I just don't think the question is unclear. Could anyone give concrete/detailed reason for its closure? And how can I modify it to get it reopened?
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The question you asked is not all that unclear. At least not from a comprehensibility point of view. That is not the problem IMHO, though I'm not really familiar with the subject.
I should have said "questions" though. Plural. The first problem I see is that you're asking 3 questions to start off with. Ideally you should ask a single question per question. Asking multiple questions in one go is problematic with respect to answering them.
Then in your fourth and final question, you ask for a list of constraints, should there be any. Such list-of questions are also a poor fit for the Q&A. Where does the list end? We certainly don't want a whole host of different answers, each one piling on another constraint they have found.
And "I Googled but found inadequate information" does not narrow things down either. What did you find? Anything? Nothing? Just what you stated? It doesn't help your question along.
And with the note that I'm not familiar on the topic (so I might be utterly wrong on this one): The whole question gives me the sneaking suspicion that the answer might well be of the form "RTFM". As in, you might want to Google a bit harder or read the relevant documentation. I can't back this up, but I would not be surprised if that's part of why your question was not well received.
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With your reputation of 87 you can't vote to reopen the question. I recommend to first ask good questions to get reputation. To be able to vote for reopening your own question requires 250 reputation.