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NVIDIA NCP-AIN Exam - Topic 1 Question 11 Discussion

[BlueField DPU -- DOCA Management]When upgrading DOCA on a BlueField DPU, what command should first be run on the host?
B) /usr/sbin/ofed_uninstall.sh -force
A) sudo apt-get autoremove
C) sudo apt-get upgrade doca
D) sudo apt-get install doca

NVIDIA NCP-AIN Exam - Topic 1 Question 11 Discussion

Actual exam question for NVIDIA's NCP-AIN exam
Question #: 11
Topic #: 1
[All NCP-AIN Questions]

[BlueField DPU -- DOCA Management]

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

Show Suggested Answer Hide Answer
Suggested Answer: B

Before upgrading the DOCA SDK on a BlueField DPU, it is mandatory to uninstall the existing OFED drivers to prevent compatibility conflicts.

From the NVIDIA DOCA Installation Guide:

'Before upgrading DOCA or BlueField-related software, you must remove existing OFED packages using: /usr/sbin/ofed_uninstall.sh -force.'

This ensures:

Clean driver state

No residual kernel modules or userspace libraries

Proper registration of new DOCA/OFED versions

Incorrect Options:

A and C may not resolve conflicts.

D installs but doesn't remove conflicting packages.


by Gene at Nov 25, 2025, 11:20 PM

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Frederica
3 months ago
I’m leaning towards C too. Upgrading should be the priority.
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Arlen
3 months ago
D could work, but why not upgrade first?
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Norah
3 months ago
I agree with B. Clean slate before upgrade is safer.
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Charlena
3 months ago
A seems risky. Autoremove might remove important packages.
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Goldie
3 months ago
I feel like C is the right choice. Upgrading directly seems logical.
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Juliann
4 months ago
I thought we just needed to upgrade directly.
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Val
4 months ago
Wait, are we sure about that?
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Selma
4 months ago
Definitely not A, that won't help.
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Val
5 months ago
I think it's option C, right?
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Sharmaine
5 months ago
Upgrading DOCA? I just want to upgrade my snack supply. Where's the vending machine?
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Raina
5 months ago
A) sudo apt-get autoremove? Hmm, that's for removing unused packages, not upgrading DOCA.
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Bong
5 months ago
D) sudo apt-get install doca? Nah, that's for a fresh install, not an upgrade.
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Dominque
5 months ago
B) /usr/sbin/ofed_uninstall.sh -force? Really? That's a bit overkill, don't you think?
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Gracia
5 months ago
C) sudo apt-get upgrade doca seems like the obvious choice here.
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Demetra
6 months ago
I keep mixing up the commands for upgrading and installing. I want to say C, but I’m not confident about that.
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Lashawnda
6 months ago
I remember practicing a similar question, and I think it was about installing packages. Could it be D?
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Sherill
6 months ago
Hmm, I'm still not 100% sure. I'll make my best guess, but I might need to come back to this one if I'm not confident in my answer.
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Irving
6 months ago
I think the key is that the question specifically says "on the host". That makes me think option C or D might be the way to go, since they involve using apt-get on the host system.
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Jodi
6 months ago
I'm a bit confused here. Does the question mean we should run the command on the host, or on the BlueField DPU itself? That could make a difference in the right answer.
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Chau
6 months ago
I think it's B. Uninstalling first makes sense.
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Shawnta
7 months ago
Gotta run the uninstall script first!
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Rodolfo
7 months ago
I think the command to run first is related to ensuring the system is clean, so maybe it's A? But I'm not entirely sure.
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Larue
7 months ago
I feel like we talked about uninstalling previous versions before upgrading, so maybe B is the right choice?
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Arleen
7 months ago
Okay, let's see. I'm pretty sure we need to uninstall the current DOCA version first, so I'm leaning towards option B.
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Melvin
8 months ago
Hmm, this looks like a tricky one. I'll need to think carefully about the steps for upgrading DOCA on a BlueField DPU.
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Alberto
2 months ago
I’m leaning towards D, fresh install could be safer.
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Carlota
2 months ago
I’d go with A, clean up before anything else.
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Tricia
2 months ago
Yeah, uninstalling first makes sense.
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Ahmed
3 months ago
I think option B is the right start.
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Tresa
7 months ago
But what about option C? Upgrading directly?
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