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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 54

Question 530

During a regional deployment expansion at a media technology business, engineers report the following issue: Operations claim CPU savings without monitoring the offloaded workload. The affected work supports language and visual-content AI services; different workloads compete for shared acceleration and storage. Which TWO responses form the best remediation-and-evidence pair? (Select TWO.)

  1. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.
  2. GPU duty-cycle telemetry and input pipeline measurements show the intended sustained utilization under a representative training job.
  3. Design a cluster as an integrated compute, storage, networking, orchestration and management system rather than an unordered collection of GPU servers.
  4. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy.
  5. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Explanation

Correct Answers

A:

Correct corrective action. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints. This fits the specific reported issue: Operations claim CPU savings without monitoring the offloaded workload. The corresponding failure being reduced is: Sending every infrastructure service through application CPUs can increase contention and weaken independent control over infrastructure functions.

D:

Correct independent evidence. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy. This verifies the corrective approach for the affected language and visual-content AI services instead of treating an architecture diagram alone as success.

Incorrect Answers

B:

Not the most direct the action-and-evidence pair for these facts. GPU duty-cycle telemetry and input pipeline measurements show the intended sustained utilization under a representative training job. This choice concerns training system compute and data feed balance and may be valid in another design. But this case reports 'Operations claim CPU savings without monitoring the offloaded workload', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

C:

Not the most direct the action-and-evidence pair for these facts. Design a cluster as an integrated compute, storage, networking, orchestration and management system rather than an unordered collection of GPU servers. This choice concerns core components of an accelerated ai cluster and may be valid in another design. But this case reports 'Operations claim CPU savings without monitoring the offloaded workload', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

E:

Not the most direct the action-and-evidence pair for these facts. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate. This choice concerns dpu isolation and secure infrastructure services and may be valid in another design. But this case reports 'Operations claim CPU savings without monitoring the offloaded workload', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

Question 531

During a shared-cluster operating review at a university HPC center, engineers report the following issue: An engineer expects a DPU to increase the GPU's tensor core count. The affected work supports research training and scheduled compute allocations; fair resource access and repeatable cluster operations matter. Which action most directly addresses the described requirement?

  1. Consider data residency, security requirements, network egress and operational control when deciding between private infrastructure, cloud and a hybrid AI environment.
  2. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.
  3. Compare supported InfiniBand and AI-optimized Ethernet fabrics against workload collectives, latency, operational skills and interoperability needs without treating them as identical.
  4. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

Explanation

Correct Answer

D:

Correct. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints. This directly addresses the observed issue: An engineer expects a DPU to increase the GPU's tensor core count. The important distinction is bluefield dpu infrastructure offload, not a substitute feature from a different component. The follow-up validation is: A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Consider data residency, security requirements, network egress and operational control when deciding between private infrastructure, cloud and a hybrid AI environment. This choice concerns data locality and control in ai deployment placement and may be valid in another design. But this case reports 'An engineer expects a DPU to increase the GPU's tensor core count', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

B:

Not the most direct the corrective action for these facts. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate. This choice concerns dpu isolation and secure infrastructure services and may be valid in another design. But this case reports 'An engineer expects a DPU to increase the GPU's tensor core count', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

C:

Not the most direct the corrective action for these facts. Compare supported InfiniBand and AI-optimized Ethernet fabrics against workload collectives, latency, operational skills and interoperability needs without treating them as identical. This choice concerns infiniband and ethernet high-speed fabric selection and may be valid in another design. But this case reports 'An engineer expects a DPU to increase the GPU's tensor core count', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

Question 532

During a shared-cluster operating review at a university HPC center, engineers report the following issue: An engineer expects a DPU to increase the GPU's tensor core count. The affected work supports research training and scheduled compute allocations; fair resource access and repeatable cluster operations matter. Which acceptance result is most relevant to this workload?

  1. An end-to-end cost and capacity study covers representative utilization, deployment lead time, data movement and required service levels.
  2. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.
  3. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy.
  4. An authorized operator reaches BMC and fabric management over the intended isolated path while workload accounts cannot.

Explanation

Correct Answer

C:

Correct. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy. This is observable evidence for the issue 'An engineer expects a DPU to increase the GPU's tensor core count' 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

A:

Not the most direct the acceptance evidence for these facts. An end-to-end cost and capacity study covers representative utilization, deployment lead time, data movement and required service levels. This choice concerns cloud elasticity versus on-prem capacity tradeoffs and may be valid in another design. But this case reports 'An engineer expects a DPU to increase the GPU's tensor core count', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

B:

Not the most direct the acceptance evidence for these facts. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues. This choice concerns dpu isolation and secure infrastructure services and may be valid in another design. But this case reports 'An engineer expects a DPU to increase the GPU's tensor core count', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

D:

Not the most direct the acceptance evidence for these facts. An authorized operator reaches BMC and fabric management over the intended isolated path while workload accounts cannot. This choice concerns management network isolation and access and may be valid in another design. But this case reports 'An engineer expects a DPU to increase the GPU's tensor core count', which calls for reasoning about bluefield dpu infrastructure offload. The targeted response is: Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.

Question 533

During a multi-team AI platform review at an applied research institute, engineers report the following issue: A multi-tenant host can alter network enforcement rules intended to be platform-controlled. The affected work supports training and inference experiments; jobs must produce reproducible, defensible technical results. What should the AI infrastructure engineer recommend first?

  1. Calculate steady and peak rack power demand for GPU servers, network devices and support equipment, with appropriate electrical headroom and redundant feed design.
  2. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.
  3. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.
  4. Compare supported InfiniBand and AI-optimized Ethernet fabrics against workload collectives, latency, operational skills and interoperability needs without treating them as identical.

Explanation

Correct Answer

B:

Correct. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate. This directly addresses the observed issue: A multi-tenant host can alter network enforcement rules intended to be platform-controlled. The important distinction is dpu isolation and secure infrastructure services, not a substitute feature from a different component. The follow-up validation is: An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Calculate steady and peak rack power demand for GPU servers, network devices and support equipment, with appropriate electrical headroom and redundant feed design. This choice concerns ai rack power budgeting and delivery and may be valid in another design. But this case reports 'A multi-tenant host can alter network enforcement rules intended to be platform-controlled', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

C:

Not the most direct the corrective action for these facts. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'A multi-tenant host can alter network enforcement rules intended to be platform-controlled', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

D:

Not the most direct the corrective action for these facts. Compare supported InfiniBand and AI-optimized Ethernet fabrics against workload collectives, latency, operational skills and interoperability needs without treating them as identical. This choice concerns infiniband and ethernet high-speed fabric selection and may be valid in another design. But this case reports 'A multi-tenant host can alter network enforcement rules intended to be platform-controlled', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Question 534

During a multi-team AI platform review at an applied research institute, engineers report the following issue: A multi-tenant host can alter network enforcement rules intended to be platform-controlled. The affected work supports training and inference experiments; jobs must produce reproducible, defensible technical results. Which observed result would justify closing this technical concern?

  1. An authorized operator reaches BMC and fabric management over the intended isolated path while workload accounts cannot.
  2. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy.
  3. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.
  4. A topology diagram and a two-node benchmark identify both local GPU paths and the separate inter-node transport.

Explanation

Correct Answer

C:

Correct. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues. This is observable evidence for the issue 'A multi-tenant host can alter network enforcement rules intended to be platform-controlled' in training and inference experiments. 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. An authorized operator reaches BMC and fabric management over the intended isolated path while workload accounts cannot. This choice concerns management network isolation and access and may be valid in another design. But this case reports 'A multi-tenant host can alter network enforcement rules intended to be platform-controlled', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

B:

Not the most direct the acceptance evidence for these facts. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'A multi-tenant host can alter network enforcement rules intended to be platform-controlled', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

D:

Not the most direct the acceptance evidence for these facts. A topology diagram and a two-node benchmark identify both local GPU paths and the separate inter-node transport. This choice concerns nvlink scale-up versus external network scale-out and may be valid in another design. But this case reports 'A multi-tenant host can alter network enforcement rules intended to be platform-controlled', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Question 535

During a high-traffic model-service launch at an online commerce company, engineers report the following issue: A security team wants infrastructure isolation from guest operating system compromise. The affected work supports product search, recommendations and fraud screening; peak request demand makes degraded predictions visible to customers. Which design choice best resolves this technical constraint?

  1. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.
  2. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.
  3. Compare public-cloud GPU elasticity, service availability, transfer cost and operating expense with owned cluster utilization and lifecycle cost before choosing placement.
  4. Plan multiple accelerator nodes with a suitable high-bandwidth low-latency network and distributed training communications, then measure scaling efficiency.

Explanation

Correct Answer

B:

Correct. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate. This directly addresses the observed issue: A security team wants infrastructure isolation from guest operating system compromise. The important distinction is dpu isolation and secure infrastructure services, not a substitute feature from a different component. The follow-up validation is: An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'A security team wants infrastructure isolation from guest operating system compromise', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

C:

Not the most direct the corrective action for these facts. Compare public-cloud GPU elasticity, service availability, transfer cost and operating expense with owned cluster utilization and lifecycle cost before choosing placement. This choice concerns cloud elasticity versus on-prem capacity tradeoffs and may be valid in another design. But this case reports 'A security team wants infrastructure isolation from guest operating system compromise', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

D:

Not the most direct the corrective action for these facts. Plan multiple accelerator nodes with a suitable high-bandwidth low-latency network and distributed training communications, then measure scaling efficiency. This choice concerns scale-out cluster design and distributed communication and may be valid in another design. But this case reports 'A security team wants infrastructure isolation from guest operating system compromise', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Question 536

During a high-traffic model-service launch at an online commerce company, engineers report the following issue: A security team wants infrastructure isolation from guest operating system compromise. The affected work supports product search, recommendations and fraud screening; peak request demand makes degraded predictions visible to customers. How should the team prove that the requested outcome is achieved?

  1. A topology diagram and a two-node benchmark identify both local GPU paths and the separate inter-node transport.
  2. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy.
  3. A multi-node training test records throughput and collective communication time before and after adding nodes.
  4. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.

Explanation

Correct Answer

D:

Correct. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues. This is observable evidence for the issue 'A security team wants infrastructure isolation from guest operating system compromise' in product search, recommendations and fraud screening. 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 topology diagram and a two-node benchmark identify both local GPU paths and the separate inter-node transport. This choice concerns nvlink scale-up versus external network scale-out and may be valid in another design. But this case reports 'A security team wants infrastructure isolation from guest operating system compromise', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

B:

Not the most direct the acceptance evidence for these facts. A measured offload configuration performs the intended network or security service while preserving application CPU resources and policy. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'A security team wants infrastructure isolation from guest operating system compromise', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

C:

Not the most direct the acceptance evidence for these facts. A multi-node training test records throughput and collective communication time before and after adding nodes. This choice concerns scale-out cluster design and distributed communication and may be valid in another design. But this case reports 'A security team wants infrastructure isolation from guest operating system compromise', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Question 537

During a regulated deployment assessment at a healthcare imaging provider, engineers report the following issue: An operator installs a DPU but leaves unrestricted management access from all tenants. The affected work supports clinical imaging and model-assisted workflows; patient data constraints and reliable model performance are important. What implementation is most defensible given the stated facts?

  1. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.
  2. Consider data residency, security requirements, network egress and operational control when deciding between private infrastructure, cloud and a hybrid AI environment.
  3. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.
  4. Plan Ethernet-based RDMA such as RoCE with appropriate traffic engineering and congestion behavior rather than assuming a generic best-effort Ethernet configuration is sufficient.

Explanation

Correct Answer

A:

Correct. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate. This directly addresses the observed issue: An operator installs a DPU but leaves unrestricted management access from all tenants. The important distinction is dpu isolation and secure infrastructure services, not a substitute feature from a different component. The follow-up validation is: An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.

Incorrect Answers

B:

Not the most direct the corrective action for these facts. Consider data residency, security requirements, network egress and operational control when deciding between private infrastructure, cloud and a hybrid AI environment. This choice concerns data locality and control in ai deployment placement and may be valid in another design. But this case reports 'An operator installs a DPU but leaves unrestricted management access from all tenants', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

C:

Not the most direct the corrective action for these facts. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'An operator installs a DPU but leaves unrestricted management access from all tenants', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

D:

Not the most direct the corrective action for these facts. Plan Ethernet-based RDMA such as RoCE with appropriate traffic engineering and congestion behavior rather than assuming a generic best-effort Ethernet configuration is sufficient. This choice concerns roce congestion and loss-management considerations and may be valid in another design. But this case reports 'An operator installs a DPU but leaves unrestricted management access from all tenants', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Question 538

During a regulated deployment assessment at a healthcare imaging provider, engineers report the following issue: An operator installs a DPU but leaves unrestricted management access from all tenants. The affected work supports clinical imaging and model-assisted workflows; patient data constraints and reliable model performance are important. Which consequence follows most directly from these constraints?

  1. Allowing an untrusted tenant host full control of shared infrastructure services can undermine isolation and incident containment.
  2. An accelerator interconnect inside a node does not replace a routed or switched multi-node data center fabric.
  3. A storage system optimized for tiny transactional operations can starve parallel training reads or slow recovery of large checkpoints.
  4. Sending every infrastructure service through application CPUs can increase contention and weaken independent control over infrastructure functions.

Explanation

Correct Answer

A:

Correct. Allowing an untrusted tenant host full control of shared infrastructure services can undermine isolation and incident containment. The observed condition 'An operator installs a DPU but leaves unrestricted management access from all tenants' creates this exposure. The intended mitigation is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Incorrect Answers

B:

Not the most direct the primary risk for these facts. An accelerator interconnect inside a node does not replace a routed or switched multi-node data center fabric. This choice concerns nvlink scale-up versus external network scale-out and may be valid in another design. But this case reports 'An operator installs a DPU but leaves unrestricted management access from all tenants', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

C:

Not the most direct the primary risk for these facts. A storage system optimized for tiny transactional operations can starve parallel training reads or slow recovery of large checkpoints. This choice concerns storage throughput and data pipeline for ai clusters and may be valid in another design. But this case reports 'An operator installs a DPU but leaves unrestricted management access from all tenants', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

D:

Not the most direct the primary risk for these facts. Sending every infrastructure service through application CPUs can increase contention and weaken independent control over infrastructure functions. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'An operator installs a DPU but leaves unrestricted management access from all tenants', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Question 539

During an industrial computer-vision rollout at a manufacturing operator, engineers report the following issue: A host-level firewall is the only control even though tenants have root access. The affected work supports factory cameras and maintenance analytics; downtime and incorrect detections can interrupt production. Which approach targets the actual problem rather than a different AI issue?

  1. Validate independent power distribution, cooling support, cabling paths and maintenance arrangements against the desired service availability and failure domains.
  2. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.
  3. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.
  4. Plan Ethernet-based RDMA such as RoCE with appropriate traffic engineering and congestion behavior rather than assuming a generic best-effort Ethernet configuration is sufficient.

Explanation

Correct Answer

B:

Correct. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate. This directly addresses the observed issue: A host-level firewall is the only control even though tenants have root access. The important distinction is dpu isolation and secure infrastructure services, not a substitute feature from a different component. The follow-up validation is: An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.

Incorrect Answers

A:

Not the most direct the corrective action for these facts. Validate independent power distribution, cooling support, cabling paths and maintenance arrangements against the desired service availability and failure domains. This choice concerns redundant facility services for ai availability and may be valid in another design. But this case reports 'A host-level firewall is the only control even though tenants have root access', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

C:

Not the most direct the corrective action for these facts. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'A host-level firewall is the only control even though tenants have root access', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

D:

Not the most direct the corrective action for these facts. Plan Ethernet-based RDMA such as RoCE with appropriate traffic engineering and congestion behavior rather than assuming a generic best-effort Ethernet configuration is sufficient. This choice concerns roce congestion and loss-management considerations and may be valid in another design. But this case reports 'A host-level firewall is the only control even though tenants have root access', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

Question 540

During an industrial computer-vision rollout at a manufacturing operator, engineers report the following issue: A host-level firewall is the only control even though tenants have root access. The affected work supports factory cameras and maintenance analytics; downtime and incorrect detections can interrupt production. Select TWO: the most appropriate action and the strongest verification of that action. (Select TWO.)

  1. The selected placement demonstrably meets allowed data locations, access controls, connectivity and realistic transfer times.
  2. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.
  3. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints.
  4. Plan Ethernet-based RDMA such as RoCE with appropriate traffic engineering and congestion behavior rather than assuming a generic best-effort Ethernet configuration is sufficient.
  5. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues.

Explanation

Correct Answers

B:

Correct corrective action. Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate. This fits the specific reported issue: A host-level firewall is the only control even though tenants have root access. The corresponding failure being reduced is: Allowing an untrusted tenant host full control of shared infrastructure services can undermine isolation and incident containment.

E:

Correct independent evidence. An authorization test demonstrates that tenant workloads cannot modify privileged DPU-managed policy while permitted infrastructure traffic continues. This verifies the corrective approach for the affected factory cameras and maintenance analytics instead of treating an architecture diagram alone as success.

Incorrect Answers

A:

Not the most direct the action-and-evidence pair for these facts. The selected placement demonstrably meets allowed data locations, access controls, connectivity and realistic transfer times. This choice concerns data locality and control in ai deployment placement and may be valid in another design. But this case reports 'A host-level firewall is the only control even though tenants have root access', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

C:

Not the most direct the action-and-evidence pair for these facts. Associate a BlueField DPU with offloading selected networking, storage and security infrastructure work from host CPUs while meeting supported deployment constraints. This choice concerns bluefield dpu infrastructure offload and may be valid in another design. But this case reports 'A host-level firewall is the only control even though tenants have root access', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.

D:

Not the most direct the action-and-evidence pair for these facts. Plan Ethernet-based RDMA such as RoCE with appropriate traffic engineering and congestion behavior rather than assuming a generic best-effort Ethernet configuration is sufficient. This choice concerns roce congestion and loss-management considerations and may be valid in another design. But this case reports 'A host-level firewall is the only control even though tenants have root access', which calls for reasoning about dpu isolation and secure infrastructure services. The targeted response is: Use supported DPU infrastructure functions to separate privileged platform networking or security services from untrusted host workload control when appropriate.