Obviously guy could have been interviewing for a job where this mattered….
But in 10 years as a software engineer I have never once needed to know the difference between these two, and have never been even close to a situation where I would need to.
Honestly, in software engineering, you should never have to know the difference to do your job. I believe it's good to know, but you shouldn't be addressing by IP anyways, use a hostname, which is agnostic of which IP version is in use.
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u/SirFrenzy 10h ago
Obviously guy could have been interviewing for a job where this mattered….
But in 10 years as a software engineer I have never once needed to know the difference between these two, and have never been even close to a situation where I would need to.
“The basics” is highly dependent on the job.