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NCP-AII Questions & Answers
Exam Code: NCP-AII
Exam Name: NCP-AI Infrastructure
Certification Provider: NVIDIA
NCP-AII Premium File
170 Questions & Answers
Last Update: Nov 6, 2026
Includes questions types found on actual exam such as drag and drop, simulation, type in, and fill in the blank.
Verified by experts
NCP-AII Questions & Answers
Exam Code: NCP-AII
Exam Name: NCP-AI Infrastructure
Certification Provider: NVIDIA
NCP-AII Premium File
170 Questions & Answers
Last Update: Nov 6, 2026
Includes questions types found on actual exam such as drag and drop, simulation, type in, and fill in the blank.
$87.99
$79.99

NCP-AI Infrastructure NCP-AII Practice Test 41

Question 400

At a GPU cluster site, a GPU stress test completes but one NIC loses link whenever accelerators draw maximum node power. Which remediation best targets the underlying cause?

  1. investigate ECC telemetry and isolate defective memory during a supported stress run
  2. stress the affected GPU and correlate throttle reasons with system telemetry
  3. monitor NIC links storage and GPU telemetry during maximum approved node stress
  4. run simultaneous multi-GPU stress at the approved concurrency

Explanation

Correct Answer

C:

Correct. This is the corrective step for system-level concurrent device behavior is not included in single-node acceptance; it addresses the failure at its source. The confirming observation is network interfaces remain stable while full node load stays in limits.

Incorrect Answers

A:

“investigate ECC telemetry and isolate defective memory during a supported stress run” addresses correct numerical outputs do not negate accumulating hardware memory faults, but the current hardware or infrastructure issue is system-level concurrent device behavior is not included in single-node acceptance. The option “monitor NIC links storage and GPU telemetry during maximum approved node stress” is more directly tied to the required outcome.

B:

“stress the affected GPU and correlate throttle reasons with system telemetry” addresses gPU cooling or power behavior degrades only under sustained compute duty, but the current hardware or infrastructure issue is system-level concurrent device behavior is not included in single-node acceptance. The option “monitor NIC links storage and GPU telemetry during maximum approved node stress” is more directly tied to the required outcome.

D:

Useful for aggregate power and thermal behavior across all GPUs was never validated, but it does not remove the specific condition: system-level concurrent device behavior is not included in single-node acceptance.

Question 401

For a controlled change involving 'monitor NIC links storage and GPU telemetry during maximum approved node stress', which acceptance evidence would best establish the intended outcome?

  1. network interfaces remain stable while full node load stays in limits
  2. aggregate load stays inside rack power and device thermal limits
  3. sampled clocks remain above the approved floor without unexpected throttle flags
  4. reruns under identical settings yield comparable measured load and error trends

Explanation

Correct Answer

A:

Correct. This is observable proof for the intended change, not just evidence that a command was issued. It establishes network interfaces remain stable while full node load stays in limits, addressing system-level concurrent device behavior is not included in single-node acceptance.

Incorrect Answers

B:

“aggregate load stays inside rack power and device thermal limits” addresses aggregate power and thermal behavior across all GPUs was never validated, but the current hardware or infrastructure issue is system-level concurrent device behavior is not included in single-node acceptance. The option “network interfaces remain stable while full node load stays in limits” is more directly tied to the required outcome.

C:

“sampled clocks remain above the approved floor without unexpected throttle flags” addresses gPU cooling or power behavior degrades only under sustained compute duty, but the current hardware or infrastructure issue is system-level concurrent device behavior is not included in single-node acceptance. The option “network interfaces remain stable while full node load stays in limits” is more directly tied to the required outcome.

D:

“reruns under identical settings yield comparable measured load and error trends” addresses inconsistent stress conditions invalidate benchmark comparison, but the current hardware or infrastructure issue is system-level concurrent device behavior is not included in single-node acceptance. The option “network interfaces remain stable while full node load stays in limits” is more directly tied to the required outcome.

Question 402

During a readiness assessment, operators launch two independent stress tools simultaneously and compare results to a baseline created with only one tool. Which correction should be prioritized?

  1. standardize workload mix duration power cap and monitoring for repeatable tests
  2. apply vendor-qualified stress parameters within site power and cooling constraints
  3. stress the affected GPU and correlate throttle reasons with system telemetry
  4. bind stress artifacts to GPU UUID PCI slot and chassis identity

Explanation

Correct Answer

A:

Correct. This is the corrective step for inconsistent stress conditions invalidate benchmark comparison; it addresses the failure at its source. The confirming observation is reruns under identical settings yield comparable measured load and error trends.

Incorrect Answers

B:

Useful for stress profile does not represent a safe supported commissioning envelope, but it does not remove the specific condition: inconsistent stress conditions invalidate benchmark comparison.

C:

“stress the affected GPU and correlate throttle reasons with system telemetry” addresses gPU cooling or power behavior degrades only under sustained compute duty, but the current hardware or infrastructure issue is inconsistent stress conditions invalidate benchmark comparison. The option “standardize workload mix duration power cap and monitoring for repeatable tests” is more directly tied to the required outcome.

D:

“bind stress artifacts to GPU UUID PCI slot and chassis identity” addresses burn-in evidence cannot be attributed to the replaced hardware, but the current hardware or infrastructure issue is inconsistent stress conditions invalidate benchmark comparison. The option “standardize workload mix duration power cap and monitoring for repeatable tests” is more directly tied to the required outcome.

Question 403

An HPL test reports very low FLOPS on a powerful GPU node because the problem matrix is too small to occupy available compute. Which corrective action is MOST appropriate before commissioning can proceed?

  1. specify and validate the supported HPL implementation and GPU execution configuration
  2. align HPL process affinity and memory placement with accelerator topology
  3. tune HPL problem size and process configuration to the available memory
  4. hold GPU power limits and workload configuration constant across HPL tests

Explanation

Correct Answer

C:

Correct. The underlying problem is benchmark working set does not exercise the intended accelerator capacity. This intervention targets that mechanism. Confirm completion through measured FLOPS increase while residual accuracy remains acceptable.

Incorrect Answers

A:

Useful for benchmark implementation and acceleration path are not comparable, but it does not remove the specific condition: benchmark working set does not exercise the intended accelerator capacity.

B:

“align HPL process affinity and memory placement with accelerator topology” addresses nUMA locality causes cross-socket transfer and memory penalties, but the current hardware or infrastructure issue is benchmark working set does not exercise the intended accelerator capacity. The option “tune HPL problem size and process configuration to the available memory” is more directly tied to the required outcome.

D:

“hold GPU power limits and workload configuration constant across HPL tests” addresses uncontrolled power policy confounds benchmark comparisons, but the current hardware or infrastructure issue is benchmark working set does not exercise the intended accelerator capacity. The option “tune HPL problem size and process configuration to the available memory” is more directly tied to the required outcome.

Question 404

The implementation team reports that it has completed 'tune HPL problem size and process configuration to the available memory'. Which evidence should the acceptance reviewer request?

  1. an independent rerun reproduces accepted FLOPS within tolerance
  2. measured FLOPS increase while residual accuracy remains acceptable
  3. steady-state GFLOPS and clocks remain stable within accepted tolerances
  4. logs identify the correct accelerated libraries devices and comparable metrics

Explanation

Correct Answer

B:

Correct. This is observable proof for the intended change, not just evidence that a command was issued. It establishes measured FLOPS increase while residual accuracy remains acceptable, addressing benchmark working set does not exercise the intended accelerator capacity.

Incorrect Answers

A:

“an independent rerun reproduces accepted FLOPS within tolerance” addresses performance evidence lacks a complete repeatable benchmark configuration, but the current hardware or infrastructure issue is benchmark working set does not exercise the intended accelerator capacity. The option “measured FLOPS increase while residual accuracy remains acceptable” is more directly tied to the required outcome.

C:

“steady-state GFLOPS and clocks remain stable within accepted tolerances” addresses thermal throttling skews the benchmark sustained-performance result, but the current hardware or infrastructure issue is benchmark working set does not exercise the intended accelerator capacity. The option “measured FLOPS increase while residual accuracy remains acceptable” is more directly tied to the required outcome.

D:

“logs identify the correct accelerated libraries devices and comparable metrics” addresses benchmark implementation and acceleration path are not comparable, but the current hardware or infrastructure issue is benchmark working set does not exercise the intended accelerator capacity. The option “measured FLOPS increase while residual accuracy remains acceptable” is more directly tied to the required outcome.

Question 405

An NVIDIA infrastructure team reports this operational finding: an engineer claims HPL passed because the process ended but the benchmark residual exceeds its validity threshold. Which action MOST directly addresses it?

  1. inspect scaled residual and require acceptable numerical correctness
  2. measure thermals and maintain approved cooling throughout HPL execution
  3. map HPL ranks and device assignments to all approved GPUs
  4. hold GPU power limits and workload configuration constant across HPL tests

Explanation

Correct Answer

A:

Correct. The underlying problem is HPL numerical result validation was ignored in favor of process completion. This intervention targets that mechanism. Confirm completion through HPL output reports a valid solution with performance measurements.

Incorrect Answers

B:

“measure thermals and maintain approved cooling throughout HPL execution” addresses thermal throttling skews the benchmark sustained-performance result, but the current hardware or infrastructure issue is hPL numerical result validation was ignored in favor of process completion. The option “inspect scaled residual and require acceptable numerical correctness” is more directly tied to the required outcome.

C:

Useful for benchmark rank placement does not engage the intended GPU count, but it does not remove the specific condition: HPL numerical result validation was ignored in favor of process completion.

D:

“hold GPU power limits and workload configuration constant across HPL tests” addresses uncontrolled power policy confounds benchmark comparisons, but the current hardware or infrastructure issue is hPL numerical result validation was ignored in favor of process completion. The option “inspect scaled residual and require acceptable numerical correctness” is more directly tied to the required outcome.

Question 406

An engineer claims the change 'inspect scaled residual and require acceptable numerical correctness' restored readiness. Which measurable test result would substantiate that claim?

  1. full HPL run completes without allocation failure and has a valid residual
  2. each intended GPU shows work and aggregate HPL throughput meets baseline
  3. steady-state GFLOPS and clocks remain stable within accepted tolerances
  4. HPL output reports a valid solution with performance measurements

Explanation

Correct Answer

D:

Correct. This is observable proof for the intended change, not just evidence that a command was issued. It establishes HPL output reports a valid solution with performance measurements, addressing HPL numerical result validation was ignored in favor of process completion.

Incorrect Answers

A:

“full HPL run completes without allocation failure and has a valid residual” addresses matrix problem dimensions exceed available resources, but the current hardware or infrastructure issue is hPL numerical result validation was ignored in favor of process completion. The option “HPL output reports a valid solution with performance measurements” is more directly tied to the required outcome.

B:

“each intended GPU shows work and aggregate HPL throughput meets baseline” addresses benchmark rank placement does not engage the intended GPU count, but the current hardware or infrastructure issue is hPL numerical result validation was ignored in favor of process completion. The option “HPL output reports a valid solution with performance measurements” is more directly tied to the required outcome.

C:

“steady-state GFLOPS and clocks remain stable within accepted tolerances” addresses thermal throttling skews the benchmark sustained-performance result, but the current hardware or infrastructure issue is hPL numerical result validation was ignored in favor of process completion. The option “HPL output reports a valid solution with performance measurements” is more directly tied to the required outcome.

Question 407

A validation report notes: a single GPU reports high utilization in HPL while seven other GPU devices remain idle due to rank mapping. What is the MOST defensible next action?

  1. measure thermals and maintain approved cooling throughout HPL execution
  2. specify and validate the supported HPL implementation and GPU execution configuration
  3. map HPL ranks and device assignments to all approved GPUs
  4. hold GPU power limits and workload configuration constant across HPL tests

Explanation

Correct Answer

C:

Correct. The underlying problem is benchmark rank placement does not engage the intended GPU count. This intervention targets that mechanism. Confirm completion through each intended GPU shows work and aggregate HPL throughput meets baseline.

Incorrect Answers

A:

Useful for thermal throttling skews the benchmark sustained-performance result, but it does not remove the specific condition: benchmark rank placement does not engage the intended GPU count.

B:

“specify and validate the supported HPL implementation and GPU execution configuration” addresses benchmark implementation and acceleration path are not comparable, but the current hardware or infrastructure issue is benchmark rank placement does not engage the intended GPU count. The option “map HPL ranks and device assignments to all approved GPUs” is more directly tied to the required outcome.

D:

“hold GPU power limits and workload configuration constant across HPL tests” addresses uncontrolled power policy confounds benchmark comparisons, but the current hardware or infrastructure issue is benchmark rank placement does not engage the intended GPU count. The option “map HPL ranks and device assignments to all approved GPUs” is more directly tied to the required outcome.

Question 408

The site has performed 'map HPL ranks and device assignments to all approved GPUs'. Which direct result is needed to close this issue rather than merely check a configuration?

  1. repeated throughput changes remain after matching power and clock conditions
  2. steady-state GFLOPS and clocks remain stable within accepted tolerances
  3. NUMA binding and benchmark throughput match qualified node baselines
  4. each intended GPU shows work and aggregate HPL throughput meets baseline

Explanation

Correct Answer

D:

Correct. The test directly checks whether benchmark rank placement does not engage the intended GPU count has been remediated. That result supports operational acceptance rather than only configuration presence.

Incorrect Answers

A:

“repeated throughput changes remain after matching power and clock conditions” addresses uncontrolled power policy confounds benchmark comparisons, but the current hardware or infrastructure issue is benchmark rank placement does not engage the intended GPU count. The option “each intended GPU shows work and aggregate HPL throughput meets baseline” is more directly tied to the required outcome.

B:

“steady-state GFLOPS and clocks remain stable within accepted tolerances” addresses thermal throttling skews the benchmark sustained-performance result, but the current hardware or infrastructure issue is benchmark rank placement does not engage the intended GPU count. The option “each intended GPU shows work and aggregate HPL throughput meets baseline” is more directly tied to the required outcome.

C:

“NUMA binding and benchmark throughput match qualified node baselines” addresses nUMA locality causes cross-socket transfer and memory penalties, but the current hardware or infrastructure issue is benchmark rank placement does not engage the intended GPU count. The option “each intended GPU shows work and aggregate HPL throughput meets baseline” is more directly tied to the required outcome.

Question 409

HPL performance on a dual-socket system drops when CPU ranks and GPU PCIe endpoints are assigned to remote NUMA domains. Which corrective action is MOST appropriate before commissioning can proceed?

  1. tune HPL problem size and process configuration to the available memory
  2. record HPL.dat matrix process grid versions and device binding
  3. specify and validate the supported HPL implementation and GPU execution configuration
  4. align HPL process affinity and memory placement with accelerator topology

Explanation

Correct Answer

D:

Correct. The incident follows from NUMA locality causes cross-socket transfer and memory penalties. This action changes the failing dependency, with NUMA binding and benchmark throughput match qualified node baselines as a measurable success criterion.

Incorrect Answers

A:

“tune HPL problem size and process configuration to the available memory” addresses benchmark working set does not exercise the intended accelerator capacity, but the current hardware or infrastructure issue is nUMA locality causes cross-socket transfer and memory penalties. The option “align HPL process affinity and memory placement with accelerator topology” is more directly tied to the required outcome.

B:

“record HPL.dat matrix process grid versions and device binding” addresses performance evidence lacks a complete repeatable benchmark configuration, but the current hardware or infrastructure issue is nUMA locality causes cross-socket transfer and memory penalties. The option “align HPL process affinity and memory placement with accelerator topology” is more directly tied to the required outcome.

C:

Useful for benchmark implementation and acceleration path are not comparable, but it does not remove the specific condition: NUMA locality causes cross-socket transfer and memory penalties.

Question 410

The implementation team reports that it has completed 'align HPL process affinity and memory placement with accelerator topology'. Which evidence should the acceptance reviewer request?

  1. each intended GPU shows work and aggregate HPL throughput meets baseline
  2. repeated throughput changes remain after matching power and clock conditions
  3. NUMA binding and benchmark throughput match qualified node baselines
  4. logs identify the correct accelerated libraries devices and comparable metrics

Explanation

Correct Answer

C:

Correct. This result validates the change in service conditions and is the closest evidence that NUMA locality causes cross-socket transfer and memory penalties is no longer causing the issue.

Incorrect Answers

A:

“each intended GPU shows work and aggregate HPL throughput meets baseline” addresses benchmark rank placement does not engage the intended GPU count, but the current hardware or infrastructure issue is nUMA locality causes cross-socket transfer and memory penalties. The option “NUMA binding and benchmark throughput match qualified node baselines” is more directly tied to the required outcome.

B:

“repeated throughput changes remain after matching power and clock conditions” addresses uncontrolled power policy confounds benchmark comparisons, but the current hardware or infrastructure issue is nUMA locality causes cross-socket transfer and memory penalties. The option “NUMA binding and benchmark throughput match qualified node baselines” is more directly tied to the required outcome.

D:

“logs identify the correct accelerated libraries devices and comparable metrics” addresses benchmark implementation and acceleration path are not comparable, but the current hardware or infrastructure issue is nUMA locality causes cross-socket transfer and memory penalties. The option “NUMA binding and benchmark throughput match qualified node baselines” is more directly tied to the required outcome.

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