Answer / chaitanya

The “=” operator in Prolog is actually a predicate that stands for unification. This operator “= =” means the two terms are not identical. Unification does not take place even if this succeeds.

 Which keyword is used to construct an array in LISP? a) Array b) Make-array c) Bins d) Make

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Which checks the evaluated key form against the unevaluated keys using EQL? a) COND b) CASE c) NIL d) SETF

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 Explain where you use + operator in Prolog?

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 Mention what is the difference between = and = = in Prolog?

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 What is the output of the following statement? * (defun both-ends-with-special ()(setf whole-list (cons (first whole-list) (last whole-list)))) * (setf whole-list ‘(monday tuesday wednesday thursday friday)) * (both-ends-with-special) a) Monday b) Friday c) Wednesday d) Both a & b

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 What is the output of the following statement? * (setf book (book=author-writer book ‘(guy steele))) a) Guy b) Steele c) Error d) None of the mentioned

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 How the clause is called if it contains a test, as well as zero or more additional forms in LISP? a) Conditional b) Consequents c) Clause d) None of the mentioned

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 What is the output of the given statement? * (defstruct circle (radius 0)) * (defun area (figure) (cond ((circle-p figure) (* pi (expt (circle-radius figure) 2))))) * (setf circle (make-circle :radius 11)) * (area circle) a) 44 b) 380 c) 382 d) 380.132

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What is the output of the given statement? * (defclass article() ((title :accessor article-title :initarg :title) (author :accessor article-author :initarg :author))) * (defclass computer-article (article) ()) * (defclass business-article (article) ()) * (defclass political-article (article) ()) * (setf articles (list (make-instance ‘business-article :title “Memory Prices down”))) a) Business article b) Political article c) Business article

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 What is the output of the following statement? * ( first (rest (first ‘((a b) (c d))))) a) a b) b c) c d) d

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 What is the other name of boxes in LISP? a) Cons cells b) Conses c) Both a & b d) None of the mentioned

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Explain what is List structures in Prolog?

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