There are moments in life when I wish everyone was forced to learn NATO phonetic alphabet early in school.
"Charlie Hotel Mike Oscar Delta Seven Seven Seven".
The reason to cram into people a standard spelling alphabet is that it minimizes confusion over the usual "see as in $random-first-name". The reason to standardize on the NATO one is that it's already an international standard, and a subset of the population that goes to work with anything resembling a radio transceiver will have to learn it anyway.
It wouldn’t have helped in the interview if they did use the NATO phonetic alphabet because when you read CLI commands or talk about them in the office, you don’t spell it out using the NATO alphabet.
The point was the interviewer read a written command differently to how I’d typically hear it. It’s a little like the S-Q-L vs Sequal debate and how that can sometimes throw people.
I've never heard 'h' pronounced like that.