I've heard this joke once (possibly on RHF) about an interview of a systems administrator, and I thought how the interviewing process has changed over the years.
In the 80s:
Recruiter: "Tell me the meanings of all the extensions to file names"
Candidate: "VMS or MS-DOS?"
Recruiter: "You got the job!"
In the 90s:
Recruiter: "Tell me all the options used by /bin/ls"
Candidate: "BSD options or System V?"
Recruiter: "You got the job!"
In the 00s:
Candidate: "Tell me all the options"
Recruiter: "20000, 1 year vesting, $1 strike price, IPO next month"
Candidate: "I'll take the job!"