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NVIDIA NCP-AII Practice Test 20

Question 190

During an NVIDIA AI factory acceptance test, engineers discover: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. Which TWO complementary elements are needed: the correct technical action and the strongest independent diagnostic evidence? Select TWO answers.

  1. Inspect management API target paths, access scopes, sensor values, chassis actions and independent host inventory.
  2. Check supported CDU supply, flow, leak detection and interlock behavior, then demonstrate controlled thermal response before production.
  3. Record GPU count, device identities, driver state, memory, temperature, power and relevant error flags using nvidia-smi.
  4. Capture nvidia-smi query reports, full diagnostic output and actual workloads mapped to each expected device.
  5. Use one displayed GPU utilization percentage as proof that all eight accelerators are present and error free.

Explanation

Correct Answers

C:

This is an appropriate correction for NVIDIA SMI baseline GPU checks: Record GPU count, device identities, driver state, memory, temperature, power and relevant error flags using nvidia-smi. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. The governing mechanism is: NVIDIA SMI exposes local driver-managed device status; process utilization alone is insufficient evidence of GPU health.

D:

This is the direct operational evidence to investigate: Capture nvidia-smi query reports, full diagnostic output and actual workloads mapped to each expected device. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding.

Incorrect Answers

A:

This alternative is relevant to Redfish inventory and IPMI management boundaries but does not directly resolve the current NVIDIA SMI baseline GPU checks issue: Inspect management API target paths, access scopes, sensor values, chassis actions and independent host inventory. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding.

B:

This alternative is relevant to Liquid cooling supply and leak interlocks but does not directly resolve the current NVIDIA SMI baseline GPU checks issue: Check supported CDU supply, flow, leak detection and interlock behavior, then demonstrate controlled thermal response before production. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding.

E:

This tempting but unsafe shortcut is not a sufficient remediation for NVIDIA SMI baseline GPU checks: Use one displayed GPU utilization percentage as proof that all eight accelerators are present and error free. A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. NVIDIA SMI exposes local driver-managed device status; process utilization alone is insufficient evidence of GPU health.

Question 191

A production GPU cluster review identifies this condition: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. Which diagnostic evidence should be obtained FIRST to substantiate the likely fault or configuration gap? Select ONE best answer.

  1. Inspect CDU telemetry, coolant specifications, alarm contacts, flow and pressure records and documented fail-safe test results.
  2. Inspect PDU outlet maps, breaker assignments, dual-cord wiring, load readings and approved failover test logs.
  3. Capture nvidia-smi query reports, full diagnostic output and actual workloads mapped to each expected device.
  4. Use one displayed GPU utilization percentage as proof that all eight accelerators are present and error free.

Explanation

Correct Answer

C:

This is the direct operational evidence to investigate: Capture nvidia-smi query reports, full diagnostic output and actual workloads mapped to each expected device. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. The governing mechanism is: NVIDIA SMI exposes local driver-managed device status; process utilization alone is insufficient evidence of GPU health.

Incorrect Answers

A:

This alternative is relevant to Liquid cooling supply and leak interlocks but does not directly resolve the current NVIDIA SMI baseline GPU checks issue: Inspect CDU telemetry, coolant specifications, alarm contacts, flow and pressure records and documented fail-safe test results. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding.

B:

This alternative is relevant to Dual-feed rack power and PDU mapping but does not directly resolve the current NVIDIA SMI baseline GPU checks issue: Inspect PDU outlet maps, breaker assignments, dual-cord wiring, load readings and approved failover test logs. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding.

D:

This tempting but unsafe shortcut is not a sufficient remediation for NVIDIA SMI baseline GPU checks: Use one displayed GPU utilization percentage as proof that all eight accelerators are present and error free. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. The governing mechanism is: NVIDIA SMI exposes local driver-managed device status; process utilization alone is insufficient evidence of GPU health. The proportionate action is: Record GPU count, device identities, driver state, memory, temperature, power and relevant error flags using nvidia-smi.

Question 192

In a professional AI infrastructure deployment, a technician observes: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. After corrective work, which observable result BEST confirms that the requirement is met? Select ONE best answer.

  1. Sustained representative load runs without overcurrent events, while reserve capacity satisfies the approved electrical design.
  2. Use one displayed GPU utilization percentage as proof that all eight accelerators are present and error free.
  3. All nodes are securely mounted in compatible rack positions and mechanical inspection passes without blocked service access.
  4. All expected GPUs are visible to the supported driver with acceptable error, thermal and memory state.

Explanation

Correct Answer

D:

This is an observable verified result, not merely a claimed configuration change: All expected GPUs are visible to the supported driver with acceptable error, thermal and memory state. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding.

Incorrect Answers

A:

That option concerns GPU node peak power budgeting. NVIDIA SMI exposes local driver-managed device status; process utilization alone is insufficient evidence of GPU health.

B:

This tempting but unsafe shortcut is not a sufficient remediation for NVIDIA SMI baseline GPU checks: Use one displayed GPU utilization percentage as proof that all eight accelerators are present and error free. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding. The governing mechanism is: NVIDIA SMI exposes local driver-managed device status; process utilization alone is insufficient evidence of GPU health. The proportionate action is: Record GPU count, device identities, driver state, memory, temperature, power and relevant error flags using nvidia-smi. A direct check is: Capture nvidia-smi query reports, full diagnostic output and actual workloads mapped to each expected device. The acceptance condition is: All expected GPUs are visible to the supported driver with acceptable error, thermal and memory state.

C:

This alternative is relevant to DGX rack load and rail placement but does not directly resolve the current NVIDIA SMI baseline GPU checks issue: All nodes are securely mounted in compatible rack positions and mechanical inspection passes without blocked service access. Observed scenario: A maintenance team files host readiness based on CPU health although GPUs have throttling and unknown driver binding.

Question 193

The cluster operations team needs to evaluate this situation: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test. Which operational response is MOST appropriate to address the root issue? Select ONE best answer.

  1. Check supported CDU supply, flow, leak detection and interlock behavior, then demonstrate controlled thermal response before production.
  2. Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests.
  3. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.
  4. Configure supported storage exports or mounts, client permissions and target networks, then verify real read and write operations.

Explanation

Correct Answer

B:

This is an appropriate correction for DCGM initial health and diagnostic scope: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

Incorrect Answers

A:

This alternative is relevant to Liquid cooling supply and leak interlocks but does not directly resolve the current DCGM initial health and diagnostic scope issue: Check supported CDU supply, flow, leak detection and interlock behavior, then demonstrate controlled thermal response before production. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

C:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.

D:

This alternative is relevant to Third-party storage initial network mount but does not directly resolve the current DCGM initial health and diagnostic scope issue: Configure supported storage exports or mounts, client permissions and target networks, then verify real read and write operations. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

Question 194

At a multi-node AI infrastructure handoff, the team records: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test. Which underlying infrastructure principle BEST explains the issue? Select ONE best answer.

  1. Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.
  2. Heavy GPU systems require rated mechanical support and correct mounting; a rack-unit count alone does not establish safe physical deployment.
  3. Redfish and IPMI expose hardware management data and operations, but endpoint selection and privileges determine their safety.
  4. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.

Explanation

Correct Answer

A:

This is the governing infrastructure principle: Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

Incorrect Answers

B:

That option concerns DGX rack load and rail placement. The proportionate action is: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests.

C:

That option concerns Redfish inventory and IPMI management boundaries. The proportionate action is: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests.

D:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites. Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.

Question 195

During an NVIDIA AI factory acceptance test, engineers discover: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test. Which diagnostic evidence should be obtained FIRST to substantiate the likely fault or configuration gap? Select ONE best answer.

  1. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.
  2. Inspect management API target paths, access scopes, sensor values, chassis actions and independent host inventory.
  3. Review DCGM entity discovery, health watches, diagnostic test results, operating load and error details.
  4. Inspect facility grounding tests, rack bonds, wrist-strap practice, ESD storage and chassis service records.

Explanation

Correct Answer

C:

This is the direct operational evidence to investigate: Review DCGM entity discovery, health watches, diagnostic test results, operating load and error details. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

Incorrect Answers

A:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites. A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

B:

This alternative is relevant to Redfish inventory and IPMI management boundaries but does not directly resolve the current DCGM initial health and diagnostic scope issue: Inspect management API target paths, access scopes, sensor values, chassis actions and independent host inventory. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

D:

This alternative is relevant to Rack bonding grounding and ESD handling but does not directly resolve the current DCGM initial health and diagnostic scope issue: Inspect facility grounding tests, rack bonds, wrist-strap practice, ESD storage and chassis service records. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

Question 196

A production GPU cluster review identifies this condition: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test. After corrective work, which observable result BEST confirms that the requirement is met? Select ONE best answer.

  1. Required GPU health suites pass on the intended devices without disrupting unapproved production activity.
  2. Inventory lists the intended devices accurately, while privileged resets require explicit approval and are logged.
  3. A simulated cooling fault raises the intended alert and safely reduces or stops workload before damage occurs.
  4. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.

Explanation

Correct Answer

A:

This is an observable verified result, not merely a claimed configuration change: Required GPU health suites pass on the intended devices without disrupting unapproved production activity. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

Incorrect Answers

B:

This alternative is relevant to Redfish inventory and IPMI management boundaries but does not directly resolve the current DCGM initial health and diagnostic scope issue: Inventory lists the intended devices accurately, while privileged resets require explicit approval and are logged. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

C:

This alternative is relevant to Liquid cooling supply and leak interlocks but does not directly resolve the current DCGM initial health and diagnostic scope issue: A simulated cooling fault raises the intended alert and safely reduces or stops workload before damage occurs. Observed scenario: A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test.

D:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites. A host passes nvidia-smi listing but DCGM reports a failing PCIe or memory health test. Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.

Question 197

In a professional AI infrastructure deployment, a technician observes: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. Which operational response is MOST appropriate to address the root issue? Select ONE best answer.

  1. Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests.
  2. Use approved authenticated BMC inventory endpoints, distinguish read-only calls from power actions and corroborate returned component state.
  3. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.
  4. Check rack dimensions, floor load and rail compatibility, then place approved chassis using the vendor's supported installation sequence.

Explanation

Correct Answer

A:

This is an appropriate correction for DCGM initial health and diagnostic scope: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

Incorrect Answers

B:

This alternative is relevant to Redfish inventory and IPMI management boundaries but does not directly resolve the current DCGM initial health and diagnostic scope issue: Use approved authenticated BMC inventory endpoints, distinguish read-only calls from power actions and corroborate returned component state. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

C:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites. A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

D:

That option concerns DGX rack load and rail placement. Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.

Question 198

The cluster operations team needs to evaluate this situation: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. Which underlying infrastructure principle BEST explains the issue? Select ONE best answer.

  1. Grounding and electrostatic protection limit personnel hazards and component damage; successful boot alone does not establish safe installation.
  2. AI compute power demand varies with accelerator utilization and can exceed idle or average measurements during parallel jobs.
  3. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.
  4. Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.

Explanation

Correct Answer

D:

This is the governing infrastructure principle: Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

Incorrect Answers

A:

This alternative is relevant to Rack bonding grounding and ESD handling but does not directly resolve the current DCGM initial health and diagnostic scope issue: Grounding and electrostatic protection limit personnel hazards and component damage; successful boot alone does not establish safe installation. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

B:

That option concerns GPU node peak power budgeting. The proportionate action is: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests.

C:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites. A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.

Question 199

At a multi-node AI infrastructure handoff, the team records: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. Which diagnostic evidence should be obtained FIRST to substantiate the likely fault or configuration gap? Select ONE best answer.

  1. Inspect facility grounding tests, rack bonds, wrist-strap practice, ESD storage and chassis service records.
  2. Inspect NFS or parallel-fs mount options, client ACLs, identity mapping, network routes and file I/O results.
  3. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.
  4. Review DCGM entity discovery, health watches, diagnostic test results, operating load and error details.

Explanation

Correct Answer

D:

This is the direct operational evidence to investigate: Review DCGM entity discovery, health watches, diagnostic test results, operating load and error details. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

Incorrect Answers

A:

This alternative is relevant to Rack bonding grounding and ESD handling but does not directly resolve the current DCGM initial health and diagnostic scope issue: Inspect facility grounding tests, rack bonds, wrist-strap practice, ESD storage and chassis service records. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

B:

This alternative is relevant to Third-party storage initial network mount but does not directly resolve the current DCGM initial health and diagnostic scope issue: Inspect NFS or parallel-fs mount options, client ACLs, identity mapping, network routes and file I/O results. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

C:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. The governing mechanism is: Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination. The proportionate action is: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests.

Question 200

During an NVIDIA AI factory acceptance test, engineers discover: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. Which THREE elements together establish the appropriate corrective action, independent test evidence and verified successful outcome? Select THREE answers.

  1. Check controller address configuration, switch OOB paths, login records, firmware identity and host-off connectivity.
  2. Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites.
  3. Check supported CDU supply, flow, leak detection and interlock behavior, then demonstrate controlled thermal response before production.
  4. Review DCGM entity discovery, health watches, diagnostic test results, operating load and error details.
  5. Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests.
  6. Required GPU health suites pass on the intended devices without disrupting unapproved production activity.

Explanation

Correct Answers

D:

This is the direct operational evidence to investigate: Review DCGM entity discovery, health watches, diagnostic test results, operating load and error details. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. The governing mechanism is: Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.

E:

This is an appropriate correction for DCGM initial health and diagnostic scope: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. The governing mechanism is: Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination.

F:

This is an observable verified result, not merely a claimed configuration change: Required GPU health suites pass on the intended devices without disrupting unapproved production activity. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

Incorrect Answers

A:

This alternative is relevant to BMC network bring-up and out-of-band separation but does not directly resolve the current DCGM initial health and diagnostic scope issue: Check controller address configuration, switch OOB paths, login records, firmware identity and host-off connectivity. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

B:

This tempting but unsafe shortcut is not a sufficient remediation for DCGM initial health and diagnostic scope: Claim that reading a DCGM health metric is equivalent to completing all active hardware and fabric diagnostic suites. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session. The governing mechanism is: Telemetry observation and active diagnostic stress serve different purposes; intrusive checks need workload coordination. The proportionate action is: Run supported DCGM health checks and appropriately scoped diagnostics during approved windows, then review failed tests. A direct check is: Review DCGM entity discovery, health watches, diagnostic test results, operating load and error details. The acceptance condition is: Required GPU health suites pass on the intended devices without disrupting unapproved production activity.

C:

This alternative is relevant to Liquid cooling supply and leak interlocks but does not directly resolve the current DCGM initial health and diagnostic scope issue: Check supported CDU supply, flow, leak detection and interlock behavior, then demonstrate controlled thermal response before production. Observed scenario: A rack acceptance script runs intrusive high-load diagnostics during an unannounced customer training session.

NCP-AI Infrastructure (NCP-AII) Practice Tests