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NVIDIA-Certified Professional AI Networking Question and Answers

NVIDIA-Certified Professional AI Networking

Last Update Jun 15, 2025
Total Questions : 70

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Questions 1

Which component of the Spectrum-X platform is responsible for reordering out-of-order packets?

Options:

A.  

SuperNIC

B.  

Spectrum-4 switch

C.  

DOCA software

D.  

NetQ

Discussion 0
Questions 2

What are the prerequisites for performing Flow Analysis with NetQ?

Options:

A.  

Cumulus 4.x and later / Spectrum-2 and later / LCM enabled

B.  

Cumulus 5.x and later / Spectrum-3 and later / On-premises deployment

C.  

Cumulus 5.x and later / Spectrum-2 and later / On-premises deployment

D.  

Cumulus 5.x and later / Spectrum-2 and later / LCM enabled

Discussion 0
Questions 3

A major cloud provider is designing a new data center to support large-scale AI workloads, particularly for training large language models. They want to optimize their network architecture for maximum performance and efficiency.

Why is a rail-optimized topology considered a best practice for AI network architecture in this scenario?

Options:

A.  

It prioritizes north-south traffic over east-west traffic for better internet connectivity.

B.  

It simplifies network management by using a single large switch for all connections.

C.  

It provides optimal GPU-to-GPU communication and reduces network interference between flows.

D.  

It maximizes the number of network hops to increase data redundancy.

Discussion 0
Questions 4

You are investigating a performance issue in a Spectrum-X network and suspect there might be congestion problems.

Which component executes the congestion control algorithm in a Spectrum-X environment?​

Options:

A.  

BlueField-3 SuperNICs

B.  

NVIDIA DOCA software

C.  

NVIDIA NetQ

D.  

Spectrum-4 switches​

Discussion 0
Questions 5

How is congestion evaluated in an NVIDIA Spectrum-X system?​

Options:

A.  

By assessing the physical distance between network devices.

B.  

By monitoring the CPU and power usage of network devices.

C.  

By measuring the number of connected devices in the network.

D.  

By analyzing the egress queue loads ensuring all ports are well-balanced.​

Discussion 0
Questions 6

Which of the following statements are true about AI workloads and adaptive routing?

Pick the 2 correct responses below.​

Options:

A.  

AI workloads are made of a small number of volumetric flows called elephant flows.

B.  

AI workloads have very high entropy that helps spread traffic evenly without congestion.

C.  

Flow-based load balancing mechanisms increase congestion risk.

D.  

ECMP-based load balancing works best for AI workloads.​

Discussion 0
Questions 7

You are concerned about potential security threats and unexpected downtime in your InfiniBand data center.

Which UFM platform uses analytics to detect security threats, operational issues, and predict network failures in InfiniBand data centers?​

Options:

A.  

Host Agent

B.  

Enterprise Platform

C.  

Cyber-AI Platform

D.  

Telemetry Platform​

Discussion 0
Questions 8

You are using NVIDIA Air to simulate a Spectrum-X network for AI workloads. You want to ensure that your network configurations are optimal before deployment.

Which NVIDIA tool can be integrated with Air to validate network configurations in the digital twin environment?​

Options:

A.  

Spectrum-X Manager

B.  

NetQ

C.  

DOCA

D.  

GPU Cloud​

Discussion 0
Questions 9

When designing a multi-tenancy East/West (E/W) fabric using Unified Fabric Manager (UFM), which method should be used?​

Options:

A.  

Partition / PKey

B.  

VLAN

C.  

ROMA

D.  

VXLAN​

Discussion 0
Questions 10

What command sequence is used to identify the exact name of the server that runs as the master SM in a multi-node fabric?

Options:

A.  

sminfo

smpquery ND

B.  

sminfo

smpquery Nl

C.  

ibstat

sminfo

D.  

ibis

ibsim

Discussion 0
Questions 11

A cloud service provider is deploying the NVIDIA Spectrum-X Ethernet platform in a multi-tenant environment. To ensure the security and isolation of each tenant's AI workload, the provider wants to implement a feature that prevents unauthorized accessto the network.

Which of the following features of the Spectrum-X platform should the provider implement?

Options:

A.  

Streaming Telemetry

B.  

Adaptive Routing

C.  

Congestion Control

D.  

Traffic Isolation

Discussion 0
Questions 12

You're designing a multi-GPU system for AI training using NVIDIA GPUs with NVLink connections. You need to maximize inter-GPU communication bandwidth. Which feature included in NCCL allows for improved communication between GPUs and NICs?

Options:

A.  

Adaptive Routing

B.  

PXN

C.  

Graph Search Optimization

D.  

SHARP v2

Discussion 0
Questions 13

You are configuring the Unified Fabric Manager (UFM) for an InfiniBand fabric in a multi-tenant environment. You need to implement a solution that can detect potential security threats.

Which UFM feature uses analytics to detect security threats and predict network failures in InfiniBand data centers?

Options:

A.  

Host Agent

B.  

Telemetry platform

C.  

Cyber-AI platform

D.  

Enterprise platform

Discussion 0
Questions 14

You are planning to deploy a large-scale Spectrum-X network for AI workloads. Before physical implementation, you want to validate the network design and configuration using a digital twin approach.

Which NVIDIA tool would be most appropriate for creating and simulating a digital twin of your Spectrum-X network?

Options:

A.  

NVIDIA Base Command Manager

B.  

NVIDIA Omniverse

C.  

NVIDIA NetQ

D.  

NVIDIA Air

Discussion 0
Questions 15

You are troubleshooting connectivity issues in your InfiniBand network and need to test basic connectivity between nodes. Which command should you use to test basic connectivity between InfiniBand nodes?

Options:

A.  

ibping

B.  

traceroute

C.  

ibnetdiscover

D.  

ping

Discussion 0
Questions 16

In Cumulus Linux, which technology enables the ability to provide active-active redundancy to servers, without the need for direct inter-switch links?

Options:

A.  

MLAG

B.  

VSS

C.  

EVPN Multi-homing

Discussion 0
Questions 17

A user has requested confirmation that the InfiniBand network is performing optimally and is not limiting the speed of a training run. To verify this, you would like to measure the RDMA throughput rate between two endpoints.

Which tool should be used?​

Options:

A.  

ibdiagnet

B.  

ib_write_bw

C.  

ping

D.  

iperf​

Discussion 0
Questions 18

You are optimizing an InfiniBand network for AI workloads that require low-latency and high-throughput data transfers. Which feature of InfiniBand networks minimizes CPU overhead during data transfers?​

Options:

A.  

TCP/IP Offloading

B.  

SHARP

C.  

Direct Memory Access (DMA)

D.  

PKey​

Discussion 0
Questions 19

A leading AI research center is upgrading its infrastructure to support large language model projects. The team is debating whether to implement a dedicated storage fabric for their AI workloads.

Which of the following best explains why a dedicated storage fabric is crucial for this AI network architecture?

Pick the 2 correct responses below

Options:

A.  

To enable parallel data access and improve storage performance for distributed AI workloads.

B.  

To ensure data security and isolation from other network traffic.

C.  

To provide high-bandwidth, low-latency data access that prevents I/O bottlenecks during AI model training.

D.  

To reduce the overall cost of the storage infrastructure.

Discussion 0
Questions 20

When upgrading DOCA on a BlueField DPU, what command should first be run on the host?

Options:

A.  

sudo apt-get autoremove

B.  

/usr/sbin/ofed_uninstall.sh -force

C.  

sudo apt-get upgrade doca

D.  

sudo apt-get install doca

Discussion 0
Questions 21

What does NetQ leverage (in addition to NVIDIA "What Just Happened" switch telemetry data and NVIDIA DOCA telemetry) to help network operators proactively identify server and application root cause issues?

Options:

A.  

Flow telemetry

B.  

Behavioral telemetry

C.  

Application telemetry

D.  

Packet capture telemetry

Discussion 0