NCA Data Center GPU Solutions 3

Question 1

An engineer is deploying a GPU cluster for distributed deep learning. Which NVIDIA networking solution provides the lowest latency for GPU-to-GPU communication across nodes?

Accepted Answer

NVIDIA Quantum-2 InfiniBand HDR200

Answer

NVIDIA Quantum-2 InfiniBand delivers up to 400 Gb/s per port with ultra-low latency, making it the preferred fabric for tightly coupled distributed GPU workloads.

Question 2

What is NVIDIA GPUDirect RDMA primarily used for in data center environments?

Accepted Answer

Allowing network adapters to transfer data directly to/from GPU memory, bypassing the CPU

Answer

GPUDirect RDMA allows InfiniBand or Ethernet NICs to read and write GPU memory directly, eliminating CPU involvement and reducing latency in distributed training.

Question 3

Which NVIDIA tool is used to benchmark and validate GPU cluster performance and interconnect health before production deployment?

Accepted Answer

NCCL Tests

Answer

NCCL Tests (NVIDIA Collective Communications Library tests) measure all-reduce, all-gather, and other collective operation bandwidth to validate cluster interconnect health.

Question 4

A data center needs to monitor GPU health, detect errors, and manage firmware across thousands of GPUs. Which NVIDIA solution addresses this at scale?

Accepted Answer

NVIDIA DCGM (Data Center GPU Manager)

Answer

DCGM provides enterprise-grade GPU telemetry, health monitoring, diagnostics, and policy management designed for large-scale data center deployments.

Question 5

What is the significance of ECC (Error Correcting Code) memory support in NVIDIA data center GPUs?

Accepted Answer

It corrects single-bit memory errors to ensure computational accuracy for critical workloads

Answer

ECC memory detects and corrects single-bit errors and detects double-bit errors, which is critical for HPC and AI training where silent data corruption is unacceptable.

(NCA) NVIDIA-Certified Associate Practice Test

(NCA) NVIDIA-Certified Associate Practice Test

NCA Data Center GPU Solutions 3