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Exam Code: NCA-AIIO

Exam Name NCA - AI Infrastructure and Operations

Certification Provider: NVIDIA

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NVIDIA NCA-AIIO Practice Test 94

Question 930

At the Highbridge university computing center, an IT team selects virtual GPU software without confirming hypervisor host driver and device compatibility. Which issue is most directly indicated by the facts?

  1. A VM needs an explicit supported device assignment to use the physical GPU for compute
  2. GPU thermal protection can reduce achievable performance when cooling is insufficient
  3. A discoverable GPU can still have memory reliability incidents requiring intervention
  4. A compatible physical GPU alone does not establish that a particular guest virtualization combination is supported

Explanation

Correct Answer

D:

The issue is not simply a failed task; a compatible physical GPU alone does not establish that a particular guest virtualization combination is supported. That is why the practical change is to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license. This directly addresses the reported issue at the Highbridge university computing center.

Incorrect Answers

A:

That statement concerns gpu passthrough to virtual machine; here the reported facts point to a different issue: a compatible physical GPU alone does not establish that a particular guest virtualization combination is supported. For the Highbridge university computing center, the priority is to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license.

B:

GPU thermal protection can reduce achievable performance when cooling is insufficient. This can occur in other projects, but it is not the primary explanation at the Highbridge university computing center.

C:

This explanation belongs to ecc memory error signals. The immediate weakness in the question is that a compatible physical GPU alone does not establish that a particular guest virtualization combination is supported. For the Highbridge university computing center, the priority is to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license.

Question 931

At the Highbridge university computing center, an IT team selects virtual GPU software without confirming hypervisor host driver and device compatibility. Which test result would verify the intended improvement?

  1. The guest recognizes its assigned accelerator and completes a validated compute test
  2. The investigation records both monitored health state and a properly scheduled active test result
  3. A test VM boots with the approved vGPU profile and completes a representative accelerator workload
  4. A controlled kernel profile identifies memory traffic as the limiting factor and validates an improvement

Explanation

Correct Answer

C:

The team needs direct evidence that a test VM boots with the approved vGPU profile and completes a representative accelerator workload. That result verifies whether the action to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license has been effective. This directly addresses the reported issue at the Highbridge university computing center.

Incorrect Answers

A:

That observation can be useful for gpu passthrough to virtual machine, but at the Highbridge university computing center the required outcome is that a test VM boots with the approved vGPU profile and completes a representative accelerator workload.

B:

This test would not demonstrate that the identified weakness has been corrected. The necessary result is that a test VM boots with the approved vGPU profile and completes a representative accelerator workload. For the Highbridge university computing center, the priority is to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license.

D:

This result would test memory bandwidth profiling, not the failure described here. The more direct evidence is that a test VM boots with the approved vGPU profile and completes a representative accelerator workload. For the Highbridge university computing center, the priority is to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license.

Question 932

At the Highbridge university computing center, an IT team selects virtual GPU software without confirming hypervisor host driver and device compatibility. How should the team reduce the chance of the issue recurring?

  1. Recheck tenant isolation assumptions whenever virtualization settings change
  2. Track workload outcomes alongside device metrics for performance reporting
  3. Monitor partial placement and job startup failures as cluster load increases
  4. Review the vendor support matrix before host or hypervisor upgrades

Explanation

Correct Answer

D:

This practice addresses future change, not just today’s incident. The team should review the vendor support matrix before host or hypervisor upgrades because a compatible physical GPU alone does not establish that a particular guest virtualization combination is supported. This directly addresses the reported issue at the Highbridge university computing center.

Incorrect Answers

A:

This does not address the failure mode over time. The better ongoing practice is to review the vendor support matrix before host or hypervisor upgrades. For the Highbridge university computing center, the priority is to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license.

B:

This routine applies to gpu utilization interpretation, but it does not maintain the specific correction needed for the problem at the Highbridge university computing center.

C:

That practice helps control a different risk: synchronized distributed execution needs participating processes to begin with compatible shared allocation. The recurring control here should be to review the vendor support matrix before host or hypervisor upgrades. For the Highbridge university computing center, the priority is to validate the supported NVIDIA virtualization stack across GPU hypervisor host driver guest and license.

Question 933

At the Zephyrhaven accelerator computing facility, virtual machines request more accelerator memory than their supported sharing configuration can guarantee. Which implementation change is the most appropriate?

  1. Plan partition reconfiguration during a controlled maintenance window with workload coordination
  2. Observe GPU power telemetry and supported performance or power limit reasons during the workload
  3. Enforce suitable virtual GPU profile limits and admission planning for the tenant workload
  4. Collect a current managed GPU inventory with node identities and supported device attributes

Explanation

Correct Answer

C:

The reported behavior calls for a focused correction: enforce suitable virtual GPU profile limits and admission planning for the tenant workload. It is necessary because virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications. Verification should establish that a mixed-tenant load test remains within configured allocations and rejects unsupported requests. This directly addresses the reported issue at the Zephyrhaven accelerator computing facility.

Incorrect Answers

A:

This option deals with a related concern where changing hardware partition profiles can disrupt current allocations and scheduler device identities. The case at the Zephyrhaven accelerator computing facility instead requires the correction to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

B:

The proposed action would be to observe GPU power telemetry and supported performance or power limit reasons during the workload, which is relevant to power consumption and limits. It would leave the main reported problem unresolved. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

D:

This is appropriate in cases involving gpu fleet discovery inventory, but the facts here call for the team to enforce suitable virtual GPU profile limits and admission planning for the tenant workload. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

Question 934

At the Zephyrhaven accelerator computing facility, virtual machines request more accelerator memory than their supported sharing configuration can guarantee. Which statement best identifies the control gap?

  1. Device allocation does not imply permission to change platform drivers or shared hardware management
  2. Kubernetes needs an advertised accelerator resource and proper scheduling constraints to place GPU workloads
  3. Device activity alone cannot reveal whether computation is useful or waiting on other pipeline stages
  4. Virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications

Explanation

Correct Answer

D:

The critical gap is that virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications. At the Zephyrhaven accelerator computing facility, correcting that gap requires the team to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

Incorrect Answers

A:

Although device allocation does not imply permission to change platform drivers or shared hardware management, the situation does not describe that specific cause; it instead indicates that virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

B:

This is a possible failure mode in another workflow. The reported condition is better explained by the fact that virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

C:

That statement concerns gpu utilization interpretation; here the reported facts point to a different issue: virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

Question 935

At the Zephyrhaven accelerator computing facility, virtual machines request more accelerator memory than their supported sharing configuration can guarantee. Which observation would best confirm that the correction is effective?

  1. A mixed-tenant load test remains within configured allocations and rejects unsupported requests
  2. The guest recognizes its assigned accelerator and completes a validated compute test
  3. A fresh compatible node registers its GPU resources and executes a validation container
  4. A representative job starts with its full required worker group and completes a collective test

Explanation

Correct Answer

A:

The intended change is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload. The strongest verification is that a mixed-tenant load test remains within configured allocations and rejects unsupported requests; merely saving settings would not establish the outcome. This directly addresses the reported issue at the Zephyrhaven accelerator computing facility.

Incorrect Answers

B:

The proposed proof concerns a different control: the guest recognizes its assigned accelerator and completes a validated compute test. It would not establish that a mixed-tenant load test remains within configured allocations and rejects unsupported requests. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

C:

That observation can be useful for gpu operator lifecycle automation, but at the Zephyrhaven accelerator computing facility the required outcome is that a mixed-tenant load test remains within configured allocations and rejects unsupported requests.

D:

This test would not demonstrate that the identified weakness has been corrected. The necessary result is that a mixed-tenant load test remains within configured allocations and rejects unsupported requests. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

Question 936

At the Zephyrhaven accelerator computing facility, virtual machines request more accelerator memory than their supported sharing configuration can guarantee. What continuing safeguard is most appropriate?

  1. Track profile utilization and capacity headroom as tenant demand grows
  2. Check host firmware IOMMU and guest driver compatibility during migrations
  3. Follow a documented drain and return-to-service checklist for each host update
  4. Monitor link errors and collective timing after node maintenance

Explanation

Correct Answer

A:

This practice addresses future change, not just today’s incident. The team should track profile utilization and capacity headroom as tenant demand grows because virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications. This directly addresses the reported issue at the Zephyrhaven accelerator computing facility.

Incorrect Answers

B:

This maintenance work is reasonable for gpu passthrough to virtual machine. The continuing exposure described here is that virtualization cannot provide unlimited physical GPU memory capacity to simultaneous applications. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

C:

This does not address the failure mode over time. The better ongoing practice is to track profile utilization and capacity headroom as tenant demand grows. For the Zephyrhaven accelerator computing facility, the priority is to enforce suitable virtual GPU profile limits and admission planning for the tenant workload.

D:

This routine applies to nvlink link health measures, but it does not maintain the specific correction needed for the problem at the Zephyrhaven accelerator computing facility.

Question 937

At the Ivystone machine learning engineering team, a latency-sensitive prediction VM shares one device with a high-throughput batch tenant and misses its latency target. Which approach most directly resolves the reported issue?

  1. Evaluate NVIDIA Multi-Instance GPU partitions on compatible hardware when stronger resource partitioning is required
  2. Monitor GPU temperature and the relevant device throttling indicators under sustained load
  3. Monitor per-device memory occupancy and peak allocation for the affected job
  4. Measure workload interference and choose appropriate placement isolation or scheduling policies

Explanation

Correct Answer

D:

This change targets the source of the problem instead of a side effect. Because shared compute resources can introduce performance contention even when access isolation is correct, the team should measure workload interference and choose appropriate placement isolation or scheduling policies. The most useful check is that a concurrent benchmark meets the inference latency objective with the selected placement. This directly addresses the reported issue at the Ivystone machine learning engineering team.

Incorrect Answers

A:

This is appropriate in cases involving mig hardware partitioning, but the facts here call for the team to measure workload interference and choose appropriate placement isolation or scheduling policies. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

B:

That change could address gpu temperature monitoring, but it does not resolve the specific weakness here: shared compute resources can introduce performance contention even when access isolation is correct. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

C:

This option deals with a related concern where compute activity and allocated framebuffer memory are different measurements. The case at the Ivystone machine learning engineering team instead requires the correction to measure workload interference and choose appropriate placement isolation or scheduling policies.

Question 938

At the Ivystone machine learning engineering team, a latency-sensitive prediction VM shares one device with a high-throughput batch tenant and misses its latency target. Which technical or process problem best explains the failure?

  1. A VM needs an explicit supported device assignment to use the physical GPU for compute
  2. Shared compute resources can introduce performance contention even when access isolation is correct
  3. GPU peer communication defects may reduce job speed without changing nominal compute capacity
  4. Making GPU devices available is a different function from deciding which users receive accelerator resources

Explanation

Correct Answer

B:

This explanation matches the reported facts: shared compute resources can introduce performance contention even when access isolation is correct. A corrective test should establish that a concurrent benchmark meets the inference latency objective with the selected placement. This directly addresses the reported issue at the Ivystone machine learning engineering team.

Incorrect Answers

A:

A VM needs an explicit supported device assignment to use the physical GPU for compute. This can occur in other projects, but it is not the primary explanation at the Ivystone machine learning engineering team.

C:

Although GPU peer communication defects may reduce job speed without changing nominal compute capacity, the situation does not describe that specific cause; it instead indicates that shared compute resources can introduce performance contention even when access isolation is correct. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

D:

This is a possible failure mode in another workflow. The reported condition is better explained by the fact that shared compute resources can introduce performance contention even when access isolation is correct. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

Question 939

At the Ivystone machine learning engineering team, a latency-sensitive prediction VM shares one device with a high-throughput batch tenant and misses its latency target. Which outcome provides the strongest verification?

  1. A concurrent benchmark meets the inference latency objective with the selected placement
  2. A test incident is visible to host operators while a tenant receives only authorized metrics
  3. A benchmark correlates utilization with completed training steps or served requests
  4. Concurrent test jobs receive permitted nonconflicting allocations and accurate queue state

Explanation

Correct Answer

A:

This observable test is appropriate because shared compute resources can introduce performance contention even when access isolation is correct. A successful result would establish that a concurrent benchmark meets the inference latency objective with the selected placement. This directly addresses the reported issue at the Ivystone machine learning engineering team.

Incorrect Answers

B:

The stated evidence does not directly validate the intended change to measure workload interference and choose appropriate placement isolation or scheduling policies. A suitable verification would establish that a concurrent benchmark meets the inference latency objective with the selected placement. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

C:

This result would test gpu utilization interpretation, not the failure described here. The more direct evidence is that a concurrent benchmark meets the inference latency objective with the selected placement. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

D:

The proposed proof concerns a different control: concurrent test jobs receive permitted nonconflicting allocations and accurate queue state. It would not establish that a concurrent benchmark meets the inference latency objective with the selected placement. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

Question 940

At the Ivystone machine learning engineering team, a latency-sensitive prediction VM shares one device with a high-throughput batch tenant and misses its latency target. What should the team review routinely to prevent this problem?

  1. Audit host and guest management privileges after tenant onboarding
  2. Monitor link errors and collective timing after node maintenance
  3. Review tenant workload combinations after application changes
  4. Review log retention and privacy requirements when diagnostic scope changes

Explanation

Correct Answer

C:

This practice addresses future change, not just today’s incident. The team should review tenant workload combinations after application changes because shared compute resources can introduce performance contention even when access isolation is correct. This directly addresses the reported issue at the Ivystone machine learning engineering team.

Incorrect Answers

A:

This routine applies to gpu virtualization security boundaries, but it does not maintain the specific correction needed for the problem at the Ivystone machine learning engineering team.

B:

That practice helps control a different risk: GPU peer communication defects may reduce job speed without changing nominal compute capacity. The recurring control here should be to review tenant workload combinations after application changes. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.

D:

This maintenance work is reasonable for telemetry retention and access. The continuing exposure described here is that shared compute resources can introduce performance contention even when access isolation is correct. For the Ivystone machine learning engineering team, the priority is to measure workload interference and choose appropriate placement isolation or scheduling policies.