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NVIDIA NCP-AII Practice Test 38

Question 370

During an NVIDIA AI factory acceptance test, engineers discover: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. Which TWO complementary elements are needed: the correct technical action and the strongest independent diagnostic evidence? Select TWO answers.

  1. Provision unique BMC addresses on protected out-of-band management, rotate initial credentials and test access separately from host networking.
  2. Mark a GPU cluster fully commissioned from delivery receipts and a few functioning LEDs while critical tests are absent.
  3. Review rack load calculations, platform dimensions, rail kits, equipment placement plan and recorded installation inspections.
  4. Review installation runbook, signed component inventory, issue register, test reports and acceptance ownership.
  5. Use a stage-gated acceptance checklist covering facility, firmware, nodes, fabrics, storage, security and test evidence.

Explanation

Correct Answers

D:

This is the direct operational evidence to investigate: Review installation runbook, signed component inventory, issue register, test reports and acceptance ownership. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults.

E:

This is an appropriate correction for Commissioning evidence and rack acceptance gate: Use a stage-gated acceptance checklist covering facility, firmware, nodes, fabrics, storage, security and test evidence. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. The governing mechanism is: Physical installation is not equivalent to operational acceptance; every critical dependency needs traceable proof.

Incorrect Answers

A:

This alternative is relevant to BMC network bring-up and out-of-band separation but does not directly resolve the current Commissioning evidence and rack acceptance gate issue: Provision unique BMC addresses on protected out-of-band management, rotate initial credentials and test access separately from host networking. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. The governing mechanism is: Physical installation is not equivalent to operational acceptance; every critical dependency needs traceable proof.

B:

This tempting but unsafe shortcut is not a sufficient remediation for Commissioning evidence and rack acceptance gate: Mark a GPU cluster fully commissioned from delivery receipts and a few functioning LEDs while critical tests are absent. Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. Physical installation is not equivalent to operational acceptance; every critical dependency needs traceable proof.

C:

This alternative is relevant to DGX rack load and rail placement but does not directly resolve the current Commissioning evidence and rack acceptance gate issue: Review rack load calculations, platform dimensions, rail kits, equipment placement plan and recorded installation inspections. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults.

Question 371

A production GPU cluster review identifies this condition: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. Which diagnostic evidence should be obtained FIRST to substantiate the likely fault or configuration gap? Select ONE best answer.

  1. Review inlet and exhaust sensor trends, aisle containment, rack occupancy, fan telemetry and thermal throttling events.
  2. Mark a GPU cluster fully commissioned from delivery receipts and a few functioning LEDs while critical tests are absent.
  3. Inspect facility grounding tests, rack bonds, wrist-strap practice, ESD storage and chassis service records.
  4. Review installation runbook, signed component inventory, issue register, test reports and acceptance ownership.

Explanation

Correct Answer

D:

This is the direct operational evidence to investigate: Review installation runbook, signed component inventory, issue register, test reports and acceptance ownership. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. The governing mechanism is: Physical installation is not equivalent to operational acceptance; every critical dependency needs traceable proof.

Incorrect Answers

A:

This alternative is relevant to Cold aisle inlet air and thermal envelope but does not directly resolve the current Commissioning evidence and rack acceptance gate issue: Review inlet and exhaust sensor trends, aisle containment, rack occupancy, fan telemetry and thermal throttling events. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults.

B:

This tempting but unsafe shortcut is not a sufficient remediation for Commissioning evidence and rack acceptance gate: Mark a GPU cluster fully commissioned from delivery receipts and a few functioning LEDs while critical tests are absent. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. The governing mechanism is: Physical installation is not equivalent to operational acceptance; every critical dependency needs traceable proof. The proportionate action is: Use a stage-gated acceptance checklist covering facility, firmware, nodes, fabrics, storage, security and test evidence.

C:

This alternative is relevant to Rack bonding grounding and ESD handling but does not directly resolve the current Commissioning evidence and rack acceptance gate issue: Inspect facility grounding tests, rack bonds, wrist-strap practice, ESD storage and chassis service records. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults.

Question 372

In a professional AI infrastructure deployment, a technician observes: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. After corrective work, which observable result BEST confirms that the requirement is met? Select ONE best answer.

  1. Mark a GPU cluster fully commissioned from delivery receipts and a few functioning LEDs while critical tests are absent.
  2. The rack enters service only after required evidence passes or explicit residual exceptions receive authorized disposition.
  3. Sustained representative load runs without overcurrent events, while reserve capacity satisfies the approved electrical design.
  4. A planned single-feed isolation leaves required servers within power limits and serving their intended workloads.

Explanation

Correct Answer

B:

This is an observable verified result, not merely a claimed configuration change: The rack enters service only after required evidence passes or explicit residual exceptions receive authorized disposition. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults.

Incorrect Answers

A:

This tempting but unsafe shortcut is not a sufficient remediation for Commissioning evidence and rack acceptance gate: Mark a GPU cluster fully commissioned from delivery receipts and a few functioning LEDs while critical tests are absent. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults. The governing mechanism is: Physical installation is not equivalent to operational acceptance; every critical dependency needs traceable proof. The proportionate action is: Use a stage-gated acceptance checklist covering facility, firmware, nodes, fabrics, storage, security and test evidence. A direct check is: Review installation runbook, signed component inventory, issue register, test reports and acceptance ownership. The acceptance condition is: The rack enters service only after required evidence passes or explicit residual exceptions receive authorized disposition.

C:

That option concerns GPU node peak power budgeting. Physical installation is not equivalent to operational acceptance; every critical dependency needs traceable proof.

D:

This alternative is relevant to Dual-feed rack power and PDU mapping but does not directly resolve the current Commissioning evidence and rack acceptance gate issue: A planned single-feed isolation leaves required servers within power limits and serving their intended workloads. Observed scenario: Operations inherits a new pod with no list of deviations and no owner accountable for unresolved installation faults.

Question 373

The cluster operations team needs to evaluate this situation: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic. Which operational response is MOST appropriate to address the root issue? Select ONE best answer.

  1. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  2. Align supported DOCA runtime, host driver and BlueField firmware versions and retest relevant application capabilities.
  3. Choose supported MIG GPU-instance profiles and create matching compute instances with validated resource assignments.
  4. Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery.

Explanation

Correct Answer

D:

This is an appropriate correction for BlueField DPU embedded versus NIC ownership: Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

Incorrect Answers

A:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.

B:

This alternative is relevant to DOCA and BlueField host driver interoperability but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Align supported DOCA runtime, host driver and BlueField firmware versions and retest relevant application capabilities. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

C:

This alternative is relevant to MIG GPU and compute instance partition profiles but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Choose supported MIG GPU-instance profiles and create matching compute instances with validated resource assignments. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

Question 374

At a multi-node AI infrastructure handoff, the team records: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic. Which underlying infrastructure principle BEST explains the issue? Select ONE best answer.

  1. MIG instance topology and scheduler-visible resources must agree; some MIG instance state requires explicit recreation after reboot.
  2. BlueField embedded software provisioning is a controlled device lifecycle separate from the host's ordinary OS image.
  3. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  4. In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities.

Explanation

Correct Answer

D:

This is the governing infrastructure principle: In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

Incorrect Answers

A:

This alternative is relevant to MIG lifecycle and workload scheduling persistence but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: MIG instance topology and scheduler-visible resources must agree; some MIG instance state requires explicit recreation after reboot. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

B:

This alternative is relevant to BlueField boot image BFB provisioning and BMC but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: BlueField embedded software provisioning is a controlled device lifecycle separate from the host's ordinary OS image. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

C:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode. In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities.

Question 375

During an NVIDIA AI factory acceptance test, engineers discover: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic. Which diagnostic evidence should be obtained FIRST to substantiate the likely fault or configuration gap? Select ONE best answer.

  1. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  2. Inspect running process ownership, postboot instance layout, device plugin or GRES inventory and schedule placement receipts.
  3. Inspect mode configuration, embedded OS status, host-visible functions, network policy and mode-transition logs.
  4. Inspect DPU hardware generation, BFB package provenance, BMC job records, Arm boot logs and firmware versions.

Explanation

Correct Answer

C:

This is the direct operational evidence to investigate: Inspect mode configuration, embedded OS status, host-visible functions, network policy and mode-transition logs. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

Incorrect Answers

A:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode. An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

B:

This alternative is relevant to MIG lifecycle and workload scheduling persistence but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Inspect running process ownership, postboot instance layout, device plugin or GRES inventory and schedule placement receipts. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

D:

This alternative is relevant to BlueField boot image BFB provisioning and BMC but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Inspect DPU hardware generation, BFB package provenance, BMC job records, Arm boot logs and firmware versions. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

Question 376

A production GPU cluster review identifies this condition: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic. After corrective work, which observable result BEST confirms that the requirement is met? Select ONE best answer.

  1. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  2. After maintenance the expected GPU slices are recreated and queued workloads receive only valid assigned devices.
  3. Host and DPU traffic follows the intended control model after restart, with reachable protected management access.
  4. The intended DOCA service and packet processing function pass documented functional and failover tests.

Explanation

Correct Answer

C:

This is an observable verified result, not merely a claimed configuration change: Host and DPU traffic follows the intended control model after restart, with reachable protected management access. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

Incorrect Answers

A:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode. An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic. In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities.

B:

This alternative is relevant to MIG lifecycle and workload scheduling persistence but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: After maintenance the expected GPU slices are recreated and queued workloads receive only valid assigned devices. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

D:

This alternative is relevant to DOCA and BlueField host driver interoperability but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: The intended DOCA service and packet processing function pass documented functional and failover tests. Observed scenario: An operator places BlueField into NIC mode but still expects the Arm-side embedded switch policy to isolate host traffic.

Question 377

In a professional AI infrastructure deployment, a technician observes: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. Which operational response is MOST appropriate to address the root issue? Select ONE best answer.

  1. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  2. Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery.
  3. Use the supported BFB deployment path with verified image compatibility, approved credentials and postboot checks.
  4. Align supported DOCA runtime, host driver and BlueField firmware versions and retest relevant application capabilities.

Explanation

Correct Answer

B:

This is an appropriate correction for BlueField DPU embedded versus NIC ownership: Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

Incorrect Answers

A:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode. A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

C:

This alternative is relevant to BlueField boot image BFB provisioning and BMC but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Use the supported BFB deployment path with verified image compatibility, approved credentials and postboot checks. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

D:

This alternative is relevant to DOCA and BlueField host driver interoperability but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Align supported DOCA runtime, host driver and BlueField firmware versions and retest relevant application capabilities. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

Question 378

The cluster operations team needs to evaluate this situation: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. Which underlying infrastructure principle BEST explains the issue? Select ONE best answer.

  1. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  2. MIG instance topology and scheduler-visible resources must agree; some MIG instance state requires explicit recreation after reboot.
  3. In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities.
  4. MIG divides compatible GPUs into supported isolated resource profiles; enabling the mode is not equivalent to provisioning usable devices.

Explanation

Correct Answer

C:

This is the governing infrastructure principle: In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

Incorrect Answers

A:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode. A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities.

B:

This alternative is relevant to MIG lifecycle and workload scheduling persistence but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: MIG instance topology and scheduler-visible resources must agree; some MIG instance state requires explicit recreation after reboot. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

D:

This alternative is relevant to MIG GPU and compute instance partition profiles but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: MIG divides compatible GPUs into supported isolated resource profiles; enabling the mode is not equivalent to provisioning usable devices. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

Question 379

At a multi-node AI infrastructure handoff, the team records: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. Which diagnostic evidence should be obtained FIRST to substantiate the likely fault or configuration gap? Select ONE best answer.

  1. Review installed DOCA packages, release compatibility, firmware, host drivers and service launch logs.
  2. Inspect mode configuration, embedded OS status, host-visible functions, network policy and mode-transition logs.
  3. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  4. Inspect running process ownership, postboot instance layout, device plugin or GRES inventory and schedule placement receipts.

Explanation

Correct Answer

B:

This is the direct operational evidence to investigate: Inspect mode configuration, embedded OS status, host-visible functions, network policy and mode-transition logs. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

Incorrect Answers

A:

This alternative is relevant to DOCA and BlueField host driver interoperability but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Review installed DOCA packages, release compatibility, firmware, host drivers and service launch logs. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

C:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. The governing mechanism is: In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities. The proportionate action is: Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery.

D:

This alternative is relevant to MIG lifecycle and workload scheduling persistence but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Inspect running process ownership, postboot instance layout, device plugin or GRES inventory and schedule placement receipts. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

Question 380

During an NVIDIA AI factory acceptance test, engineers discover: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. Which TWO complementary elements are needed: the correct technical action and the strongest independent diagnostic evidence? Select TWO answers.

  1. Inspect mode configuration, embedded OS status, host-visible functions, network policy and mode-transition logs.
  2. Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery.
  3. Inspect DPU hardware generation, BFB package provenance, BMC job records, Arm boot logs and firmware versions.
  4. Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode.
  5. Coordinate MIG reconfiguration with workload draining, persistent desired-state recreation and scheduler resource discovery.

Explanation

Correct Answers

A:

This is the direct operational evidence to investigate: Inspect mode configuration, embedded OS status, host-visible functions, network policy and mode-transition logs. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. The governing mechanism is: In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities.

B:

This is an appropriate correction for BlueField DPU embedded versus NIC ownership: Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. The governing mechanism is: In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities.

Incorrect Answers

C:

This alternative is relevant to BlueField boot image BFB provisioning and BMC but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Inspect DPU hardware generation, BFB package provenance, BMC job records, Arm boot logs and firmware versions. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

D:

This tempting but unsafe shortcut is not a sufficient remediation for BlueField DPU embedded versus NIC ownership: Assume BlueField provides identical security offload and embedded-switch control whether it runs in NIC or DPU mode. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services. The governing mechanism is: In embedded DPU mode the Arm environment can control network functionality; NIC mode changes that ownership model and capabilities. The proportionate action is: Select supported BlueField operation mode to match host and embedded-control ownership, then validate policy and recovery. A direct check is: Inspect mode configuration, embedded OS status, host-visible functions, network policy and mode-transition logs. The acceptance condition is: Host and DPU traffic follows the intended control model after restart, with reachable protected management access.

E:

This alternative is relevant to MIG lifecycle and workload scheduling persistence but does not directly resolve the current BlueField DPU embedded versus NIC ownership issue: Coordinate MIG reconfiguration with workload draining, persistent desired-state recreation and scheduler resource discovery. Observed scenario: A BlueField card functions as a host adapter while the team's design requires DPU-owned processing and offloaded services.

NCP-AI Infrastructure (NCP-AII) Practice Tests