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Exam NCP-AII Topic 1 Question 171 Discussion

Actual exam question for NVIDIA's NCP-AII exam
Question #: 171
Topic #: 1
A BlueField-3 DPUis configured to run both control plane and data plane functions. After a recent software update, you notice that the data plane performance has significantly degraded, but the control plane remains responsive. What is the MOST likely cause, assuming the update didn't introduce any code bugs, and what is the BEST approach to diagnose this issue?

Suggested Answer: A Vote an answer

Resource contention is the MOST likely cause, assuming no code bugs. The update may have increased the resource demands of either the control or data plane, leading to contention. Profiling the data plane processes with 'perf or 'bpftrace' helps pinpoint the bottlenecks. Downgrading drivers or reflashing firmware are more drastic steps to take after confirming resource contention isn't the issue.

by Jonas at Aug 20, 2025, 08:33 PM

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