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?

Asudo apt-get autoremove

B/usr/sbin/ofed_uninstall.sh -force

Csudo apt-get upgrade doca

Dsudo apt-get install doca

Show Suggested 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

1 month ago

I’m leaning towards C too. Upgrading should be the priority.

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Arlen

1 month ago

D could work, but why not upgrade first?

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Norah

2 months ago

I agree with B. Clean slate before upgrade is safer.

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Charlena

2 months ago

A seems risky. Autoremove might remove important packages.

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Goldie

2 months ago

I feel like C is the right choice. Upgrading directly seems logical.

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Juliann

2 months ago

I thought we just needed to upgrade directly.

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Val

2 months ago

Wait, are we sure about that?

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Selma

3 months ago

Definitely not A, that won't help.

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Val

3 months ago

I think it's option C, right?

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Sharmaine

3 months ago

Upgrading DOCA? I just want to upgrade my snack supply. Where's the vending machine?

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Raina

3 months ago

A) sudo apt-get autoremove? Hmm, that's for removing unused packages, not upgrading DOCA.

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Bong

4 months ago

D) sudo apt-get install doca? Nah, that's for a fresh install, not an upgrade.

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Dominque

4 months ago

B) /usr/sbin/ofed_uninstall.sh -force? Really? That's a bit overkill, don't you think?

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Gracia

4 months ago

C) sudo apt-get upgrade doca seems like the obvious choice here.

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Demetra

4 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

4 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

4 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

5 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

5 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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