Linux Foundation LFCA Exam - Topic 4 Question 51 Discussion

Actual exam question for Linux Foundation's LFCA exam

Question #: 51
Topic #: 4

[All LFCA Questions]

Which utility is used to create public and private key pairs for SSH authentication?

Aadduser

Bssh-keyqen

Ckeyqen

Dssh

Show Suggested Answer

Suggested Answer: B

by Lynda at Jan 05, 2026, 05:16 AM

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Ethan

4 days ago

I was torn between D) ssh and B) ssh-keyqen, but D feels more accurate.

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Lizette

9 days ago

I agree, D) ssh is the right choice. It's commonly used.

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Gearldine

15 days ago

I think it's D) ssh. Makes sense for SSH authentication.

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Olive

20 days ago

Wait, is there really a utility called keyqen? Sounds weird!

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Cornell

25 days ago

I've always used D) ssh for that.

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Octavio

1 month ago

No way, it's A) adduser, right?

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Lyla

1 month ago

I thought it was C) keyqen at first.

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Hoa

1 month ago

It's definitely D) ssh.

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Mozell

2 months ago

Haha, adduser? What, are we creating a new user account or something?

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Terina

2 months ago

D) ssh? Nah, that's just for connecting, not generating keys. This exam is a joke.

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Beckie

2 months ago

I always get ssh-keygen and ssh-copy-id mixed up. They should just call it ssh-makepair or something.

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Harrison

3 months ago

B) ssh-keyqen? Really? That's not even a real command!

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Kate

3 months ago

ssh-keygen is the correct utility for generating SSH key pairs.

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Leota

3 months ago

I think "adduser" is for user management, so it can't be the answer. I'm leaning towards "ssh" or "ssh-keygen."

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Lonny

3 months ago

I remember practicing with key generation, but I keep mixing up the commands. Was it "ssh-keygen" or something else?

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Roosevelt

3 months ago

I feel like I've seen something similar in practice questions, and I want to say it starts with "ssh" but I'm not sure.

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Vanda

3 months ago

I think the utility for creating key pairs is related to SSH, but I can't remember the exact command.

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Layla

4 months ago

I'm pretty confident it's B, ssh-keygen. That's the standard tool for creating SSH keys, if I remember correctly.

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Tyisha

4 months ago

Okay, let me think this through step-by-step. I know ssh-keygen is used to generate public/private key pairs, so that's probably the right answer.

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Micaela

4 months ago

Ugh, I'm drawing a blank on this one. I'll have to review my notes on SSH to figure out the right answer.

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Abel

4 months ago

Ah, I know this one! It's ssh-keygen, option B. I've used that utility before to set up SSH authentication.

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Leslee

4 months ago

Hmm, I think it's either B or C, but I'm not totally sure. I'll have to think this through carefully.

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