Answer / chaitanya

LISP provides a “call-back” function, when programmer associates a foreign language function name with a LISP function, it is linked with these call-back functions. With foreign function programmer must supply the result data types and argument, so that LISP may perform conversions at the interface

Which is used to seperate the abstraction layers? a) Abstraction boundaries b) Data c) Procedure d) All of the mentioned

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 What is the output of the given statement? * (defstruct person (sex nil) (personality ‘nice)) * (setf person-instance-1 (make-person)) * (setf person-instance-2 (make-person :sex ‘female)) * (person-personality person-instance-2) a) Female b) Nice c) Person d) Both a & b

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What is the output of the given statement? * (setf toss ‘(heads tails tails tails heads tails)) * (delete ‘heads toss) * toss a) Heads tails b) Heads tails tails tails tails c) Heads d) None of the mentioned

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 What is the output of the following statement in LISP? * (setf thing ‘point r 1) * (case thing (circle (*pi r r))(sphere (* 4 pi r r)) (otherwise 0)) a) 1 b) 0 c) 12.566 d) None of the mentioned

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Which forms can be constructed with the same primitives that manipulate lisp expressions? a) Lisp b) Macro c) Procedure d) Defun

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What is the output of the given statement? * (defstruct person (sex nil) (personality ‘nice)) * (setf person-instance-1 (make-person)) * (setf person-instance-2 (make-person :sex ‘female)) a) Person :sex female :personality nice b) Person :sex c) Sex:Female 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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 Which is a procedures supplied by user in terms of primitives? a) Custom b) User-defined c) Definite d) All of the mentioned

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How many access procedures are avilable in lisp? a) 1 b) 2 c) 3 d) 4

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Which creates reader procedures for getting things out of an instance fields? a) Structure in LISP b) Defstruct c) Class d) Object

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 What is the output of the given statement? * (defmethod area ((figure rectangle)) (* (rectangle-width figure) (rectangle-height figure))) a) Area b) Rectangle c) Height d) Error

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 Which hides details behind abstraction boundaries? a) Procedures b) Procedure abstraction c) Recursion d) Both a & b

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