node fabric?
Select the answer
1 correct answer
A.
sminfo, then smpquery ND
B.
ibstat, then sminfo
C.
ibnetdiscover, then ibsim
D.
sminfo, then smpquery NI

Quiz

7/10
You are following the official steps to install the NVIDIA Container Toolkit using a package manager
on Ubuntu. After importing the NVIDIA package repository and GPG key, what is the next action?
Select the answer
1 correct answer
A.
Reboot the host system to apply the repository changes and proceed.
B.
Install the nvidia-container-toolkit package using your package manager.
C.
Format the disk to clear any existing NVIDIA-related dependencies first.
D.
Download the CUDA toolkit installer from NVIDIA'S official website.

Quiz

8/10
What information does the 'ibnodes' command display?
Select the answer
1 correct answer
A.
All hosts & switches
B.
All host & server names
C.
All server names
D.
All channel adapters

Quiz

9/10
During cluster validation, the Cable Validation Tool (CVT) reports "Underperforming (BER)" for an
InfiniBand link. Which BER thresholds indicate a critical signal quality issue requiring cable
replacement?
Select the answer
1 correct answer
A.
Rx power variance > 3dB between lanes
B.
Effective BER > 0 during the first 125 minutes of link operation
C.
Raw BER > 1e-12 or Effective BER > 1.5E-254 for <6hr measurements
D.
Temperature > 85°C on transceiver module

Quiz

10/10
A 24-hour HPL burn-in fails with "illegal value" errors during the first iteration. Which initial
troubleshooting step resolves this without compromising burn-in validity?
Select the answer
1 correct answer
A.
Switch from FP64 to FP32 precision.
B.
Disable GPU affinity.
C.
Reduce test duration to 12 hours.
D.
Verify the matrix size is divisible by block size.
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  • Quiz name:NCP-AII: NVIDIA AI Infrastructure
  • Total number of questions:71
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