Example:
Has your computer got a DVD player?
Yes, it does.
Correct?
anonymous Has your computer got a DVD player? Yes, it does. has.
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anonymousHas your computer got a DVD player? Yes, itdoes.has.
As shown.
CJ
Tiebreaker: Either "has" or "does" is fine there in everyday English. It has (got one), or it does (have one). In formal writing, you would have to take into account that "does" relies on a word that is not there in the question and is therefore inferior to "has".