Re: Stupid Question maybe?

tim at tim at
Wed Dec 19 09:54:02 UTC 2018

On Tuesday, 18 December, 2018 22:43, "Brandon Martin" <lists.nanog at> said:

> This is a favorite interview type question of mine, but I won't
> disqualify a candidate if they can't come up with the reason. It's more
> of a probe for historical domain knowledge (one of many I'll slip in).

It's an interesting flag at interview for me, if it comes up, but I wouldn't normally talk about it unless the candidate does first.
-If they don't know or mention classful networking at all, they're new (relatively, I'm old), and that's fine.
-If they can get it right, they're either a long-timer or have done some network history.
-If they try to use it, and get it wrong, or can't properly explain it, there's a warning that they've been cramming network skills from some old and/or low-quality sources.  I'd start probing for other warning signs like /24s on point-to-point serial links, RIPv1, and the like.
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