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Bhaagyasree Pandit
Asked: 2022-11-02T09:40:47+05:30 In:

Which of these is correct about passing an argument by call-by-value process?

(a) Copy of argument is made into the formal parameter of the subroutine

(b) Reference to original argument is passed to formal parameter of the subroutine

(c) Copy of argument is made into the formal parameter of the subroutine and changes made on parameters of subroutine have effect on original argument

(d) Reference to original argument is passed to formal parameter of the subroutine and changes made on parameters of subroutine have effect on original argument

Which of these is correct about passing an argument by call-by-value process?

(a) Copy of argument is made into the formal parameter of the subroutine

(b) Reference to original argument is passed to formal parameter of the subroutine

(c) Copy of argument is made into the formal parameter of the subroutine and changes made on parameters of subroutine have effect on original argument

(d) Reference to original argument is passed to formal parameter of the subroutine and changes made on parameters of subroutine have effect on original argument
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  1. Correct option is (a) Copy of argument is made into the formal parameter of the subroutine

    For explanation: When we pass an argument by call-by-value a copy of argument is made into the formal parameter of the subroutine and changes made on parameters of subroutine have no effect on original argument, they remain the same.

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