NCA NVIDIA Networking & Interconnects 2

Question 1

What is the maximum bandwidth per port offered by NVIDIA's Quantum-2 InfiniBand switch?

Accepted Answer

400 Gb/s

Answer

NVIDIA's Quantum-2 InfiniBand switches deliver 400 Gb/s per port (NDR InfiniBand).

Question 2

Which NVIDIA networking technology enables GPUs to directly access remote GPU memory without involving the CPU?

Accepted Answer

GPUDirect RDMA

Answer

GPUDirect RDMA allows GPUs to directly read and write remote GPU or NIC memory, bypassing the CPU.

Question 3

What does SHARP stand for in NVIDIA's InfiniBand networking context?

Accepted Answer

Scalable Hierarchical Aggregation Reduction Protocol

Answer

SHARP stands for Scalable Hierarchical Aggregation Reduction Protocol, enabling in-network computing for collective operations.

Question 4

In NVIDIA's networking stack, what is the primary role of the MLNX_OFED driver package?

Accepted Answer

OpenFabrics Enterprise Distribution for RDMA-capable NIC support

Answer

MLNX_OFED is NVIDIA's OpenFabrics Enterprise Distribution providing drivers and libraries for RDMA-capable ConnectX NICs.

Question 5

Which protocol does NVIDIA's RoCE technology use as its transport layer?

Accepted Answer

UDP/IP

Answer

RoCE v2 uses UDP/IP as its transport layer, enabling RDMA semantics over standard Ethernet infrastructure.

(NCA) NVIDIA-Certified Associate Practice Test