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NVIDIA NCA-AIIO Bundle

Exam Code: NCA-AIIO

Exam Name NCA - AI Infrastructure and Operations

Certification Provider: NVIDIA

Corresponding Certification: NCA-AIIO

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NVIDIA NCA-AIIO Practice Test 62

Question 610

During an industrial computer-vision rollout at a manufacturing operator, engineers report the following issue: Administrators want preapproved training windows for time-sensitive experiments. The affected work supports factory cameras and maintenance analytics; downtime and incorrect detections can interrupt production. Choose TWO: one corrective approach and one result demonstrating it works. (Select TWO.)

  1. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.
  2. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.
  3. Interpret GPU compute utilization, device-memory occupancy, power draw and temperature together over time instead of using one metric as proof of efficient execution.
  4. An authorized VM sees the expected supported accelerator profile and passes workload and isolation tests under simultaneous tenant demand.
  5. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy.

Explanation

Correct Answers

A:

Correct corrective action. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters. This fits the specific reported issue: Administrators want preapproved training windows for time-sensitive experiments. The corresponding failure being reduced is: Uncontrolled first-come submissions and missing resource limits can starve teams or schedule more accelerator work than exists.

E:

Correct independent evidence. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy. This verifies the corrective approach for the affected factory cameras and maintenance analytics instead of treating an architecture diagram alone as success.

Incorrect Answers

B:

Not the most direct the action-and-evidence pair for these facts. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs. This choice concerns distributed job placement and topology-aware orchestration and may be valid in another design. But this case reports 'Administrators want preapproved training windows for time-sensitive experiments', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

C:

Not the most direct the action-and-evidence pair for these facts. Interpret GPU compute utilization, device-memory occupancy, power draw and temperature together over time instead of using one metric as proof of efficient execution. This choice concerns gpu utilization memory and power telemetry interpretation and may be valid in another design. But this case reports 'Administrators want preapproved training windows for time-sensitive experiments', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

D:

Not the most direct the action-and-evidence pair for these facts. An authorized VM sees the expected supported accelerator profile and passes workload and isolation tests under simultaneous tenant demand. This choice concerns virtual gpus and gpu sharing approaches and may be valid in another design. But this case reports 'Administrators want preapproved training windows for time-sensitive experiments', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Question 611

During a security and capacity review at a financial analytics firm, engineers report the following issue: A job restarts repeatedly because the scheduler allocates incompatible resources. The affected work supports risk scoring and historical-data models; traceable controls and predictable throughput are required. Which action most directly addresses the described requirement?

  1. Compare supported vGPU or time-sliced sharing, passthrough and MIG-backed virtualization according to VM isolation, licensing, performance and hardware support requirements.
  2. Use NVIDIA Data Center GPU Manager to collect supported accelerator telemetry, health and diagnostic information across datacenter GPU nodes.
  3. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.
  4. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

Explanation

Correct Answer

C:

Correct. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters. This directly addresses the observed issue: A job restarts repeatedly because the scheduler allocates incompatible resources. The important distinction is slurm batch queues fair-share and reservations, not a substitute feature from a different component. The follow-up validation is: Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Compare supported vGPU or time-sliced sharing, passthrough and MIG-backed virtualization according to VM isolation, licensing, performance and hardware support requirements. This choice concerns virtual gpus and gpu sharing approaches and may be valid in another design. But this case reports 'A job restarts repeatedly because the scheduler allocates incompatible resources', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

B:

Not the most direct the corrective action for these facts. Use NVIDIA Data Center GPU Manager to collect supported accelerator telemetry, health and diagnostic information across datacenter GPU nodes. This choice concerns nvidia dcgm gpu fleet diagnostics and health and may be valid in another design. But this case reports 'A job restarts repeatedly because the scheduler allocates incompatible resources', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

D:

Not the most direct the corrective action for these facts. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs. This choice concerns distributed job placement and topology-aware orchestration and may be valid in another design. But this case reports 'A job restarts repeatedly because the scheduler allocates incompatible resources', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Question 612

During a security and capacity review at a financial analytics firm, engineers report the following issue: A job restarts repeatedly because the scheduler allocates incompatible resources. The affected work supports risk scoring and historical-data models; traceable controls and predictable throughput are required. Which acceptance result is most relevant to this workload?

  1. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy.
  2. A deliberately observed GPU condition appears in DCGM telemetry with node and device identity and leads to an actionable diagnostic record.
  3. A test pod requests a supported accelerator resource, schedules to an eligible node and performs a successful device computation.
  4. An authorized VM sees the expected supported accelerator profile and passes workload and isolation tests under simultaneous tenant demand.

Explanation

Correct Answer

A:

Correct. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy. This is observable evidence for the issue 'A job restarts repeatedly because the scheduler allocates incompatible resources' in risk scoring and historical-data models. It tests whether the chosen action works under the relevant operating conditions, rather than merely showing that software was installed or a server is powered on.

Incorrect Answers

B:

Not the most direct the acceptance evidence for these facts. A deliberately observed GPU condition appears in DCGM telemetry with node and device identity and leads to an actionable diagnostic record. This choice concerns nvidia dcgm gpu fleet diagnostics and health and may be valid in another design. But this case reports 'A job restarts repeatedly because the scheduler allocates incompatible resources', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

C:

Not the most direct the acceptance evidence for these facts. A test pod requests a supported accelerator resource, schedules to an eligible node and performs a successful device computation. This choice concerns Kubernetes gpu device scheduling and discovery and may be valid in another design. But this case reports 'A job restarts repeatedly because the scheduler allocates incompatible resources', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

D:

Not the most direct the acceptance evidence for these facts. An authorized VM sees the expected supported accelerator profile and passes workload and isolation tests under simultaneous tenant demand. This choice concerns virtual gpus and gpu sharing approaches and may be valid in another design. But this case reports 'A job restarts repeatedly because the scheduler allocates incompatible resources', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Question 613

During a regional deployment expansion at a media technology business, engineers report the following issue: A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs. The affected work supports language and visual-content AI services; different workloads compete for shared acceleration and storage. What should the AI infrastructure engineer recommend first?

  1. Choose supported Multi-Instance GPU profiles for multiple smaller workloads requiring hardware-partitioned compute and memory isolation, after verifying GPU and software support.
  2. Use appropriate NVIDIA GPU drivers, device discovery or GPU Operator components and Kubernetes resource requests so eligible workloads receive supported accelerator devices.
  3. Use NVIDIA Data Center GPU Manager to collect supported accelerator telemetry, health and diagnostic information across datacenter GPU nodes.
  4. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Explanation

Correct Answer

D:

Correct. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters. This directly addresses the observed issue: A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs. The important distinction is slurm batch queues fair-share and reservations, not a substitute feature from a different component. The follow-up validation is: Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Choose supported Multi-Instance GPU profiles for multiple smaller workloads requiring hardware-partitioned compute and memory isolation, after verifying GPU and software support. This choice concerns nvidia mig hardware partitioning and isolation and may be valid in another design. But this case reports 'A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

B:

Not the most direct the corrective action for these facts. Use appropriate NVIDIA GPU drivers, device discovery or GPU Operator components and Kubernetes resource requests so eligible workloads receive supported accelerator devices. This choice concerns Kubernetes gpu device scheduling and discovery and may be valid in another design. But this case reports 'A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

C:

Not the most direct the corrective action for these facts. Use NVIDIA Data Center GPU Manager to collect supported accelerator telemetry, health and diagnostic information across datacenter GPU nodes. This choice concerns nvidia dcgm gpu fleet diagnostics and health and may be valid in another design. But this case reports 'A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Question 614

During a regional deployment expansion at a media technology business, engineers report the following issue: A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs. The affected work supports language and visual-content AI services; different workloads compete for shared acceleration and storage. Which observed result would justify closing this technical concern?

  1. A sampled node's actual firmware, GPU, driver and fabric settings match the approved inventory or show a tracked exception.
  2. An authorized operator retrieves board-level health and remote console information over the protected management network while the host OS is unavailable.
  3. A test pod requests a supported accelerator resource, schedules to an eligible node and performs a successful device computation.
  4. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy.

Explanation

Correct Answer

D:

Correct. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy. This is observable evidence for the issue 'A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs' in language and visual-content AI services. It tests whether the chosen action works under the relevant operating conditions, rather than merely showing that software was installed or a server is powered on.

Incorrect Answers

A:

Not the most direct the acceptance evidence for these facts. A sampled node's actual firmware, GPU, driver and fabric settings match the approved inventory or show a tracked exception. This choice concerns cluster inventory firmware and configuration baseline and may be valid in another design. But this case reports 'A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

B:

Not the most direct the acceptance evidence for these facts. An authorized operator retrieves board-level health and remote console information over the protected management network while the host OS is unavailable. This choice concerns bmc and out-of-band server health administration and may be valid in another design. But this case reports 'A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

C:

Not the most direct the acceptance evidence for these facts. A test pod requests a supported accelerator resource, schedules to an eligible node and performs a successful device computation. This choice concerns Kubernetes gpu device scheduling and discovery and may be valid in another design. But this case reports 'A cluster has idle GPUs while scheduling restrictions are too narrow to place eligible jobs', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Question 615

During a shared-cluster operating review at a university HPC center, engineers report the following issue: A lab cannot explain why one user's work receives priority over another's approved job. The affected work supports research training and scheduled compute allocations; fair resource access and repeatable cluster operations matter. Which design choice best resolves this technical constraint?

  1. Choose supported Multi-Instance GPU profiles for multiple smaller workloads requiring hardware-partitioned compute and memory isolation, after verifying GPU and software support.
  2. Compare supported vGPU or time-sliced sharing, passthrough and MIG-backed virtualization according to VM isolation, licensing, performance and hardware support requirements.
  3. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.
  4. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

Explanation

Correct Answer

C:

Correct. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters. This directly addresses the observed issue: A lab cannot explain why one user's work receives priority over another's approved job. The important distinction is slurm batch queues fair-share and reservations, not a substitute feature from a different component. The follow-up validation is: Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Choose supported Multi-Instance GPU profiles for multiple smaller workloads requiring hardware-partitioned compute and memory isolation, after verifying GPU and software support. This choice concerns nvidia mig hardware partitioning and isolation and may be valid in another design. But this case reports 'A lab cannot explain why one user's work receives priority over another's approved job', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

B:

Not the most direct the corrective action for these facts. Compare supported vGPU or time-sliced sharing, passthrough and MIG-backed virtualization according to VM isolation, licensing, performance and hardware support requirements. This choice concerns virtual gpus and gpu sharing approaches and may be valid in another design. But this case reports 'A lab cannot explain why one user's work receives priority over another's approved job', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

D:

Not the most direct the corrective action for these facts. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs. This choice concerns distributed job placement and topology-aware orchestration and may be valid in another design. But this case reports 'A lab cannot explain why one user's work receives priority over another's approved job', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Question 616

During a shared-cluster operating review at a university HPC center, engineers report the following issue: A lab cannot explain why one user's work receives priority over another's approved job. The affected work supports research training and scheduled compute allocations; fair resource access and repeatable cluster operations matter. How should the team prove that the requested outcome is achieved?

  1. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy.
  2. A test pod requests a supported accelerator resource, schedules to an eligible node and performs a successful device computation.
  3. A reproducible fault is linked to device identifiers, event history and a documented diagnostic action with a verified recovery result.
  4. A point-in-time inspection identifies the correct GPU and active process, memory and temperature state corresponding to the reported issue.

Explanation

Correct Answer

A:

Correct. Several representative users submit jobs and the scheduler allocates only authorized GPU resources under the published priority and quota policy. This is observable evidence for the issue 'A lab cannot explain why one user's work receives priority over another's approved job' in research training and scheduled compute allocations. It tests whether the chosen action works under the relevant operating conditions, rather than merely showing that software was installed or a server is powered on.

Incorrect Answers

B:

Not the most direct the acceptance evidence for these facts. A test pod requests a supported accelerator resource, schedules to an eligible node and performs a successful device computation. This choice concerns Kubernetes gpu device scheduling and discovery and may be valid in another design. But this case reports 'A lab cannot explain why one user's work receives priority over another's approved job', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

C:

Not the most direct the acceptance evidence for these facts. A reproducible fault is linked to device identifiers, event history and a documented diagnostic action with a verified recovery result. This choice concerns gpu reliability events and diagnostic triage and may be valid in another design. But this case reports 'A lab cannot explain why one user's work receives priority over another's approved job', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

D:

Not the most direct the acceptance evidence for these facts. A point-in-time inspection identifies the correct GPU and active process, memory and temperature state corresponding to the reported issue. This choice concerns nvidia-smi point-in-time gpu operational checks and may be valid in another design. But this case reports 'A lab cannot explain why one user's work receives priority over another's approved job', which calls for reasoning about slurm batch queues fair-share and reservations. The targeted response is: Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Question 617

During a multi-team AI platform review at an applied research institute, engineers report the following issue: A four-worker training process starts with only three available GPU slots. The affected work supports training and inference experiments; jobs must produce reproducible, defensible technical results. What implementation is most defensible given the stated facts?

  1. Interpret GPU compute utilization, device-memory occupancy, power draw and temperature together over time instead of using one metric as proof of efficient execution.
  2. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.
  3. Correlate supported GPU error counters and Xid or ECC events with driver logs, diagnostics and affected workloads before deciding on remediation or hardware replacement.
  4. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters.

Explanation

Correct Answer

B:

Correct. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs. This directly addresses the observed issue: A four-worker training process starts with only three available GPU slots. The important distinction is distributed job placement and topology-aware orchestration, not a substitute feature from a different component. The follow-up validation is: A multi-node training allocation starts with its required worker set and achieves expected synchronized-step performance without stranded partial jobs.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Interpret GPU compute utilization, device-memory occupancy, power draw and temperature together over time instead of using one metric as proof of efficient execution. This choice concerns gpu utilization memory and power telemetry interpretation and may be valid in another design. But this case reports 'A four-worker training process starts with only three available GPU slots', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

C:

Not the most direct the corrective action for these facts. Correlate supported GPU error counters and Xid or ECC events with driver logs, diagnostics and affected workloads before deciding on remediation or hardware replacement. This choice concerns gpu reliability events and diagnostic triage and may be valid in another design. But this case reports 'A four-worker training process starts with only three available GPU slots', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

D:

Not the most direct the corrective action for these facts. Use a workload scheduler such as Slurm with explicit job GPU resource requests, queue policies and fair-share controls for shared training clusters. This choice concerns slurm batch queues fair-share and reservations and may be valid in another design. But this case reports 'A four-worker training process starts with only three available GPU slots', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

Question 618

During a multi-team AI platform review at an applied research institute, engineers report the following issue: A four-worker training process starts with only three available GPU slots. The affected work supports training and inference experiments; jobs must produce reproducible, defensible technical results. Which failure mode is the strongest reason to correct the problem?

  1. Host uptime or generic CPU monitoring alone can miss GPU-specific failures, throttling and compute or memory problems.
  2. Pods cannot reliably obtain GPUs if device resources are not exposed or requested correctly, even when nodes physically contain accelerators.
  3. Individually placed workers can deadlock or underperform when all required peers or usable network links are not allocated together.
  4. Inconsistent hardware or firmware versions across nodes can create hard-to-reproduce performance and compatibility failures.

Explanation

Correct Answer

C:

Correct. Individually placed workers can deadlock or underperform when all required peers or usable network links are not allocated together. The observed condition 'A four-worker training process starts with only three available GPU slots' creates this exposure. The intended mitigation is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

Incorrect Answers

A:

Not the most direct the primary risk for these facts. Host uptime or generic CPU monitoring alone can miss GPU-specific failures, throttling and compute or memory problems. This choice concerns nvidia dcgm gpu fleet diagnostics and health and may be valid in another design. But this case reports 'A four-worker training process starts with only three available GPU slots', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

B:

Not the most direct the primary risk for these facts. Pods cannot reliably obtain GPUs if device resources are not exposed or requested correctly, even when nodes physically contain accelerators. This choice concerns Kubernetes gpu device scheduling and discovery and may be valid in another design. But this case reports 'A four-worker training process starts with only three available GPU slots', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

D:

Not the most direct the primary risk for these facts. Inconsistent hardware or firmware versions across nodes can create hard-to-reproduce performance and compatibility failures. This choice concerns cluster inventory firmware and configuration baseline and may be valid in another design. But this case reports 'A four-worker training process starts with only three available GPU slots', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

Question 619

During a high-traffic model-service launch at an online commerce company, engineers report the following issue: Distributed ranks are scattered across oversubscribed network paths without topology review. The affected work supports product search, recommendations and fraud screening; peak request demand makes degraded predictions visible to customers. Which approach targets the actual problem rather than a different AI issue?

  1. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.
  2. Use appropriate NVIDIA GPU drivers, device discovery or GPU Operator components and Kubernetes resource requests so eligible workloads receive supported accelerator devices.
  3. Interpret GPU compute utilization, device-memory occupancy, power draw and temperature together over time instead of using one metric as proof of efficient execution.
  4. Choose supported Multi-Instance GPU profiles for multiple smaller workloads requiring hardware-partitioned compute and memory isolation, after verifying GPU and software support.

Explanation

Correct Answer

A:

Correct. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs. This directly addresses the observed issue: Distributed ranks are scattered across oversubscribed network paths without topology review. The important distinction is distributed job placement and topology-aware orchestration, not a substitute feature from a different component. The follow-up validation is: A multi-node training allocation starts with its required worker set and achieves expected synchronized-step performance without stranded partial jobs.

Incorrect Answers

B:

Not the most direct the corrective action for these facts. Use appropriate NVIDIA GPU drivers, device discovery or GPU Operator components and Kubernetes resource requests so eligible workloads receive supported accelerator devices. This choice concerns Kubernetes gpu device scheduling and discovery and may be valid in another design. But this case reports 'Distributed ranks are scattered across oversubscribed network paths without topology review', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

C:

Not the most direct the corrective action for these facts. Interpret GPU compute utilization, device-memory occupancy, power draw and temperature together over time instead of using one metric as proof of efficient execution. This choice concerns gpu utilization memory and power telemetry interpretation and may be valid in another design. But this case reports 'Distributed ranks are scattered across oversubscribed network paths without topology review', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

D:

Not the most direct the corrective action for these facts. Choose supported Multi-Instance GPU profiles for multiple smaller workloads requiring hardware-partitioned compute and memory isolation, after verifying GPU and software support. This choice concerns nvidia mig hardware partitioning and isolation and may be valid in another design. But this case reports 'Distributed ranks are scattered across oversubscribed network paths without topology review', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

Question 620

During a high-traffic model-service launch at an online commerce company, engineers report the following issue: Distributed ranks are scattered across oversubscribed network paths without topology review. The affected work supports product search, recommendations and fraud screening; peak request demand makes degraded predictions visible to customers. Which TWO responses form the best remediation-and-evidence pair? (Select TWO.)

  1. Compare supported vGPU or time-sliced sharing, passthrough and MIG-backed virtualization according to VM isolation, licensing, performance and hardware support requirements.
  2. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.
  3. Use appropriate NVIDIA GPU drivers, device discovery or GPU Operator components and Kubernetes resource requests so eligible workloads receive supported accelerator devices.
  4. A sampled node's actual firmware, GPU, driver and fabric settings match the approved inventory or show a tracked exception.
  5. A multi-node training allocation starts with its required worker set and achieves expected synchronized-step performance without stranded partial jobs.

Explanation

Correct Answers

B:

Correct corrective action. Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs. This fits the specific reported issue: Distributed ranks are scattered across oversubscribed network paths without topology review. The corresponding failure being reduced is: Individually placed workers can deadlock or underperform when all required peers or usable network links are not allocated together.

E:

Correct independent evidence. A multi-node training allocation starts with its required worker set and achieves expected synchronized-step performance without stranded partial jobs. This verifies the corrective approach for the affected product search, recommendations and fraud screening instead of treating an architecture diagram alone as success.

Incorrect Answers

A:

Not the most direct the action-and-evidence pair for these facts. Compare supported vGPU or time-sliced sharing, passthrough and MIG-backed virtualization according to VM isolation, licensing, performance and hardware support requirements. This choice concerns virtual gpus and gpu sharing approaches and may be valid in another design. But this case reports 'Distributed ranks are scattered across oversubscribed network paths without topology review', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

C:

Not the most direct the action-and-evidence pair for these facts. Use appropriate NVIDIA GPU drivers, device discovery or GPU Operator components and Kubernetes resource requests so eligible workloads receive supported accelerator devices. This choice concerns Kubernetes gpu device scheduling and discovery and may be valid in another design. But this case reports 'Distributed ranks are scattered across oversubscribed network paths without topology review', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.

D:

Not the most direct the action-and-evidence pair for these facts. A sampled node's actual firmware, GPU, driver and fabric settings match the approved inventory or show a tracked exception. This choice concerns cluster inventory firmware and configuration baseline and may be valid in another design. But this case reports 'Distributed ranks are scattered across oversubscribed network paths without topology review', which calls for reasoning about distributed job placement and topology-aware orchestration. The targeted response is: Place tightly coupled distributed training processes with awareness of accelerator counts, network topology and collective communication demands, and validate gang-scheduling needs.