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BrainiacV wrote: I had one interview that they told me I answered wrong, it turned out their answer was wrong
that's completely different story. i has happened to me many time 
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I'm not sure I agree with the wording of the objection. Theoretical questions are not only fine, they are a good idea. A candidate who has no concept of computer science theory or the abstract concepts involved in software development will produce code that has no governing or organizing principles behind it, and who will make decisions with no awareness of why one choice is better than another.
I don't think it is "theoretical" that is objectionable. It is keyword and buzzword-based interviewing, and arbitrary arcane fact-based interviewing, that is the problem. A lot of technical interviews with non-technical or semi-technical people, or with technical people who haven't thought about what is an effective method of interviewing, go down a sheet asking things like "How many years experience do you have with REST?" "How many years experience do you have with ASP.NET custom controls?" "What is the third option on the file menu in Visual Studio?" This kind of interviewing makes me far less interested in the job, not only because it means the management may not be the greatest, but because everyone they've already hired went through the same, ineffective interview filter and therefore the team I'd be working with is unlikely to be inspiring.
But I've had occasion to ask people about theory, say, to explain the basic ideas that make up object-oriented programming, and it can sometimes very quickly take someone who looks good on paper and discover the reality. You have to do that kind of thing in order to get a sense of whether the person understands what the acronyms he has pasted onto his resume actually mean...because there are as many candidates out there who are nothing more than a collection of buzzwords and keywords as there are hiring managers who are the same.
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Trajan McGill wrote: . A candidate who has no concept of computer science theory or the abstract concepts involved in software development will produce code that has no governing or organizing principles behind it, and who will make decisions with no awareness of why one choice is better than another.
Well i would disagree with this. Even i know what is MVVM there is no way i use it until i have some exp with it. To judge a person if he can make a informed decision about which pattern to use and which to avoid you need to ask practical question. if you ask him tell me what is factory pattern and what is command patterns or what is DI you can never judge if he can do a good design. Best way to judge a if someone has good knowledge give me a problem and ask for a design and see how good the design is and if is following Factory/DI/MVVM and so on where it's required.
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You're actually disagreeing with the inverse of what I said. You're right, understanding a concept doesn't necessarily mean one knows the details as they work in practice, but not understanding a concept definitely means one doesn't know the details as they work in practice. If you can't even explain the idea of MVVM, there's no point in asking you to show it in practice.
You also can get some feel for whether the person has truly applied these concepts by their answers. Do the answers sound like recited, memorized dictionary definitions? Do they sound like a vague conceptual awareness? Does the person seem to have familiarity with the messiness that one encounters when taking pure-sounding ideas and putting them into practice?
But there's more to it than that. There are plenty of developers who can slap together things that work, more or less. There are a zillion programmers who have tons of technical knowledge at the detail level, without having any real conception of the higher, more abstract levels. I encounter their code all the time, and it has no forethought, no theory or philosophy, and no maintainability. Where they use patterns or concepts, they invoke them like magical incantations, rather than with understanding. An interview process should definitely look for this weakness. I'd rather have a person who thinks well and has never used the tool, language, or even specific programming patterns in question than one who cranks out cargo cult code based on a copy-and-paste-level understanding of MVVM or whatever.
The best way to examine this involves a variety of things going on in the interview process, and I agree it involves talking through actual problems and exploring their thought processes, but that is a part of asking about theory, it isn't a replacement for it.
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The question is: can the interviewee know nothing of the concepts of MVVM just because he doesn't know the definition that you are asking about?
I've been using design patterns for many years, before Gamme et al even wrote that book! Just because at the time I couldn't answer what a bridge or factory pattern was didn't mean that I I didn't know and firmly understand the concepts!
It's an entirely different thing if you ask about some keywords that are familiar to you, or the concepts behind it! It's possible that the person you're asking is not familiar with that keyword, but knows more about the concepts than you ever will.
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CS2011 wrote: and all the question he asked was theoretical like what is MMVM, What is solid principal and DI... i rejected it saying i was not OK with the way interview went and kind of question i was asked and would not like to work with a team like that
Since I don't interview candidates as a full time job, I keep a list of interview questions that I pull from. Some questions are theoretical, some not. They don't really reflect how the team works together, but are tools for me to assess how well the candidate will fit in and how much they might need to pick up. Trying to judge how my team works by the questions I ask would be a mistake. If you want to know, ask me. If I'm only asking theoretical questions, asking why is a fair question from a candidate.
Are you sure you didn't reject that offer because of an incorrect assumption about how the team works that you based simply on which questions they asked to assess your knowledge and fit?
We can program with only 1's, but if all you've got are zeros, you've got nothing.
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patbob wrote: Are you sure you didn't reject that offer because of an incorrect assumption about how the team works that you based simply on which questions they asked to assess your knowledge and fit?
Well you might be correct.
Some theory and some not i can understand but when every single question asked is theoretical..Well that's different story. In my personal experience person taking interview will be your boos (most of the case if not all and again in my experience) and i really didn't wanted to report to someone who is more interested in theory rather then checking out if a personal has some real problem solving skills.
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I take it there weren't other members of the interview team that assessed your problem solving skills?
In some of the interview teams I've been on, we split up what we questioned a candidate about to get better coverage in the available time. If all the technical people quizzed you about theoretical knowledge, then yes, that would be a bad sign .
We can program with only 1's, but if all you've got are zeros, you've got nothing.
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Well, if you ask me a Software Architect is someone that will deal with a high level of abstraction so understanding the principles and theory behind the code it's a must, although a pure theory interview it's not very productive.
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There was a time when they used to ask:
1) What appeals to you more? Having a clean desk or looking at a pretty girl?
2) How much do you drink per week?
...
They used "industrial psychologists" and not HR / IT interviewer types.
(Got the job).
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There is nothing wrong with you. You felt that the questions did not correspond to your way of thinking and your way of looking at the job and of approaching the situations at hand. Thus, you had to reject the job. Most interview questions have long been *extremely* inadequate at judging prospective employers, something that Microsoft and Google have now began to realize and change. I wish that everyone was like you. You disagree with something and you stand up to it with courage and state your opinion. No, there is nothing wrong with you. What you have is integrity. There is nothing wrong with that.
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...but...what happens if you give modern kids old technology?
Kids react to...the Walkman[^]
Make me feel old. 
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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Nauseatingly *ahem* confident children.
Though it is a worry the older ones don't seem to know how to use headphones.
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Keith Barrow wrote: Nauseatingly *ahem* confident children.
Seems fake and for punishment I'd make them set clock on a VCR.
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Mladen Janković wrote: set clock on a VCR.
That's easy - get them to set up a series record on a VCR from the days before VideoPlus+... 
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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This was the most useless feature of VCR  Either the show didn't start on time or tape was too short and you end up without start/end and a lot of commercials in between 
--
"My software never has bugs. It just develops random features."
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At least it set the right channel - which I got wrong a couple of times... 
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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And make sure what you've got in is a blank tape set at the correct time; not the movie you were watching the night before...
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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And that you had rewound it... 
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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Actually I recorded over part of the 2nd movie we'd put on the tape. (And it wasn't my parents tape to begin with either.)
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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Level2: Record something on magnetophon and play it.
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Why don't they know how to use headphones? Are they all puny sodcasters?
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And here´s a pencil. What do you think people in the eighties did with it ?
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Depends. Were they constipated mathematicians? 
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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I would wait until there was a test and the entire classroom in total silence. Then get up and proceed to sharpen the pencil for about 2 minutes or until there was merely a stub with an eraser.. If it was a quality pencil it would also be needle sharp. In which I would begin to write and break the tip.. And repeat. Or I'd just throw them to the ceiling and see if they stick to the ceiling tiles..
Pencils also make good arrows when combined with paper clips and rubber bands.. Ahhh the 80s. In a time where texting was actually passing notes when the teacher wasn't looking and getting tagged at recess only meant you were a slow runner and not that every other kid on the playground was a bully.
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