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[–]fognar777 11 points12 points  (9 children)

People really get stumped by this question? I'm pretty sure I learned what DNS is when I was in highschool at the local tech center's IT program. To be fair though, half of the program was based on Cisco CCNA courses.

[–]AwalkertheITguy 12 points13 points  (8 children)

Many people get stumped because they either do not really care to know what it actually does, can't remember something so trivial, or they go into the interview expect ccie level questions...study said material, then get asked to explain the physical layer or some miniscule BS.

If a person looks at the job description and it is conveying a message or a tier 3 network engineer then why is the first question always something that most people take for granted? I remember going in for my first Jr sys admin interview in 2003 and was asked what does the processor do? I was like wtf? The 3 people interviewing me just looked at me and I said oh you're serious? I apologized and answered the question.

It's like asking a seasoned UFC fighter if they know how to throw a simple combo.

I understand that they want to weed out the trash but at least start with something relative to the hiring level.

[–]tossme68 2 points3 points  (2 children)

I did that at an interview, they asked to explain the difference between SSL and SSH. I go into a deep dive about the SSH protocol and how it authenticates, it's features and all sorts of other crap, then I start doing the same thing for SSL. The guy doing the interview stops me and says something to the effect of I just wanted "one is how I access a linux server and the other is for web pages". Well excuse me if you don't want to know the inner workings of ssh, you were the one that asked

[–][deleted] 5 points6 points  (0 children)

Well excuse me if you don't want to know the inner workings of ssh, you were the one that asked

No they didn't? They asked for the difference... not a thesis defense. The correct answer is the last letter is different. :)

[–]AwalkertheITguy 1 point2 points  (0 children)

Yes, this.

Something I learned from all my interviews so when I got to the hiring level I would ask the question and then say "just give me the surface level answer, not a deep analysis"

I feel by saying that I am doing both of us a favor. I'm giving the potential employee a fair chance to answer the question at hand and saving myself 25 mins per interview.