NCA-AIIO · Question #35
NCA-AIIO Question #35: Real Exam Question with Answer & Explanation
The correct answer is C: InfiniBand offers lower latency than Ethernet.. InfiniBand's advantage over Ethernet lies in its lower latency, achieved through a streamlined protocol and hardware offloads, delivering microsecond-scale communication critical for AI clusters. While InfiniBand often offers high bandwidth, Ethernet can match or exceed it (e.g.,
Question
What is an advantage of InfiniBand over Ethernet?
Options
- AInfiniBand always provides higher bandwidth than Ethernet.
- BInfiniBand supports RDMA while Ethernet does not.
- CInfiniBand offers lower latency than Ethernet.
Explanation
InfiniBand's advantage over Ethernet lies in its lower latency, achieved through a streamlined protocol and hardware offloads, delivering microsecond-scale communication critical for AI clusters. While InfiniBand often offers high bandwidth, Ethernet can match or exceed it (e.g., 400 GbE), and Ethernet supports RDMA via RoCE, making latency the standout differentiator.
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